F16C 27/04
Ball or roller bearings
Official title: Ball or roller bearings, e.g. with resilient rolling bodies
F16C27/04 (Ball or roller bearings) appears on 868 US grants and 696 published applications in this corpus.
Search patents in F16C- Granted patents
- 868
- Published applications
- 696
- Assignees
- 346
- Inventors
- 1,624
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 17 | 0 |
| 1986 | 1 | 0 |
| 1987 | 15 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 13 | 0 |
| 1991 | 28 | 0 |
| 1992 | 16 | 0 |
| 1993 | 12 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 13 | 2 |
| 2002 | 14 | 16 |
| 2003 | 15 | 15 |
| 2004 | 7 | 15 |
| 2005 | 11 | 9 |
| 2006 | 9 | 19 |
| 2007 | 7 | 19 |
| 2008 | 13 | 24 |
| 2009 | 20 | 25 |
| 2010 | 18 | 26 |
| 2011 | 16 | 30 |
| 2012 | 32 | 25 |
| 2013 | 23 | 38 |
| 2014 | 32 | 31 |
| 2015 | 30 | 36 |
| 2016 | 32 | 43 |
| 2017 | 39 | 44 |
| 2018 | 46 | 50 |
| 2019 | 45 | 25 |
| 2020 | 36 | 44 |
| 2021 | 40 | 39 |
| 2022 | 35 | 36 |
| 2023 | 27 | 22 |
| 2024 | 20 | 26 |
| 2025 | 24 | 20 |
| 2026 | 18 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bearing support having arcuate damper elements25 Aug 2026US 12,716,367 B1Pratt & Whitney Canada Corp.
- Swivel4 Aug 2026US 12,698,800 B2Rotojar Innovations Limited
- Roller bearing comprising an oil film compression damper of modifiable length14 Jul 2026US 12,680,473 B2Safran Aircraft Engines
- Aircraft turbomachine comprising a bearing support having an improved design2 Jun 2026US 12,644,392 B2Safran Helicopter Engines
- Aircraft ball bearing squirrel cage with beams with enlarged ends26 May 2026US 12,637,960 B2Pratt & Whitney Canada Corp.
- Aircraft ball bearing squirrel cage with beams with enlarged ends10 Sep 2026US 2026/0266200 A1Pratt & Whitney Canada Corp.
- Bearing-shaft assembly and method for operating a bearing-shaft assembly3 Sep 2026US 2026/0258838 A1Gtw - Dr. Gebert Technologie Und Walzlager GmbH
- Squeeze film damper27 Aug 2026US 2026/0251200 A1Gleitlagertechnik Weissbacher GmbH
- Device for centering and rotationally guiding a shaft line of a turbine engine, and turbine engine13 Aug 2026US 2026/0235045 A1Safran Helicopter Engines
- Vibration Isolation Structure16 Jul 2026US 2026/0201937 A1Nok Corporation
Most cited
By later US patents
- Bearing damper system211US 4,289,360 AGeneral Electric Company · 1981
- Bearing support108US 4,872,767 AGeneral Electric Company · 1989
- Thrust bearing damping means83US 4,084,861 AUnited Technologies Corporation · 1978
- Retaining ring82US 4,364,615 AThe Bendix Corporation · 1982
- Fluid dampened support having variable stiffness and damping79US 5,603,574 AKMC, Inc. · 1997