- International families
- 45k2015 to 2024
- Leading country
- China1.7× the next
- All families
- 273khome filings included
- Over five years
- Falling2020 to 2024 against the five before
Year by year
Patent families by country of origin and the year of the earliest filing, 2000 to 2025; 2025 is a part year, still filling in. International families are those for which protection was sought beyond one country.
Volume
International patent families in the capability, by the year of the earliest filing.
Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google
Share by country
Each country's share of the year's international families, in per cent: the capability's five largest countries of origin, 2015 to 2024, and the rest of the world.
Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google
Country leaderboard
International patent families, 2015 to 2024, by country of origin. Growth compares the latest five full years with the five before.
Ten largest
China
Japan
United States
South Korea
Germany
Denmark
France
Spain
Taiwan
United Kingdom
9,914
5,849
5,618
5,116
4,625
3,176
1,556
1,169
876
807
| 2000 to 2025 | ||||||
|---|---|---|---|---|---|---|
| 1 | China | 9,914 | 21.8% | 1.7× | 195,635 | |
| 2 | Japan | 5,849 | 12.9% | 0.5× | 13,978 | |
| 3 | United States | 5,618 | 12.4% | 0.7× | 10,424 | |
| 4 | South Korea | 5,116 | 11.2% | 0.6× | 24,118 | |
| 5 | Germany | 4,625 | 10.2% | 0.7× | 6,562 | |
| 6 | Denmark | 3,176 | 7.0% | 1.0× | 3,351 | |
| 7 | France | 1,556 | 3.4% | 1.0× | 2,252 | |
| 8 | Spain | 1,169 | 2.6% | 1.9× | 1,443 | |
| 9 | Taiwan | 876 | 1.9% | 0.6× | 2,195 | |
| 10 | United Kingdom | 807 | 1.8% | 0.8× | 1,079 | |
| 11 | Netherlands | 719 | 1.6% | 0.9× | 951 | |
| 12 | Switzerland | 614 | 1.3% | 0.7× | 725 | |
| 13 | Italy | 592 | 1.3% | 1.1× | 1,002 | |
| 14 | Canada | 497 | 1.1% | 1.0× | 797 | |
| 15 | Australia | 356 | 0.8% | 0.9× | 562 | |
| 16 | Austria | 350 | 0.8% | 1.2× | 437 | |
| 17 | Sweden | 341 | 0.7% | 1.0× | 410 | |
| 18 | Israel | 303 | 0.7% | 1.1× | 414 | |
| 19 | Norway | 293 | 0.6% | 2.6× | 390 | |
| 20 | India | 291 | 0.6% | 1.0× | 420 | |
| 21 | Türkiye | 252 | 0.6% | 1.9× | 498 | |
| 22 | Singapore | 244 | 0.5% | 1.4× | 278 | |
| 23 | Finland | 204 | 0.4% | 0.8× | 245 | |
| 24 | Belgium | 204 | 0.4% | 0.9× | 253 | |
| 25 | Poland | 144 | 0.3% | 1.1× | 922 | |
| 26 | Saudi Arabia | 138 | 0.3% | 0.6× | 285 | |
| 27 | Russia | 115 | 0.3% | 0.6× | 912 | |
| 28 | Brazil | 104 | 0.2% | 0.9× | 430 | |
| 29 | Ireland | 68 | 0.1% | 1.1× | 83 | |
| 30 | Portugal | 56 | 0.1% | 0.6× | 89 | |
| 31 | Mexico | 53 | 0.1% | 1.0× | 238 | |
| 32 | Luxembourg | 44 | 0.1% | 1.4× | 48 | |
| 33 | South Africa | 41 | 0.1% | 1.1× | 46 | |
| 34 | Czechia | 36 | 0.1% | 2.3× | 78 | |
| 35 | Hungary | 33 | 0.1% | 0.6× | 102 | |
| 36 | Hong Kong | 29 | 0.1% | 1.4× | 65 | |
| 37 | Malaysia | 26 | 0.1% | 1.0× | 63 | |
| 38 | New Zealand | 25 | 0.1% | 1.1× | 37 | |
| 39 | Cayman Islands | 11 | 0.0% | 0.2× | 23 | |
| 40 | Liechtenstein | 3 | 0.0% | 2.0× | 4 |
Applicants
The largest applicants by international patent families, 2015 to 2024: across the world, then within each of the five countries with the most families in Renewable Generation. Names are as held in the source and are not consolidated across subsidiaries.
