F02C 7/36
Power transmission arrangements between the different shafts of the gas turbine plant
Official title: Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user ({F02C3/107 - F02C3/13 and} F02C7/32 take precedence; couplings for transmitting rotation F16D; gearing in general F16H)
F02C7/36 (Power transmission arrangements between the different shafts of the gas turbine plant) appears on 2,607 US grants and 3,146 published applications in this corpus.
Search patents in F02C- Granted patents
- 2,607
- Published applications
- 3,146
- Assignees
- 222
- Inventors
- 2,559
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 10 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 6 |
| 2004 | 7 | 11 |
| 2005 | 6 | 11 |
| 2006 | 8 | 13 |
| 2007 | 2 | 24 |
| 2008 | 6 | 31 |
| 2009 | 17 | 36 |
| 2010 | 23 | 49 |
| 2011 | 26 | 24 |
| 2012 | 34 | 52 |
| 2013 | 43 | 116 |
| 2014 | 78 | 108 |
| 2015 | 77 | 139 |
| 2016 | 42 | 202 |
| 2017 | 95 | 229 |
| 2018 | 137 | 235 |
| 2019 | 234 | 219 |
| 2020 | 251 | 330 |
| 2021 | 272 | 281 |
| 2022 | 274 | 221 |
| 2023 | 270 | 234 |
| 2024 | 269 | 191 |
| 2025 | 204 | 199 |
| 2026 | 133 | 182 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Cooling of components29 Sep 2026US 12,747,697 B1ROLLS-ROYCE plc
- Aircraft hybrid electric propulsion system8 Oct 2026US 2026/0307813 A1Pratt & Whitney Canada Corp.
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- Turboshaft gearbox output gear arrangement with torque measurement system8 Oct 2026US 2026/0309089 A1Pratt & Whitney Canada Corp.
- Double offset reduction gearbox with motor drive for turboprop8 Oct 2026US 2026/0309090 A1Pratt & Whitney Canada Corp.
- Midshaft Rating For Turbomachine Engines8 Oct 2026US 2026/0309091 A1GE Avio S. r. l.
Most cited
By later US patents
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- Geared drive system for a bladed propulsor402US 5,466,198 AUnited Technologies Corporation · 1995
- Flexible shaft for gas turbine engine391US 7,926,260 B2United Technologies Corporation · 2011
- Epicyclic gear train for turbo fan engine388US 8,205,432 B2United Technologies Corporation · 2012