F02C 7/27
Fluid drives
Official title: Fluid drives (turbine starters F02C7/277)
F02C7/27 (Fluid drives) appears on 135 US grants and 121 published applications in this corpus.
Search patents in F02C- Granted patents
- 135
- Published applications
- 121
- Assignees
- 65
- Inventors
- 313
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 4 |
| 2004 | 3 | 0 |
| 2005 | 0 | 4 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 3 | 4 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 5 |
| 2014 | 2 | 3 |
| 2015 | 3 | 8 |
| 2016 | 3 | 8 |
| 2017 | 3 | 10 |
| 2018 | 9 | 17 |
| 2019 | 8 | 9 |
| 2020 | 15 | 13 |
| 2021 | 6 | 7 |
| 2022 | 9 | 5 |
| 2023 | 6 | 2 |
| 2024 | 6 | 6 |
| 2025 | 7 | 5 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Propellant cartridge ignitor22 Sep 2026US 12,742,421 B1Rtx Corporation
- System and method for calibrating hydraulic starters for turbomachines7 Jul 2026US 12,674,421 B2GE Vernova Infrastructure Technology LLC
- Self-sacrifice battery for starter ignition of small engines2 Jun 2026US 12,644,418 B1Rtx Corporation
- Multi-modal gas-turbine engine starting10 Mar 2026US 12,571,350 B2ROLLS-ROYCE plc
- Pneumatic start system with integrated electric generator powered by engine environmental control bleed supply10 Feb 2026US 12,546,260 B2Hamilton Sundstrand Corporation
- Start mechanism for small engines8 Oct 2026US 2026/0309087 A1Rtx Corporation
- Method of operating a turbine engine including an air turbine starter20 Aug 2026US 2026/0243201 A1Unison Industries, LLC
- System and method for calibrating hydraulic starters for turbomachines26 Mar 2026US 2026/0085637 A1GE Infrastructure Technology LLC
- Pneumatic start system with integrated electric generator powered by engine environmental control bleed supply13 Nov 2025US 2025/0347253 A1Hamilton Sundstrand Corporation
- Turbine engine including an air turbine starter29 May 2025US 2025/0172094 A1Unison Industries, LLC
Most cited
By later US patents
- Aircraft engine starting and emergency power generating system275US 4,979,362 ASundstrand Corporation · 1990
- Device and method for gas turbine unlocking112US 9,845,730 B2Nuovo Pignone S.p.A. · 2017
- Power transmission arrangement58US 7,698,884 B2ROLLS-ROYCE plc · 2010
- Power unit fuel pressurization system56US 5,184,458 A1993
- Emergency power unit42US 4,777,793 AAllied-Signal Inc. · 1988