F02C 7/14
Of fluids in the plant
Official title: of fluids in the plant {, e.g. lubricant or fuel (F02C7/185 takes precedence)}
F02C7/14 (Of fluids in the plant) appears on 1,832 US grants and 2,056 published applications in this corpus.
Search patents in F02C- Granted patents
- 1,832
- Published applications
- 2,056
- Assignees
- 360
- Inventors
- 2,974
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 13 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 9 | 0 |
| 1992 | 13 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 13 | 0 |
| 1996 | 9 | 0 |
| 1997 | 13 | 0 |
| 1998 | 13 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 21 | 6 |
| 2002 | 31 | 21 |
| 2003 | 28 | 18 |
| 2004 | 21 | 36 |
| 2005 | 22 | 37 |
| 2006 | 23 | 34 |
| 2007 | 18 | 28 |
| 2008 | 20 | 33 |
| 2009 | 14 | 48 |
| 2010 | 34 | 41 |
| 2011 | 18 | 35 |
| 2012 | 35 | 63 |
| 2013 | 31 | 83 |
| 2014 | 32 | 92 |
| 2015 | 49 | 93 |
| 2016 | 57 | 145 |
| 2017 | 83 | 142 |
| 2018 | 101 | 130 |
| 2019 | 119 | 132 |
| 2020 | 147 | 129 |
| 2021 | 139 | 77 |
| 2022 | 114 | 114 |
| 2023 | 124 | 104 |
| 2024 | 136 | 173 |
| 2025 | 162 | 149 |
| 2026 | 79 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dilute combustion of hydrogen in retrofitted gas turbine engines6 Oct 2026US 12,753,722 B2University of Florida Research Foundation, Inc.
- Combustion of fuel22 Sep 2026US 12,742,417 B2ROLLS-ROYCE plc
- Recirculation of fuel22 Sep 2026US 12,742,418 B2ROLLS-ROYCE plc
- System for cooling a liquid for lubricating an aircraft turbomachine15 Sep 2026US 12,736,008 B2Safran
- Systems and methods for operating an aircraft engine using multiple fuel types15 Sep 2026US 12,736,012 B2Pratt & Whitney Canada Corp.
- Water cooled exhaust duct1 Oct 2026US 2026/0298137 A1Rtx Corporation
- System and method for cooling an aircraft turbine engine24 Sep 2026US 2026/0286891 A1Safran Aircraft Engines
- Cryogenic fuel distribution systems including heat exchangers and related methods24 Sep 2026US 2026/0286892 A1GE Avio S. r. l.
- Thermal management system for an engine24 Sep 2026US 2026/0286896 A1General Electric Company
- Systems and apparatus to lubricate a gas turbine engine via an external pressure source17 Sep 2026US 2026/0275907 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
- 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
- Extracted, cooled, compressed/intercooled, cooling/ combustion air for a gas turbine engine211US 6,050,080 AGeneral Electric Company · 2000