F01D 25/166
Sliding contact bearing
Official title: {Sliding contact bearing (gas bearings F01D25/22)}
F01D25/166 (Sliding contact bearing) appears on 416 US grants and 380 published applications in this corpus.
Search patents in F01D- Granted patents
- 416
- Published applications
- 380
- Assignees
- 159
- Inventors
- 835
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 7 | 7 |
| 2003 | 3 | 3 |
| 2004 | 4 | 7 |
| 2005 | 8 | 5 |
| 2006 | 1 | 5 |
| 2007 | 4 | 6 |
| 2008 | 3 | 5 |
| 2009 | 1 | 6 |
| 2010 | 5 | 16 |
| 2011 | 7 | 9 |
| 2012 | 10 | 11 |
| 2013 | 10 | 20 |
| 2014 | 15 | 24 |
| 2015 | 10 | 26 |
| 2016 | 18 | 25 |
| 2017 | 34 | 31 |
| 2018 | 26 | 33 |
| 2019 | 34 | 30 |
| 2020 | 45 | 30 |
| 2021 | 19 | 27 |
| 2022 | 32 | 17 |
| 2023 | 22 | 11 |
| 2024 | 16 | 15 |
| 2025 | 9 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gearboxes for aircraft gas turbine engines26 May 2026US 12,637,961 B2ROLLS-ROYCE plc
- Closed-loop cooling fluid circuit for magnetic bearings of an expander-compressor system24 Mar 2026US 12,584,420 B2Nuovo Pignone Tecnologie Srl
- Pressure control in a turboexpander23 Dec 2025US 12,503,955 B2Sapphire Technologies, Inc.
- Fan module equipped with an oil transfer device4 Nov 2025US 12,460,550 B2Safran Aircraft Engines
- Plain bearing for a planet gear of a mechanical reduction gear with silent operation3 Jun 2025US 12,320,264 B2Safran Transmission Systems
- Turbomachine27 Aug 2026US 2026/0251078 A1Kawasaki Jukogyo Kabushiki Kaisha
- Thrust bearings to support axial thrust in pumps2 Jul 2026US 2026/0185463 A1General Electric Company
- Gearboxes for aircraft gas turbine engines2 Jul 2026US 2026/0185464 A1ROLLS-ROYCE plc
- Geared turbomachine fan and compressor rotation30 Apr 2026US 2026/0117724 A1Rtx Corporation
- Plain bearing arrangement for an aircraft engine and aircraft engine having a plain bearing arrangement2 Oct 2025US 2025/0305425 A1
Most cited
By later US patents
- Face seal assembly118US 6,325,380 B1Feodor Burgmann Dichtungswerke GmbH & Co. · 2001
- Bearing system for a turbocharger94US 7,189,005 B2BorgWarner Inc. · 2007
- Turbocharger integrated bearing system81US 6,017,184 AAllied-Signal Inc. · 2000
- Bearing cooling arrangement for air cycle machine65US 5,113,670 AUnited Technologies Corporation · 1992
- Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system57US 10,570,777 B2Echogen Power Systems, LLC · 2020