Global
45,485 international families
SAMSUNG DISPLAY CO LTD · South Korea
VESTAS WIND SYS AS · Denmark
SIEMENS GAMESA RENEWABLE ENERGY AS · Denmark
BOE TECHNOLOGY GROUP CO LTD · China
GEN ELECTRIC · United States
WOBBEN PROPERTIES GMBH · Germany
1,297
1,262
1,185
671
643
537
China
9,914 international families
BOE TECHNOLOGY GROUP CO LTD
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD
HUAWEI DIGITAL POWER TECH CO LTD
ZHEJIANG JINKO SOLAR CO LTD
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD
SUNGROW POWER SUPPLY CO LTD
671
466
326
192
189
185
Japan
5,849 international families
PANASONIC IP MAN CO LTD
SHARP KK
KANEKA CORP
TOSHIBA KK
JAPAN DISPLAY INC
TOYOTA MOTOR CORP
324
253
223
213
187
178
United States
5,618 international families
GEN ELECTRIC
GENERAL ELECTRIC RENOVABLES ESPANA SL
SUNPOWER CORP
UNIVERSAL DISPLAY CORP
NEXTRACKER LLC
3M INNOVATIVE PROPERTIES CO
621
195
128
119
98
78
South Korea
5,116 international families
SAMSUNG DISPLAY CO LTD
LG DISPLAY CO LTD
SAMSUNG ELECTRONICS CO LTD
LG ELECTRONICS INC
LG CHEMICAL LTD
HANWHA SOLUTIONS CORP
1,236
347
294
240
238
164
Germany
4,625 international families
WOBBEN PROPERTIES GMBH
MERCK PATENT GMBH
SIEMENS AG
SENVION GMBH
NORDEX ENERGY SE & CO KG
FLENDER GMBH
537
263
251
186
183
136
Similar capabilities
The nine capabilities that share the most international patent families with Renewable Generation, 2015 to 2024: the families counted in both as a share of those counted in either. Each card shows its five largest countries.
Critical Technology
Next-Generation Solar & Renewables
45.4% shared · 23,664 families in both
China
Japan
United States
Germany
Denmark
5,522
4,562
3,649
3,261
2,913
Strategic Infrastructure
System Control & Dispatch
6.0% shared · 3,962 families in both
China
Japan
United States
Germany
South Korea
5,396
4,879
4,394
2,294
1,663
Strategic Infrastructure
Storage & Fuel Supply
3.0% shared · 2,825 families in both
Japan
United States
Germany
China
South Korea
10,180
8,639
7,064
6,169
4,954
Strategic Infrastructure
Oil & Gas Extraction
2.3% shared · 1,835 families in both
United States
China
Saudi Arabia
France
Norway
17,083
4,363
2,572
1,718
1,707
Critical Technology
Advanced Imaging & Photonic Sensing
1.4% shared · 1,425 families in both
Japan
United States
China
South Korea
Germany
15,415
10,867
7,351
5,927
5,220
Strategic Infrastructure
Hydropower
1.3% shared · 639 families in both
China
United States
Japan
South Korea
Germany
849
601
301
249
242
Production & Innovation
Foundational & Process Industries
1.3% shared · 4,506 families in both
Japan
United States
China
South Korea
Germany
94,317
55,479
36,011
28,513
26,005
Strategic Infrastructure
Transmission & Distribution
1.1% shared · 814 families in both
Japan
United States
Germany
China
Switzerland
6,370
4,752
4,565
3,876
2,155
Strategic Infrastructure
Chemicals & Hazardous Process Industry
1.0% shared · 1,182 families in both
United States
Japan
China
Germany
South Korea
16,120
13,036
11,408
6,357
5,716
Crosswalk
How Renewable Generation is matched to the patent classifications. The entries below were chosen for it; each stands for itself and everything beneath it in the scheme, 704 Cooperative entries in all. A patent family counts when any of its codes, in either scheme and at any office, falls under one of them. Codes since retired are placed under the entries that replaced them.
