F16C 33/303
Of hybrid bearings
Official title: {of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements}
F16C33/303 (Of hybrid bearings) appears on 85 US grants and 95 published applications in this corpus.
Search patents in F16C- Granted patents
- 85
- Published applications
- 95
- Assignees
- 60
- Inventors
- 231
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 3 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 0 | 8 |
| 2014 | 6 | 3 |
| 2015 | 2 | 2 |
| 2016 | 4 | 4 |
| 2017 | 1 | 0 |
| 2018 | 4 | 9 |
| 2019 | 9 | 11 |
| 2020 | 6 | 9 |
| 2021 | 8 | 8 |
| 2022 | 5 | 2 |
| 2023 | 4 | 7 |
| 2024 | 1 | 4 |
| 2025 | 4 | 6 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft engine hybrid roller bearing4 Aug 2026US 12,698,801 B2Pratt & Whitney Canada Corp.
- Ceramic ball material comprising a band-portion over surface of a spherical portion, and method for manufacturing ceramic ball12 May 2026US 12,624,727 B2Niterra Materials Co., Ltd.
- Planetary gear for a transmission for an aircraft capable of hovering7 Oct 2025US 12,435,785 B2Leonardo S.P.A.
- Optimized ball bearing and method of designing an optimized ball bearing26 Aug 2025US 12,398,751 B2Aktiebolaget Skf
- Sliding member, and bearing, motor, and drive device using the same29 Jul 2025US 12,371,385 B2Kabushiki Kaisha Toshiba
- Method for manufacturing a hybrid rolling bearing, and hybrid rolling bearing8 Oct 2026US 2026/0309190 A1
- Electrical machine for a motor vehicle, comprising a piezoelectric roller28 May 2026US 2026/0149339 A1AUMOVIO Germany GmbH
- Sliding component30 Apr 2026US 2026/0117822 A1Nsk Ltd.
- Silicon nitride sintered body, wear-resistant member, bearing ball, and bearing18 Dec 2025US 2025/0382234 A1Niterra Materials Co., Ltd.
- Aircraft engine hybrid roller bearing11 Dec 2025US 2025/0377022 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Mixer having exposed clean-in-place bearing assemblies38US 5,779,359 AGeneral Signal Corporation · 1998
- Mixer system31US 5,758,965 AGeneral Signal Corporation · 1998
- Mixer systems28US 5,368,390 AGeneral Signal Corporation · 1994
- Rotating member supporting apparatus26US 4,634,300 AKabushiki Kaisha Toshiba · 1987
- Rolling bearings26US 5,672,014 ANsk Ltd. · 1997