B24B 23/022
Spindle-locking devices
Official title: {Spindle-locking devices, e.g. for mounting or removing the tool}
B24B23/022 (Spindle-locking devices) appears on 124 US grants and 161 published applications in this corpus.
Search patents in B24B- Granted patents
- 124
- Published applications
- 161
- Assignees
- 56
- Inventors
- 334
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 5 |
| 2003 | 4 | 1 |
| 2004 | 2 | 4 |
| 2005 | 5 | 3 |
| 2006 | 4 | 2 |
| 2007 | 0 | 5 |
| 2008 | 1 | 8 |
| 2009 | 2 | 3 |
| 2010 | 4 | 4 |
| 2011 | 4 | 3 |
| 2012 | 5 | 5 |
| 2013 | 2 | 3 |
| 2014 | 3 | 9 |
| 2015 | 3 | 4 |
| 2016 | 7 | 3 |
| 2017 | 5 | 2 |
| 2018 | 4 | 14 |
| 2019 | 4 | 12 |
| 2020 | 10 | 8 |
| 2021 | 5 | 8 |
| 2022 | 4 | 16 |
| 2023 | 5 | 9 |
| 2024 | 6 | 12 |
| 2025 | 8 | 10 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power tool6 Oct 2026US 12,752,345 B2Robert Bosch GmbH
- Power tool with operation assembly29 Sep 2026US 12,746,635 B2Makita Corporation
- Power tool facilitating replacement of operating head15 Sep 2026US 12,734,666 B2Zhejiang Prulde Electric Appliance Co., Ltd.
- Quick clamping device12 May 2026US 12,623,315 B2Robert Bosch GmbH
- Power tool14 Apr 2026US 12,600,022 B2C. & E. Fein GmbH
- Grinding and cleaning tool27 Aug 2026US 2026/0249422 A1Hong Ann Tool Industries Co., Ltd.
- Handheld grinder and method for controlling illuminator for handheld grinder6 Aug 2026US 2026/0225204 A1Makita Corporation
- Electric power tool6 Aug 2026US 2026/0225219 A1Nanjing Chervon Industry Co., Ltd.
- Spindle Locking Device, Tool Holder, and Assembly Method for Assembling a Tool Holder2 Jul 2026US 2026/0183920 A1Robert Bosch GmbH
- Reversible flange assembly for power tools25 Jun 2026US 2026/0175348 A1Black & Decker Inc.
Most cited
By later US patents
- Portable grinder with quick-acting chucking device119US 5,157,873 AC. & E. Fein GmbH · 1992
- Portable machine tool with automatic locking of the work spindle87US 4,989,374 AC. & E. Fein GmbH · 1991
- Power tool84US 5,601,483 AC. & E. Fein GmbH · 1997
- Spindle lock with impacting capability66US 4,400,995 AMilwaukee Electric Tool Corporation · 1983
- Quick mount attachment for rotary finishing tool65US 6,523,214 B12003