F03D 9/19
Storing chemical energy
Official title: storing chemical energy, e.g. using electrolysis
F03D9/19 (Storing chemical energy) appears on 59 US grants and 137 published applications in this corpus.
Search patents in F03D- Granted patents
- 59
- Published applications
- 137
- Assignees
- 47
- Inventors
- 188
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 4 |
| 2007 | 1 | 1 |
| 2008 | 3 | 8 |
| 2009 | 0 | 5 |
| 2010 | 0 | 4 |
| 2011 | 3 | 5 |
| 2012 | 4 | 5 |
| 2013 | 4 | 6 |
| 2014 | 4 | 4 |
| 2015 | 2 | 3 |
| 2016 | 2 | 2 |
| 2017 | 3 | 3 |
| 2018 | 3 | 4 |
| 2019 | 2 | 3 |
| 2020 | 3 | 3 |
| 2021 | 0 | 3 |
| 2022 | 1 | 10 |
| 2023 | 0 | 13 |
| 2024 | 6 | 21 |
| 2025 | 12 | 17 |
| 2026 | 1 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wind power generation apparatus and method17 Mar 2026US 12,577,938 B2China Petroleum & Chemical Corporation
- Set of units for making a wind turbine nacelle21 Oct 2025US 12,448,950 B2Vestas Wind Systems A/S
- Wind turbine with integrated hydrogen generation9 Sep 2025US 12,410,775 B2Vestas Wind Systems A/S
- Safety system for a wind turbine system including hydrogen production29 Jul 2025US 12,372,058 B2Siemens Gamesa Renewable Energy A/S
- Wind turbine and method1 Jul 2025US 12,348,041 B2Siemens Gamesa Renewable Energy A/S
- Energy recovery system and related method of recovering energy10 Sep 2026US 2026/0266267 A1Siemens Energy Global GmbH & Co. KG
- Autonomous roaming offshore wind turbine27 Aug 2026US 2026/0249962 A1Alliance for Sustainable Energy, LLC
- Battery arrangement for stand-alone wind turbine27 Aug 2026US 2026/0250870 A1Siemens Energy Global GmbH & Co. KG
- Energy supply system for coupling to a wind turbine used in island mode, and method for supplying the wind turbine with solar energy27 Aug 2026US 2026/0254396 A1Siemens Energy Global GmbH & Co. KG
- Integrative system for centralised offshore hydrogen production in conjunction with a floating generation and storage unit20 Aug 2026US 2026/0243230 A1Siemens Energy Global GmbH & Co. KG
Most cited
By later US patents
- Wind farm generation scheme utilizing electrolysis to create gaseous fuel for a constant output generator112US 5,592,028 A1997
- Electric power generation84US 4,274,010 ASir Henry Lawson-Tancred, Sons & Co. Ltd. · 1981
- Wind power system74US 7,453,164 B2Polestar, Ltd. · 2008
- Wind turbine tower for storing hydrogen and energy62US 7,471,010 B1Alliance for Sustainable Energy, LLC · 2008
- Process of converting wind energy to elemental hydrogen and apparatus therefor50US 4,335,093 ATemple University · 1982