B23B 2231/38
Keyless chucks for hand tools
B23B2231/38 (Keyless chucks for hand tools) appears on 317 US grants and 216 published applications in this corpus.
Search patents in B23B- Granted patents
- 317
- Published applications
- 216
- Assignees
- 56
- Inventors
- 243
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 11 | 0 |
| 2001 | 20 | 6 |
| 2002 | 11 | 16 |
| 2003 | 18 | 14 |
| 2004 | 9 | 14 |
| 2005 | 11 | 11 |
| 2006 | 10 | 29 |
| 2007 | 10 | 23 |
| 2008 | 12 | 9 |
| 2009 | 15 | 8 |
| 2010 | 19 | 9 |
| 2011 | 12 | 10 |
| 2012 | 7 | 4 |
| 2013 | 7 | 10 |
| 2014 | 11 | 13 |
| 2015 | 2 | 4 |
| 2016 | 11 | 2 |
| 2017 | 4 | 5 |
| 2018 | 3 | 3 |
| 2019 | 4 | 2 |
| 2020 | 1 | 7 |
| 2021 | 8 | 7 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 3 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chuck with slip protection14 Apr 2026US 12,599,972 B2Apex Brands, Inc.
- Electronic spindle lock for a power tool9 Dec 2025US 12,491,593 B2Milwaukee Electric Tool Corporation
- Chuck assembly for a rotary power tool2 Dec 2025US 12,485,493 B2Milwaukee Electric Tool Corporation
- Power tool chuck6 May 2025US 12,290,864 B2Black & Decker Inc.
- Chuck with locking sleeve21 Jan 2025US 12,202,055 B2Apex Brands, Inc.
- Power tool chuck11 Jun 2026US 2026/0158561 A1Black & Decker Inc.
- Electronic spindle lock for a power tool9 Apr 2026US 2026/0097461 A1Milwaukee Electric Tool Corporation
- Chuck assembly for a rotary power tool24 Jul 2025US 2025/0235934 A1Milwaukee Electric Tool Corporation
- Chuck assembly for a rotary power tool8 May 2025US 2025/0144719 A1
- Chuck with locking sleeve8 Aug 2024US 2024/0261873 A1Apex Brands, Inc.
Most cited
By later US patents