| Entry | Title in the scheme | Why it is chosen | CPC codes | IPC codes | Documents |
|---|---|---|---|---|---|
| F03D | Wind motors | Wind turbines | 306 | 72 | 607,912 |
| H02S | Generation of electric power by conversion of infrared radiation, visible light or ultraviolet light, e.g. using photovoltaic [pv] modules | Photovoltaic power generation systems and mounting | 39 | 38 | 418,772 |
| H10F19/00 | Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules | Photovoltaic modules and assemblies of cells | 35 | 17 | 180,416 |
| F24S | Solar heat collectors; solar heat systems | Solar heat collectors and concentrating solar systems | 432 | 171 | 446,805 |
| F03G6/00 | Devices for producing mechanical power from solar energy | Mechanical power from solar heat | 33 | 5 | 25,559 |
| F03G4/00 | Devices for producing mechanical power from geothermal energy | Mechanical power from geothermal energy | 18 | 4 | 13,167 |
| F24T | Geothermal collectors; geothermal systems | Geothermal collectors and systems | 24 | 13 | 31,736 |
| C12M1/107 | Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane | Biogas digesters collecting fermentation methane | 2 | 2 | 23,372 |
| C10L5/40 | Solid fuels essentially based on materials of non-mineral origin | Solid fuels from biomass | 10 | 5 | 36,408 |
| Y02E10/10 | Geothermal energy | Tagged geothermal energy technologies | 1 | none | 31,050 |
| Y02E10/40 | Solar thermal energy, e.g. solar towers | Tagged solar thermal energy technologies | 4 | none | 253,936 |
| Y02E10/50 | Photovoltaic [PV] energy | Tagged photovoltaic energy technologies | 12 | none | 942,500 |
| Y02E10/70 | Wind energy | Tagged wind energy technologies | 6 | none | 453,166 |
CPC and IPC codes are the codes in use on patent documents, at any office, that fall under the entry. Documents is the larger of the two schemes' counts of documents carrying one of them. An entry with no IPC codes can be told apart only in the Cooperative scheme.
The Cooperative codes in use that count towards Renewable Generation: 922 codes on 3,354,219 documents. The 150 most used are listed; the full list is in the cpc-to-capability.csv download.
| Code | Title | Under entry | How placed | Documents |
|---|---|---|---|---|
| Y02E10/50 | Photovoltaic [PV] energy | Y02E10/50 | In the scheme | 501,149 |
| Y02E10/72 | Wind turbines with rotation axis in wind direction | Y02E10/70 | In the scheme | 291,580 |
| Y02E10/549 | Organic PV cells | Y02E10/50 | In the scheme | 161,778 |
| Y02E10/40 | Solar thermal energy, e.g. solar towers | Y02E10/40 | In the scheme | 89,206 |
| Y02E10/56 | Power conversion systems, e.g. maximum power point trackers | Y02E10/50 | In the scheme | 83,668 |
| Y02E10/47 | Mountings or tracking | Y02E10/40 | In the scheme | 73,155 |
| Y02E10/44 | Heat exchange systems | Y02E10/40 | In the scheme | 69,411 |
| Y02E10/52 | PV systems with concentrators | Y02E10/50 | In the scheme | 53,248 |
| Y02E10/547 | Monocrystalline silicon PV cells | Y02E10/50 | In the scheme | 44,423 |
| Y02E10/728 | Onshore wind turbines | Y02E10/70 | In the scheme | 44,227 |
| Y02E10/74 | Wind turbines with rotation axis perpendicular to the wind direction | Y02E10/70 | In the scheme | 43,070 |
| Y02E10/76 | Power conversion electric or electronic aspects | Y02E10/70 | In the scheme | 38,782 |
| F03D9/25 | Wind motors characterised by the driven apparatus the apparatus being an electrical generator | F03D | In the scheme | 35,033 |
| H10F19/80 | Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells | H10F19/00 | In the scheme | 32,847 |
| Y02E10/542 | Dye sensitized solar cells | Y02E10/50 | In the scheme | 32,293 |
| Y02E10/10 | Geothermal energy | Y02E10/10 | In the scheme | 31,050 |
| H02S20/30 | Supporting structures being movable or adjustable, e.g. for angle adjustment | H02S | In the scheme | 26,911 |
| Y02E10/727 | Offshore wind turbines | Y02E10/70 | In the scheme | 24,484 |
| F03D13/20 | Arrangements for mounting or supporting wind motors; Masts or towers for wind motors | F03D | In the scheme | 24,201 |
| F03D17/00 | Monitoring or testing of wind motors, e.g. diagnostics | F03D | In the scheme | 22,923 |
| H10F19/00 | Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules | H10F19/00 | In the scheme | 22,811 |
| Y02E10/46 | Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines | Y02E10/40 | In the scheme | 22,164 |
| F03D1/0675 | Rotors characterised by their construction elements of the blades | F03D | In the scheme | 21,746 |
