F16C 21/00
Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary
Official title: Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement (F16C17/24, F16C19/52 take precedence)
F16C21/00 (Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary) appears on 545 US grants and 338 published applications in this corpus.
Search patents in F16C- Granted patents
- 545
- Published applications
- 338
- Assignees
- 291
- Inventors
- 1,002
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 14 | 0 |
| 1983 | 10 | 0 |
| 1984 | 13 | 0 |
| 1985 | 12 | 0 |
| 1986 | 4 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 9 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 4 | 0 |
| 1997 | 15 | 0 |
| 1998 | 17 | 0 |
| 1999 | 10 | 0 |
| 2000 | 15 | 0 |
| 2001 | 14 | 1 |
| 2002 | 12 | 11 |
| 2003 | 6 | 21 |
| 2004 | 20 | 17 |
| 2005 | 12 | 12 |
| 2006 | 13 | 13 |
| 2007 | 7 | 10 |
| 2008 | 8 | 16 |
| 2009 | 2 | 15 |
| 2010 | 6 | 9 |
| 2011 | 6 | 14 |
| 2012 | 14 | 10 |
| 2013 | 7 | 12 |
| 2014 | 7 | 15 |
| 2015 | 17 | 20 |
| 2016 | 17 | 22 |
| 2017 | 14 | 17 |
| 2018 | 16 | 24 |
| 2019 | 25 | 14 |
| 2020 | 20 | 19 |
| 2021 | 14 | 13 |
| 2022 | 13 | 11 |
| 2023 | 9 | 7 |
| 2024 | 11 | 7 |
| 2025 | 8 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gearbox assembly for a turbine engine19 May 2026US 12,631,140 B1General Electric Company
- Double-row ball bearing24 Mar 2026US 12,584,519 B2Schaeffler Technologies AG & Co. KG
- Motor bearing system3 Feb 2026US 12,542,467 B2Mazda Motor Corporation
- Mounting for bearing assembly30 Dec 2025US 12,510,114 B2Bowman International Limited
- Motor bearing system2 Dec 2025US 12,489,334 B2Mazda Motor Corporation
- Lubricating device for a planetary gear bearing of a planetary transmission, and planetary transmission2 Jul 2026US 2026/0185605 A1Schaeffler Technologies AG & Co. KG
- Bearing assembly11 Jun 2026US 2026/0160295 A1Safran Aircraft Engines
- Gearbox assembly for a turbine engine21 May 2026US 2026/0139624 A1General Electric Company
- Bearing support for telescoping mechanism spindle11 Dec 2025US 2025/0377003 A1
- Combined anti-friction/hydrodynamic common shaft bearing system and methods of application5 Jun 2025US 2025/0180067 A1MACO MACHINERY CO., INC. d/b/a ARTEC MACHINE SYSTEMS
Most cited
By later US patents
- Thin film treated drilling bit cones111US 4,054,426 A1977
- Axial bearing for a roller drill bit67US 4,190,301 AAktiebolaget Skf · 1980
- Electric power assisting steering apparatus65US 6,044,723 ANsk Ltd. · 2000
- Roller drill bit having radial-thrust pilot bushing incorporating anti-galling material60US 4,875,532 ADresser Industries, Inc. · 1989
- Motor-assisted turbochargers for internal combustion engines58US 6,032,466 ATurbodyne Systems, Inc. · 2000