F05D 2260/902
Using frictional mechanical forces
Official title: using frictional mechanical forces
F05D2260/902 (Using frictional mechanical forces) appears on 55 US grants and 60 published applications in this corpus.
Search patents in F05D- Granted patents
- 55
- Published applications
- 60
- Assignees
- 34
- Inventors
- 114
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 8 |
| 2017 | 4 | 7 |
| 2018 | 3 | 4 |
| 2019 | 4 | 4 |
| 2020 | 7 | 4 |
| 2021 | 1 | 2 |
| 2022 | 2 | 4 |
| 2023 | 5 | 3 |
| 2024 | 7 | 6 |
| 2025 | 6 | 7 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Neutral turbine gearbox system and method18 Aug 2026US 12,709,967 B2Signal Power Group Operating LLC
- Multi-speed turbine reduction gearbox system and method18 Aug 2026US 12,709,968 B2Signal Power Group Operating LLC
- Gas turbine engine having a hydraulic fan brake4 Aug 2026US 12,698,724 B2General Electric Company
- Aircraft propulsion system with auxiliary turbine system7 Jul 2026US 12,674,411 B2Rtx Corporation
- Unidirectional fan brake for a gas turbine engine24 Mar 2026US 12,584,446 B2General Electric Company
- Aeronautical propulsion system23 Jul 2026US 2026/0210313 A1Safran Aircraft Engines
- Windmilling locking systems for gas turbine engines28 May 2026US 2026/0146563 A1Pratt & Whitney Canada Corp.
- Gas turbine engine having a hydraulic fan brake18 Sep 2025US 2025/0290430 A1General Electric Company
- Multi-speed turbine reduction gearbox system and method21 Aug 2025US 2025/0264009 A1Signal Power Group Operating LLC
- Aircraft propulsion system with auxiliary turbine system3 Apr 2025US 2025/0109707 A1Rtx Corporation
Most cited
By later US patents
- Bidirectional thrust apparatus, system, and method20US 11,142,433 B2Vita Inclinata Technologies, Inc. · 2021
- Gas storage power station19US 7,073,335 B2ALSTOM Technology Ltd · 2006
- Synchronizing stationary clutch of compression braking with a two spool gas turbine engine18US 7,185,496 B2Honeywell International Inc. · 2007
- Systems and methods for changing a speed of a compressor boost stage in a gas turbine18US 9,328,667 B2Pratt & Whitney Canada Corp. · 2016
- Anti-windmilling system for a gas turbine engine15US 10,526,913 B2United Technologies Corporation · 2020