F03D 9/22
The apparatus producing heat
Official title: the apparatus producing heat
F03D9/22 (The apparatus producing heat) appears on 72 US grants and 66 published applications in this corpus.
Search patents in F03D- Granted patents
- 72
- Published applications
- 66
- Assignees
- 39
- Inventors
- 142
- Latest grant
- 18 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 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 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 2 | 2 |
| 2010 | 1 | 4 |
| 2011 | 2 | 5 |
| 2012 | 1 | 5 |
| 2013 | 1 | 3 |
| 2014 | 3 | 7 |
| 2015 | 2 | 3 |
| 2016 | 4 | 7 |
| 2017 | 6 | 4 |
| 2018 | 3 | 2 |
| 2019 | 3 | 2 |
| 2020 | 6 | 3 |
| 2021 | 0 | 4 |
| 2022 | 4 | 4 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and method of utilizing thermal energy using multi fluid direct contact hydraulic cycles18 Jun 2024US 12,012,873 B2
- Wind power consumption method of virtual power plant with consideration of comprehensive demand responses of electrical loads and heat loads28 May 2024US 11,994,111 B2North China Electric Power University
- System for supplying electronic power20 Sep 2022US 11,448,190 B2
- Apparatus and method of utilizing thermal energy using multi fluid direct contact hydraulic cycles26 Jul 2022US 11,396,829 B2
- Wind turbine12 Jul 2022US 11,384,734 B1
- A heating system that produces heat from a source of rotational motion13 Feb 2025US 2025/0052431 A1H2O Turbines Ltd.
- Low-power direct air carbon capture system8 Jun 2023US 2023/0173428 A1
- Apparatus and method of utilizing thermal energy using multi fluid direct contact hydraulic cycles13 Oct 2022US 2022/0325641 A1Boundary Energy Inc.
- Wind power consumption method of virtual power plant with consideration of comprehensive demand responses of electrical loads and heat loads22 Sep 2022US 2022/0299009 A1North China Electric Power University
- Ground heat exchanger and wind turbine22 Sep 2022US 2022/0299010 A1HC Properties Inc.
Most cited
By later US patents
- Wind-powered electricity generating system including wind energy storage195US 5,384,489 A1995
- Windmills106US 3,952,723 ABrowning Engineering Corporation · 1976
- Power plant and heat supply method68US 9,512,826 B2Kabushiki Kaisha Toshiba · 2016
- Heat pump operated by wind or other power means63US 4,304,103 AWorld Energy Systems Incorporated · 1981
- Windmill energy system62US 4,476,851 A1984