F01D 25/125
Of bearings
Official title: {of bearings}
F01D25/125 (Of bearings) appears on 402 US grants and 372 published applications in this corpus.
Search patents in F01D- Granted patents
- 402
- Published applications
- 372
- Assignees
- 119
- Inventors
- 878
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 3 |
| 2003 | 4 | 2 |
| 2004 | 3 | 5 |
| 2005 | 5 | 6 |
| 2006 | 5 | 5 |
| 2007 | 4 | 9 |
| 2008 | 3 | 11 |
| 2009 | 3 | 10 |
| 2010 | 9 | 8 |
| 2011 | 7 | 6 |
| 2012 | 11 | 5 |
| 2013 | 8 | 20 |
| 2014 | 7 | 13 |
| 2015 | 14 | 24 |
| 2016 | 8 | 30 |
| 2017 | 20 | 25 |
| 2018 | 29 | 20 |
| 2019 | 35 | 27 |
| 2020 | 35 | 31 |
| 2021 | 27 | 21 |
| 2022 | 26 | 19 |
| 2023 | 22 | 21 |
| 2024 | 28 | 25 |
| 2025 | 22 | 16 |
| 2026 | 12 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bearing support having arcuate damper elements25 Aug 2026US 12,716,367 B1Pratt & Whitney Canada Corp.
- Bearing chamber with mapped thermal heat exchange fins30 Jun 2026US 12,669,069 B2Rtx Corporation
- Magnetic-foil bearing with cooling system2 Jun 2026US 12,644,490 B2Rtx Corporation
- Turbine unit for a supercharging device26 May 2026US 12,637,992 B2BorgWarner Inc.
- Open rotor nose cone ram air heat exchanger with exhaust of cooling air through static structure5 May 2026US 12,618,367 B2Rtx Corporation
- Fueldraulic heat management system30 Jul 2026US 2026/0218659 A1ROLLS-ROYCE plc
- Aircraft turbine engine comprising a heat exchange system23 Jul 2026US 2026/0210289 A1Safran
- Gas turbine engines including thermal management systems with recirculating fuel circuits and related methods2 Jul 2026US 2026/0185484 A1General Electric Company
- Open rotor nose cone ram air heat exchanger with exhaust of cooling air through static structure7 May 2026US 2026/0126010 A1Rtx Corporation
- Turbocharger housing and turbocharger23 Apr 2026US 2026/0110308 A1BorgWarner Inc.
Most cited
By later US patents
- Aircraft combination engines thermal management system93US 7,836,680 B2United Technologies Corporation · 2010
- Gas turbine engine with an air cooled bearing88US 7,562,519 B1Florida Turbine Technologies, Inc. · 2009
- Air cooler for providing buffer air to a bearing compartment83US 4,645,415 AUnited Technologies Corporation · 1987
- Cooling air system for mid turbine frame73US 8,371,127 B2Pratt & Whitney Canada Corp. · 2013
- Method and apparatus for operating gas turbine engine heat exchangers71US 8,387,362 B22013