B27B 17/10
Transmission clutches specially designed for chain saws
B27B17/10 (Transmission clutches specially designed for chain saws) appears on 44 US grants and 27 published applications in this corpus.
Search patents in B27B- Granted patents
- 44
- Published applications
- 27
- Assignees
- 24
- Inventors
- 99
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 5 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Container, cover and chainsaw12 May 2026US 12,623,369 B2Greenworks (Jiangsu) Co., Ltd.
- Working machine31 Mar 2026US 12,589,516 B2Yamabiko Corporation
- Multi-speed automatic transmission for a power tool18 Mar 2025US 12,251,812 B2Milwaukee Electric Tool Corporation
- Chain saw19 Nov 2024US 12,145,289 B2Nanjing Chervon Industry Co., Ltd.
- Low profile chainsaw20 Jun 2023US 11,679,525 B2Black & Decker Inc.
- Container, cover and chainsaw27 Aug 2026US 2026/0249511 A1Greenworks (Jiangsu) Co., Ltd.
- A handheld battery powered chainsaw with a centrifugal clutch6 Aug 2026US 2026/0225280 A1Husqvarna AB
- Working Machine4 Dec 2025US 2025/0367849 A1Yamabiko Corporation
- Chainsaws and clutches for chainsaws10 Jul 2025US 2025/0222619 A1Milwaukee Electric Tool Corporation
- Working machine17 Apr 2025US 2025/0121527 A1Makita Corporation
Most cited
By later US patents
- Centrifugal clutch27US 5,845,757 ARyobi North America, Inc. · 1998
- Releasable engine coupling arrangement26US 4,757,786 A1988
- Centrifugal clutch20US 4,819,779 AAndreas Stihl AG & CO.KG · 1989
- Chain saw with a stopping device18US 4,782,593 AMetabowerke GmbH · 1988
- Motor saw, especially motor chain saw17US 3,991,864 AAndreas Stihl Maschinenfabrik · 1976