| H02S20/32 | Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking | H02S | In the scheme | 21,285 |
| F03D80/00 | Details, components or accessories not provided for in groups F03D1/00 - F03D17/00 | F03D | In the scheme | 19,595 |
| H02S20/23 | Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures | H02S | In the scheme | 17,868 |
| Y02E10/541 | CuInSe2 material PV cells | Y02E10/50 | In the scheme | 17,667 |
| F03D80/70 | Bearing or lubricating arrangements | F03D | In the scheme | 17,481 |
| H10F19/804 | Materials of encapsulations | H10F19/00 | In the scheme | 17,467 |
| F03D7/0224 | Adjusting blade pitch | F03D | In the scheme | 17,441 |
| F03D13/10 | Assembly of wind motors; Arrangements for erecting wind motors | F03D | In the scheme | 17,424 |
| H02S30/10 | Frame structures | H02S | In the scheme | 17,122 |
| Y02E10/548 | Amorphous silicon PV cells | Y02E10/50 | In the scheme | 17,058 |
| H02S50/00 | Monitoring or testing of PV systems, e.g. load balancing or fault identification | H02S | In the scheme | 16,241 |
| H02S40/10 | Cleaning arrangements | H02S | In the scheme | 16,073 |
| H02S50/10 | Testing of PV devices, e.g. of PV modules or single PV cells | H02S | In the scheme | 14,852 |
| H02S40/38 | Energy storage means, e.g. batteries, structurally associated with PV modules | H02S | In the scheme | 14,682 |
| H10F19/902 | Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells | H10F19/00 | In the scheme | 14,428 |
| H02S40/34 | Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes | H02S | In the scheme | 14,222 |
| Y02E10/544 | Solar cells from Group III-V materials | Y02E10/50 | In the scheme | 14,222 |
| F03D13/25 | Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation | F03D | In the scheme | 14,169 |
| H02S20/00 | Supporting structures for PV modules | H02S | In the scheme | 14,068 |
| F24S30/425 | Horizontal axis | F24S | In the scheme | 13,609 |
| F03D15/00 | Transmission of mechanical power | F03D | In the scheme | 13,442 |
| H10F19/85 | Protective back sheets | H10F19/00 | In the scheme | 12,500 |
| H02S40/22 | Light-reflecting or light-concentrating means | H02S | In the scheme | 12,410 |
| F24S20/20 | Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants | F24S | In the scheme | 12,145 |
| Y02E10/70 | Wind energy | Y02E10/70 | In the scheme | 11,023 |
| F03D80/50 | Maintenance or repair | F03D | In the scheme | 10,799 |
| H02S40/32 | Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules | H02S | In the scheme | 10,652 |
| F03D9/11 | Combinations of wind motors with apparatus storing energy storing electrical energy | F03D | In the scheme | 10,385 |
| H02S20/10 | Supporting structures directly fixed to the ground | H02S | In the scheme | 10,245 |
| F24S50/20 | Arrangements for controlling solar heat collectors for tracking | F24S | In the scheme | 10,214 |
| H02S30/20 | Collapsible or foldable PV modules | H02S | In the scheme | 9,842 |
| H02S40/44 | Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time | H02S | In the scheme | 9,732 |
| H10F19/904 | Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells characterised by the shapes of the structures | H10F19/00 | In the scheme | 9,691 |
| F03D7/0204 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction | F03D | In the scheme | 9,125 |
| F03D3/005 | Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical | F03D | In the scheme | 9,026 |
| H02S40/30 | Electrical components | H02S | In the scheme | 8,919 |
| F03D15/10 | Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members | F03D | In the scheme | 8,869 |
| C10L5/44 | Solid fuels essentially based on materials of non-mineral origin on vegetable substances | C10L5/40 | In the scheme | 8,647 |
| Y02E10/546 | Polycrystalline silicon PV cells | Y02E10/50 | In the scheme | 8,519 |
| F03D9/255 | Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor | F03D | In the scheme | 8,134 |
| F03D7/048 | Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms | F03D | In the scheme | 7,866 |
| F03D1/0658 | Arrangements for fixing wind-engaging parts to a hub | F03D | In the scheme | 7,845 |
| F24S23/74 | Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces | F24S | In the scheme | 7,611 |
| H02S10/40 | Mobile PV generator systems | H02S | In the scheme | 7,592 |
| H10F19/31 | Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells having multiple laterally adjacent thin-film photovoltaic cells deposited on the same substrate | H10F19/00 | In the scheme | 7,546 |
