F02C 9/28
Regulating systems responsive to plant or ambient parameters
Official title: Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed (F02C9/30 - F02C9/38, F02C9/44 take precedence)
F02C9/28 (Regulating systems responsive to plant or ambient parameters) appears on 1,604 US grants and 1,559 published applications in this corpus.
Search patents in F02C- Granted patents
- 1,604
- Published applications
- 1,559
- Assignees
- 291
- Inventors
- 2,942
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 12 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 23 | 0 |
| 1985 | 17 | 0 |
| 1986 | 15 | 0 |
| 1987 | 8 | 0 |
| 1988 | 14 | 0 |
| 1989 | 12 | 0 |
| 1990 | 4 | 0 |
| 1991 | 13 | 0 |
| 1992 | 19 | 0 |
| 1993 | 10 | 0 |
| 1994 | 20 | 0 |
| 1995 | 10 | 0 |
| 1996 | 6 | 0 |
| 1997 | 14 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 14 | 3 |
| 2002 | 20 | 25 |
| 2003 | 24 | 34 |
| 2004 | 39 | 40 |
| 2005 | 23 | 38 |
| 2006 | 31 | 30 |
| 2007 | 28 | 35 |
| 2008 | 19 | 25 |
| 2009 | 23 | 39 |
| 2010 | 25 | 54 |
| 2011 | 29 | 33 |
| 2012 | 25 | 44 |
| 2013 | 43 | 61 |
| 2014 | 41 | 64 |
| 2015 | 43 | 72 |
| 2016 | 62 | 95 |
| 2017 | 74 | 115 |
| 2018 | 83 | 108 |
| 2019 | 89 | 77 |
| 2020 | 79 | 85 |
| 2021 | 85 | 102 |
| 2022 | 116 | 60 |
| 2023 | 89 | 98 |
| 2024 | 94 | 78 |
| 2025 | 84 | 82 |
| 2026 | 51 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fueling schedule29 Sep 2026US 12,747,707 B2ROLLS-ROYCE plc
- Anti-stall system with a fuel cell22 Sep 2026US 12,742,425 B2General Electric Company
- Liquid fluid systems for turbine engines1 Sep 2026US 12,723,521 B2General Electric Company
- Fuel, communications, and power connection systems and related methods1 Sep 2026US 12,723,942 B2BJ Energy Solutions, LLC
- Gas turbine engine25 Aug 2026US 12,716,385 B2GE Avio S. r. l.
- Control device for gas turbine, gas turbine facility, control method for gas turbine, and control program for gas turbine8 Oct 2026US 2026/0309096 A1Mitsubishi Heavy Industries, Ltd.
- Gas turbine system and method for modifying gas turbine system8 Oct 2026US 2026/0309098 A1IHI Corporation
- Combustion system and control method8 Oct 2026US 2026/0309101 A1IHI Corporation
- Fuel, communications, and power connection systems and related methods8 Oct 2026US 2026/0309574 A1BJ Energy Solutions, LLC
- High efficiency power production methods, assemblies, and systems1 Oct 2026US 2026/0298097 A18 Rivers Capital, LLC
Most cited
By later US patents
- Dual orifice bypass system for dual-fuel gas turbine181US 6,145,318 AGeneral Electric Company · 2000
- Modular fuel conditioning system175US 6,901,735 B2Pipeline Controls, Inc. · 2005
- Aircraft fuel system172US 9,512,783 B2Hamilton Sundstrand Corporation · 2016
- Compressor control device, compressor control system, and compressor control method130US 10,584,645 B2Mitsubishi Heavy Industries Compressor Corporation · 2020
- Systems and methods for monitoring gas turbine systems having exhaust gas recirculation126US 9,617,914 B2ExxonMobil Upstream Research Company · 2017