F03D 1/0681
Spar caps
Official title: {Spar caps}
F03D1/0681 (Spar caps) appears on 42 US grants and 70 published applications in this corpus.
Search patents in F03D- Granted patents
- 42
- Published applications
- 70
- Assignees
- 18
- Inventors
- 145
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 11 |
| 2024 | 9 | 24 |
| 2025 | 19 | 13 |
| 2026 | 11 | 16 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of manufacturing a shell of a wind turbine blade15 Sep 2026US 12,734,777 B2Lm Wind Power A/S
- Hybrid pultrusion plates for a conductive spar cap of a wind turbine blade11 Aug 2026US 12,704,110 B2Lm Wind Power A/S
- Segmented wind turbine blade with spar caps16 Jun 2026US 12,655,823 B2Lm Wind Power A/S
- Interlayer, spar cap and wind turbine blade26 May 2026US 12,638,001 B2Lm Wind Power A/S
- Web, a wind turbine blade and a manufacturing method thereof19 May 2026US 12,631,160 B2Envision Energy CO.,LTD
- Spar cap, wind turbine blade as well as method of manufacturing a spar cap8 Oct 2026US 2026/0309124 A1Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Pultruded plank, spar cap, wind turbine blade, and pultrusion preparation process24 Sep 2026US 2026/0286932 A1Owens Corning Intellectual Capital, LLC
- A pitch controlled wind turbine10 Sep 2026US 2026/0266256 A1Vestas Wind Systems A/S
- Mold assembly for manufacturing a composite part and related methods3 Sep 2026US 2026/0257433 A1Lm Wind Power A/S
- A wind turbine blade spar cap and a method for manufacturing a wind turbine blade spar cap27 Aug 2026US 2026/0251117 A1Vestas Wind Systems A/S
Most cited
By later US patents
- Spar cap assembly for a wind turbine blade with a lightning protection system3US 12,129,832 B2Lm Wind Power A/S · 2024
- Misaligned spar cap scarf joint connection2US 10,920,743 B2General Electric Company · 2021
- Wind turbine blade spar cap, wind turbine blade and wind turbine1US 11,441,536 B2Siemens Gamesa Renewable Energy A/S · 2022