| H02S10/12 | Hybrid wind-PV energy systems | H02S | In the scheme | 7,471 |
| F03D3/062 | Rotors characterised by their construction elements | F03D | In the scheme | 7,456 |
| F24S20/67 | Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions | F24S | In the scheme | 7,415 |
| F03D7/042 | Automatic control; Regulation by means of an electrical or electronic controller | F03D | In the scheme | 7,344 |
| H02S40/36 | Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection | H02S | In the scheme | 7,306 |
| H10F19/90 | Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers | H10F19/00 | In the scheme | 7,261 |
| H02S30/00 | Structural details of PV modules other than those related to light conversion | H02S | In the scheme | 6,992 |
| F03D7/00 | Controlling wind motors | F03D | In the scheme | 6,872 |
| F03D13/40 | Arrangements or methods specially adapted for transporting wind motor components | F03D | In the scheme | 6,761 |
| F03D80/60 | Cooling or heating of wind motors | F03D | In the scheme | 6,746 |
| F24S23/70 | Arrangements for concentrating solar-rays for solar heat collectors with reflectors | F24S | In the scheme | 6,699 |
| F03D9/007 | Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy | F03D | In the scheme | 6,687 |
| F03D1/04 | Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels | F03D | In the scheme | 6,621 |
| F03D13/22 | Foundations specially adapted for wind motors | F03D | In the scheme | 6,616 |
| H10F19/908 | Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells for back-contact photovoltaic cells | H10F19/00 | In the scheme | 6,531 |
| H10F19/807 | Double-glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets | H10F19/00 | In the scheme | 6,495 |
| F03D1/0633 | Rotors characterised by their aerodynamic shape of the blades | F03D | In the scheme | 6,380 |
| F03D3/061 | Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles | F03D | In the scheme | 6,356 |
| F24S10/45 | Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical | F24S | In the scheme | 6,323 |
| F24S60/30 | Arrangements for storing heat collected by solar heat collectors storing heat in liquids | F24S | In the scheme | 6,291 |
| F03D7/0284 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid | F03D | In the scheme | 6,011 |
| F24S80/30 | Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers | F24S | In the scheme | 5,999 |
| F03D9/32 | Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles | F03D | In the scheme | 5,983 |
| H02S40/425 | Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation | H02S | In the scheme | 5,957 |
| C10L5/46 | Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse | C10L5/40 | In the scheme | 5,843 |
| F03D9/257 | Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor the wind motor being part of a wind farm | F03D | In the scheme | 5,760 |
| H10F19/906 | Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells characterised by the materials of the structures | H10F19/00 | In the scheme | 5,593 |
| F24S25/61 | Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures | F24S | In the scheme | 5,566 |
| F03D3/02 | Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having a plurality of rotors | F03D | In the scheme | 5,458 |
| F03D80/30 | Lightning protection | F03D | In the scheme | 5,434 |
| H02S10/00 | PV power plants; Combinations of PV energy systems with other systems for the generation of electric power | H02S | In the scheme | 5,391 |
| F24S30/452 | Vertical primary axis | F24S | In the scheme | 5,390 |
| H10F19/30 | Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells | H10F19/00 | In the scheme | 5,305 |
| H02S20/26 | Building materials integrated with PV modules, e.g. façade elements | H02S | In the scheme | 5,304 |
| F03D1/06 | Rotors | F03D | In the scheme | 5,290 |
| Y02E10/543 | Solar cells from Group II-VI materials | Y02E10/50 | In the scheme | 5,277 |
| H02S40/00 | Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00 | H02S | In the scheme | 5,260 |
| H02S20/25 | Roof tile elements | H02S | In the scheme | 5,237 |
| F03D7/06 | Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor | F03D | In the scheme | 4,937 |
| C10L5/442 | Wood or forestry waste | C10L5/40 | In the scheme | 4,896 |
| F03D1/065 | Rotors characterised by their construction elements | F03D | In the scheme | 4,844 |
| F24S23/30 | Arrangements for concentrating solar-rays for solar heat collectors with lenses | F24S | In the scheme | 4,822 |
