F02C 3/305
Increasing the power, speed, torque or efficiency of a gas turbine or
Official title: {Increasing the power, speed, torque or efficiency of a gas turbine or the thrust of a turbojet engine by injecting or adding water, steam or other fluids (F01K21/04 takes precedence)}
F02C3/305 (Increasing the power, speed, torque or efficiency of a gas turbine or) appears on 249 US grants and 280 published applications in this corpus.
Search patents in F02C- Granted patents
- 249
- Published applications
- 280
- Assignees
- 91
- Inventors
- 481
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 13 | 7 |
| 2003 | 6 | 3 |
| 2004 | 5 | 9 |
| 2005 | 8 | 10 |
| 2006 | 7 | 7 |
| 2007 | 5 | 6 |
| 2008 | 2 | 6 |
| 2009 | 4 | 16 |
| 2010 | 8 | 11 |
| 2011 | 4 | 10 |
| 2012 | 8 | 9 |
| 2013 | 6 | 10 |
| 2014 | 9 | 12 |
| 2015 | 8 | 10 |
| 2016 | 4 | 12 |
| 2017 | 10 | 15 |
| 2018 | 9 | 9 |
| 2019 | 8 | 9 |
| 2020 | 8 | 7 |
| 2021 | 5 | 6 |
| 2022 | 10 | 4 |
| 2023 | 6 | 14 |
| 2024 | 33 | 28 |
| 2025 | 30 | 38 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Partial exhaust condensation regenerator7 Jul 2026US 12,674,414 B2Rtx Corporation
- Steam injected inter-turbine burner engine16 Jun 2026US 12,655,788 B2Rtx Corporation
- Auxiliary boiler system for steam injection cycle engine2 Jun 2026US 12,644,410 B2Rtx Corporation
- Turbine engine including a steam system28 Apr 2026US 12,612,875 B2General Electric Company
- Offset core with side ejector nacelle nozzles17 Mar 2026US 12,577,904 B2Rtx Corporation
- Partial exhaust condensation regenerator1 Oct 2026US 2026/0298138 A1Rtx Corporation
- Hybrid turboshaft and solid oxide fuel cell propulsion system and related methods25 Jun 2026US 2026/0175983 A1The Boeing Company
- Pure oxygen combustion three-fluid gas turbine for power generation18 Jun 2026US 2026/0168435 A1China University of Petroleum (East China)
- Cryogenic air separation enhanced gas turbine21 May 2026US 2026/0139621 A1Rtx Corporation
- Method for boosting a turbofan engine14 May 2026US 2026/0132758 A1
Most cited
By later US patents
- Solid-fueled power generation system with carbon dioxide sequestration and method therefor203US 6,148,602 ANorther Research & Engineering Corporation · 2000
- Method and apparatus for achieving power augmentation in gas turbines via wet compression161US 5,930,990 AThe Dow Chemical Company · 1999
- Exhaust gas recirculation type combined plant144US 6,598,402 B2Hitachi, Ltd. · 2003
- Exhaust gas recirculation type combined plant109US 6,256,976 B1Hitachi, Ltd. · 2001
- Exhaust gas recirculation type combined plant96US 6,363,709 B2Hitachi, Ltd. · 2002