F16C 33/6688
Lubricant compositions or properties
Official title: {Lubricant compositions or properties, e.g. viscosity}
F16C33/6688 (Lubricant compositions or properties) appears on 131 US grants and 137 published applications in this corpus.
Search patents in F16C- Granted patents
- 131
- Published applications
- 137
- Assignees
- 94
- Inventors
- 369
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 0 |
| 2003 | 1 | 4 |
| 2004 | 2 | 1 |
| 2005 | 3 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 7 |
| 2008 | 0 | 3 |
| 2009 | 2 | 7 |
| 2010 | 2 | 3 |
| 2011 | 5 | 7 |
| 2012 | 2 | 4 |
| 2013 | 6 | 3 |
| 2014 | 5 | 5 |
| 2015 | 5 | 9 |
| 2016 | 6 | 6 |
| 2017 | 4 | 6 |
| 2018 | 5 | 7 |
| 2019 | 7 | 8 |
| 2020 | 7 | 10 |
| 2021 | 11 | 10 |
| 2022 | 8 | 9 |
| 2023 | 6 | 10 |
| 2024 | 7 | 6 |
| 2025 | 5 | 4 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bearing assembly for an electric motor, and electric motor16 Jun 2026US 12,658,758 B2Aktiebolaget Skf
- Rolling bearing24 Mar 2026US 12,584,523 B2Aktiebolaget Skf
- Rotating electric machine, electric wheel, and vehicle3 Mar 2026US 12,567,779 B2Hitachi, Ltd.
- Diesters of polyethylene oxide as lubricant base oils17 Feb 2026US 12,553,006 B2Vantage Santolubes Research LLC
- Lubricant composition comprising carbon nanotubes28 Oct 2025US 12,454,655 B2Kyodo Yushi Co., Ltd.
- Rolling bearing30 Jul 2026US 2026/0218754 A1Nakanishi Metal Works Co., Ltd.
- Method for reducing friction in a rolling bearing, in particular in a vehicle wheel hub bearing, and associated rolling bearing5 Feb 2026US 2026/0036170 A1
- Bearing19 Jun 2025US 2025/0198462 A1
- Diesters of polyethylene oxide as lubricant base oils13 Mar 2025US 2025/0084338 A1Vantage Santolubes Research LLC
- Lubricant composition comprising carbon nanotubes16 Jan 2025US 2025/0019613 A1Kyodo Yushi Co., Ltd.
Most cited
By later US patents
- Magnetorheological transmission device67US 9,091,309 B2INVENTUS Engineering GmbH · 2015
- Disk drive with actuator pivot bearing having a surface coating inhibiting lubricant migration51US 8,553,366 B1Western Digital Technologies, Inc. · 2013
- Oil-free liquid chiller44US 6,176,092 B1American Standard Inc. · 2001
- Oil-free liquid chiller41US 6,564,560 B2American Standard International Inc. · 2003
- Tapered roller bearing32US 6,086,261 ANtn Corporation · 2000