F16C 33/3706
With concave surfaces conforming to the shape of the rolling elements
Official title: {with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements}
F16C33/3706 (With concave surfaces conforming to the shape of the rolling elements) appears on 158 US grants and 144 published applications in this corpus.
Search patents in F16C- Granted patents
- 158
- Published applications
- 144
- Assignees
- 49
- Inventors
- 253
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 7 |
| 2002 | 7 | 9 |
| 2003 | 11 | 27 |
| 2004 | 16 | 14 |
| 2005 | 8 | 8 |
| 2006 | 10 | 7 |
| 2007 | 11 | 8 |
| 2008 | 5 | 3 |
| 2009 | 4 | 7 |
| 2010 | 2 | 6 |
| 2011 | 4 | 3 |
| 2012 | 3 | 2 |
| 2013 | 5 | 7 |
| 2014 | 6 | 5 |
| 2015 | 7 | 4 |
| 2016 | 4 | 8 |
| 2017 | 3 | 2 |
| 2018 | 4 | 2 |
| 2019 | 1 | 2 |
| 2020 | 3 | 5 |
| 2021 | 3 | 0 |
| 2022 | 2 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 2 |
| 2025 | 4 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mechanical roller bearing8 Sep 2026US 12,729,723 B2Safran Aircraft Engines
- Bearing19 May 2026US 12,631,211 B2Nippon Thompson Co., Ltd.
- Toroid separator with lubricant channels for ball bearings21 Apr 2026US 12,607,225 B2Aktiebolaget Skf
- Low wear toroid separator for ball bearings9 Dec 2025US 12,492,727 B2Aktiebolaget Skf
- Rolling bearing and intermediate piece therefor4 Nov 2025US 12,460,675 B2Liebherr-Components Biberach GmbH
- Low wear toroid separator for ball bearings3 Jul 2025US 2025/0215929 A1Aktiebolaget Skf
- Toroid separator with lubricant channels for ball bearings3 Jul 2025US 2025/0215930 A1Aktiebolaget Skf
- Separator for rolling element bearings6 Mar 2025US 2025/0075738 A1Aktiebolaget Skf
- Bearing9 Jan 2025US 2025/0012319 A1Nippon Thompson Co., Ltd.
- Mechanical roller bearing19 Dec 2024US 2024/0418214 A1Safran Aircraft Engines
Most cited
By later US patents
- Linear motion rolling guide unit56US 5,927,858 ANippon Thompson Co., Ltd. · 1999
- Solid-lubricated bearing assembly47US 5,066,145 ATribology Systems, Inc. · 1991
- Ball screw having spacers30US 6,176,149 B1Tsubaki Nakashima Co., Ltd. · 2001
- Slew ring bearing29US 4,906,113 AQuintette Coal Limited · 1990
- Ball screw having spacers28US 6,095,009 ATsubaki Nakashima Co., Ltd. · 2000