| F24S25/10 | Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface | F24S | In the scheme | 4,805 |
| F03D9/28 | Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor | F03D | In the scheme | 4,804 |
| C10L5/445 | Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues | C10L5/40 | In the scheme | 4,751 |
| F24S10/70 | Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits | F24S | In the scheme | 4,737 |
| H02S20/22 | Supporting structures directly fixed to an immovable object specially adapted for buildings | H02S | In the scheme | 4,725 |
| F24T10/10 | Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground | F24T | In the scheme | 4,583 |
| F03D7/0296 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions | F03D | In the scheme | 4,577 |
| F03D80/40 | Ice detection; De-icing means | F03D | In the scheme | 4,532 |
| F24S25/65 | Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for coupling adjacent supporting elements, e.g. for connecting profiles together | F24S | In the scheme | 4,478 |
| F24S25/20 | Peripheral frames for modules | F24S | In the scheme | 4,473 |
| F24S40/20 | Cleaning; Removing snow | F24S | In the scheme | 4,437 |
| F03D7/0276 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed | F03D | In the scheme | 4,431 |
| F24S25/70 | Arrangement of stationary mountings or supports for solar heat collector modules with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances | F24S | In the scheme | 4,425 |
| H02S10/20 | Systems characterised by their energy storage means | H02S | In the scheme | 4,364 |
| F24S60/00 | Arrangements for storing heat collected by solar heat collectors | F24S | In the scheme | 4,361 |
| F03D9/00 | Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations | F03D | In the scheme | 4,336 |
| F03D7/02 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor | F03D | In the scheme | 4,330 |
| F03D7/028 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power | F03D | In the scheme | 4,317 |
| F03D7/04 | Automatic control; Regulation | F03D | In the scheme | 4,290 |
| F24S23/77 | Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates | F24S | In the scheme | 4,282 |
| H02S10/10 | PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems | H02S | In the scheme | 4,218 |
| F24S25/12 | Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles | F24S | In the scheme | 4,165 |
| H02S20/20 | Supporting structures directly fixed to an immovable object | H02S | In the scheme | 4,074 |
| H10F19/33 | Patterning processes to connect the photovoltaic cells, e.g. laser cutting of conductive or active layers | H10F19/00 | In the scheme | 4,012 |
| H10F19/35 | Structures for the connecting of adjacent photovoltaic cells, e.g. interconnections or insulating spacers | H10F19/00 | In the scheme | 4,009 |
| F24S25/13 | Profile arrangements, e.g. trusses | F24S | In the scheme | 4,001 |
| F24S25/636 | Clamps; Clips clamping by screw-threaded elements | F24S | In the scheme | 3,981 |
| F24S23/71 | Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces | F24S | In the scheme | 3,945 |
| F24S20/66 | Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of facade constructions, e.g. wall constructions | F24S | In the scheme | 3,935 |
| F24S23/79 | Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting reflective surfaces | F24S | In the scheme | 3,836 |
| F03D7/0272 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator | F03D | In the scheme | 3,773 |
| F24T10/20 | Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells | F24T | In the scheme | 3,707 |
| H02S40/42 | Cooling means | H02S | In the scheme | 3,673 |
| F24S23/31 | Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses | F24S | In the scheme | 3,643 |
| F03D1/02 | Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors | F03D | In the scheme | 3,627 |
| F03D1/00 | Wind motors with rotation axis substantially parallel to the air flow entering the rotor | F03D | In the scheme | 3,618 |
| F24S70/225 | Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption for spectrally selective absorption | F24S | In the scheme | 3,610 |
| F03D7/043 | Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic | F03D | In the scheme | 3,552 |
| F03D7/0264 | Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations | F03D | In the scheme | 3,542 |
| F24S50/40 | Arrangements for controlling solar heat collectors responsive to temperature | F24S | In the scheme | 3,523 |