B27B 5/32
Devices for securing circular saw blades to the saw spindle
B27B5/32 (Devices for securing circular saw blades to the saw spindle) appears on 305 US grants and 277 published applications in this corpus.
Search patents in B27B- Granted patents
- 305
- Published applications
- 277
- Assignees
- 106
- Inventors
- 475
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 1 |
| 2002 | 2 | 10 |
| 2003 | 3 | 11 |
| 2004 | 11 | 15 |
| 2005 | 9 | 7 |
| 2006 | 7 | 13 |
| 2007 | 5 | 10 |
| 2008 | 9 | 11 |
| 2009 | 3 | 7 |
| 2010 | 6 | 7 |
| 2011 | 5 | 12 |
| 2012 | 5 | 9 |
| 2013 | 6 | 11 |
| 2014 | 7 | 22 |
| 2015 | 15 | 10 |
| 2016 | 18 | 8 |
| 2017 | 13 | 13 |
| 2018 | 12 | 8 |
| 2019 | 10 | 20 |
| 2020 | 10 | 14 |
| 2021 | 17 | 18 |
| 2022 | 6 | 6 |
| 2023 | 11 | 15 |
| 2024 | 8 | 11 |
| 2025 | 11 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power tool6 Oct 2026US 12,752,345 B2Robert Bosch GmbH
- Oscillating tool1 Sep 2026US 12,722,207 B2Black & Decker Inc.
- Circular saws that include blade mounts for circular saw blades and methods of attaching circular saw blades to circular saws16 Jun 2026US 12,654,351 B2Festool GmbH
- Mandrel assembly for use with a rotary tool12 May 2026US 12,623,295 B2Robert Bosch GmbH
- Saw blade quick-change structure for electric tools, and saw blade quick-change method11 Nov 2025US 12,465,985 B2Zhejiang Jinmei Electric Tools Co., Ltd.
- Tool blade, tool fitting, system and power tool17 Sep 2026US 2026/0273637 A1Hilti Aktiengesellschaft
- Battery-Operated Power Tool3 Sep 2026US 2026/0257393 A1Robert Bosch GmbH
- Method of using accessories for oscillating power tools5 Feb 2026US 2026/0034635 A1Black & Decker Inc.
- Machine Tool Device, Machine Tool and System6 Nov 2025US 2025/0339989 A1Robert Bosch GmbH
- Machine Tool Device, Machine Tool and System23 Oct 2025US 2025/0326041 A1Robert Bosch GmbH
Most cited
By later US patents
- Quick change mechanism for circular saw blades and other spinning disc devices169US 4,657,428 A1987
- Quick release mechanism for surgical devices150US 3,943,934 AMinnesota Mining and Manufacturing Company · 1976
- Saw blade for powered medical handpiece140US 5,468,247 AStryker Corporation · 1995
- Quick change mechanism for circular saw blades135US 4,730,952 A1988
- Chuck and blade for powered medical handpiece117US 5,702,415 AStryker Corporation · 1997