A61C 1/181
Bearings or lubricating arrangements
Official title: {Bearings or lubricating arrangements, e.g. air-cushion bearings}
A61C1/181 (Bearings or lubricating arrangements) appears on 78 US grants and 75 published applications in this corpus.
Search patents in A61C- Granted patents
- 78
- Published applications
- 75
- Assignees
- 43
- Inventors
- 146
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 6 |
| 2003 | 2 | 5 |
| 2004 | 2 | 1 |
| 2005 | 0 | 7 |
| 2006 | 2 | 9 |
| 2007 | 1 | 6 |
| 2008 | 1 | 8 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 4 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 5 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 3 | 4 |
| 2022 | 1 | 4 |
| 2023 | 4 | 2 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dental handpiece and axial groove ball bearing21 Jul 2026US 12,685,614 B2Gebr. Reinfurt GmbH & Co. KG
- Endodontic driving and operating device2 Jun 2026US 12,642,622 B2ReDentNova GmbH & CO. KG
- Smart oil spray adapter24 Feb 2026US 12,558,447 B2Aesculap AG
- Dental handpiece oiling machine16 Dec 2025US 12,498,085 B2Beyes Dental Canada Inc.
- Selective coupling device for a collet chuck12 Aug 2025US 12,383,375 B2Bien-Air Holding SA
- Dental handpiece9 Jul 2026US 2026/0191620 A1Nakanishi Inc.
- Dental handpiece4 Jun 2026US 2026/0151210 A1J. Morita Mfg. Corp.
- Dental handpiece oiling machine31 Jul 2025US 2025/0243974 A1Beyes Dental Canada Inc.
- Endodontic driving and operating device8 Feb 2024US 2024/0041561 A1ReDentNova GmbH & CO. KG
- Smart oil spray adapter29 Jun 2023US 2023/0201398 A1Aesculap AG
Most cited
By later US patents
- High load capacity compliant foil hydrodynamic journal bearing50US 5,902,049 AMohawk Innovative Technology, Inc. · 1999
- Dental handpiece with disposable drill head assembly36US 5,538,425 A1996
- Alloy bearing for dental scaler34US 5,062,797 ADen-Tal-Ez, Inc. · 1991
- Disposable dental instrument30US 7,008,224 B12006
- Dental handpiece29US 5,336,089 APromident Manufacturing, Limited · 1994