F02C 7/12
Cooling of plants
Official title: Cooling of plants (of component parts, see the relevant subclasses, e.g. F01D; cooling of engines in general F01P)
F02C7/12 (Cooling of plants) appears on 4,247 US grants and 4,648 published applications in this corpus.
Search patents in F02C- Granted patents
- 4,247
- Published applications
- 4,648
- Assignees
- 520
- Inventors
- 6,316
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 11 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 11 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 8 | 0 |
| 1984 | 11 | 0 |
| 1985 | 19 | 0 |
| 1986 | 12 | 0 |
| 1987 | 16 | 0 |
| 1988 | 19 | 0 |
| 1989 | 15 | 0 |
| 1990 | 16 | 0 |
| 1991 | 16 | 0 |
| 1992 | 23 | 0 |
| 1993 | 23 | 0 |
| 1994 | 22 | 0 |
| 1995 | 27 | 0 |
| 1996 | 17 | 0 |
| 1997 | 25 | 0 |
| 1998 | 29 | 0 |
| 1999 | 20 | 0 |
| 2000 | 34 | 0 |
| 2001 | 51 | 18 |
| 2002 | 69 | 46 |
| 2003 | 62 | 46 |
| 2004 | 44 | 64 |
| 2005 | 40 | 66 |
| 2006 | 49 | 55 |
| 2007 | 30 | 52 |
| 2008 | 39 | 60 |
| 2009 | 28 | 81 |
| 2010 | 55 | 98 |
| 2011 | 42 | 86 |
| 2012 | 72 | 114 |
| 2013 | 70 | 160 |
| 2014 | 80 | 192 |
| 2015 | 117 | 255 |
| 2016 | 125 | 411 |
| 2017 | 197 | 396 |
| 2018 | 283 | 359 |
| 2019 | 334 | 314 |
| 2020 | 399 | 311 |
| 2021 | 333 | 221 |
| 2022 | 302 | 247 |
| 2023 | 275 | 208 |
| 2024 | 258 | 287 |
| 2025 | 288 | 311 |
| 2026 | 184 | 190 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Turbine engine with a blade assembly having a set of cooling conduits6 Oct 2026US 12,753,696 B2General Electric Company
- Turbine engine cleaning and protection system6 Oct 2026US 12,753,718 B2Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Dilute combustion of hydrogen in retrofitted gas turbine engines6 Oct 2026US 12,753,722 B2University of Florida Research Foundation, Inc.
- Inducer assembly for a turbine engine29 Sep 2026US 12,746,491 B2General Electric Company
- Cooling of components29 Sep 2026US 12,747,697 B1ROLLS-ROYCE plc
- Turbine engine component with a cooling aperture8 Oct 2026US 2026/0309042 A1General Electric Company
- Liquid hydrogen pumping system8 Oct 2026US 2026/0309078 A1Eaton Intelligent Power Limited
- Gas turbine engine with improved heat management8 Oct 2026US 2026/0309080 A1ROLLS-ROYCE plc
- Gas turbine engine comprising an ejector8 Oct 2026US 2026/0309081 A1ROLLS-ROYCE plc
- Gas turbine engine having cooling systems8 Oct 2026US 2026/0309082 A1General Electric Company
Most cited
By later US patents
- Fuel and oil heat management system for a gas turbine engine337US 4,696,156 AUnited Technologies Corporation · 1987
- Planar membrane deoxygenator331US 6,709,492 B1United Technologies Corporation · 2004
- Intercooled turbine blade cooling air feed system324US 5,317,877 AGeneral Electric Company · 1994
- Supercharging system for gas turbines259US 7,065,953 B1Enhanced Turbine Output Holding, LLC · 2006
- Turbine chilling for oil field power generation244US 9,995,218 B2U.S. Well Services, LLC · 2018