B23B 31/02
Chucks
B23B31/02 (Chucks) appears on 4,203 US grants and 2,843 published applications in this corpus.
Search patents in B23B- Granted patents
- 4,203
- Published applications
- 2,843
- Assignees
- 1,551
- Inventors
- 5,347
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 67 | 0 |
| 1977 | 67 | 0 |
| 1978 | 54 | 0 |
| 1979 | 29 | 0 |
| 1980 | 63 | 0 |
| 1981 | 64 | 0 |
| 1982 | 45 | 0 |
| 1983 | 45 | 0 |
| 1984 | 42 | 0 |
| 1985 | 72 | 0 |
| 1986 | 104 | 0 |
| 1987 | 106 | 0 |
| 1988 | 88 | 0 |
| 1989 | 96 | 0 |
| 1990 | 77 | 0 |
| 1991 | 83 | 0 |
| 1992 | 73 | 0 |
| 1993 | 76 | 0 |
| 1994 | 73 | 0 |
| 1995 | 73 | 0 |
| 1996 | 51 | 0 |
| 1997 | 53 | 0 |
| 1998 | 89 | 0 |
| 1999 | 124 | 0 |
| 2000 | 72 | 0 |
| 2001 | 115 | 40 |
| 2002 | 107 | 82 |
| 2003 | 104 | 83 |
| 2004 | 66 | 98 |
| 2005 | 75 | 103 |
| 2006 | 72 | 129 |
| 2007 | 74 | 121 |
| 2008 | 70 | 106 |
| 2009 | 59 | 114 |
| 2010 | 81 | 101 |
| 2011 | 68 | 106 |
| 2012 | 76 | 100 |
| 2013 | 87 | 110 |
| 2014 | 101 | 131 |
| 2015 | 92 | 156 |
| 2016 | 123 | 113 |
| 2017 | 133 | 131 |
| 2018 | 139 | 123 |
| 2019 | 121 | 127 |
| 2020 | 113 | 118 |
| 2021 | 111 | 154 |
| 2022 | 92 | 140 |
| 2023 | 84 | 116 |
| 2024 | 88 | 102 |
| 2025 | 85 | 81 |
| 2026 | 81 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23B 31/10Characterised by the retaining or gripping devices or their immediate operating means3,283
- B23B 31/24Characterised by features relating primarily to remote control of the gripping means889
- B23B 31/08Holding tools yieldably156
- B23B 31/028The axial positioning of the tool being adjustable76
- B23B 31/06Features relating to the removal of tools66
- B23B 31/026The radial or angular position of the tool being adjustable65
- B23B 31/36With means for adjusting the chuck with respect to the working-spindle58
- B23B 31/39Jaw changers32
Recent patents
- Power tool6 Oct 2026US 12,752,345 B2Robert Bosch GmbH
- Workpiece holding device6 Oct 2026US 12,752,346 B2Aktiebolaget Skf
- Mounting device, mounting method, and method for manufacturing product6 Oct 2026US 12,752,347 B2Sintokogio, Ltd.
- System for drawing off the electrode caps from electrode adapters6 Oct 2026US 12,752,365 B2Braeuer Systemtechnik GmbH
- Tool clamp device and machine tool29 Sep 2026US 12,746,605 B2Dmg Mori Co., Ltd.
- Bit holder8 Oct 2026US 2026/0307155 A1Milwaukee Electric Tool Corporation
- Bar contact improvement1 Oct 2026US 2026/0295683 A1
- Fastening and coupling apparatus for a rotating tool, and power tool having a fastening and coupling apparatus of this type1 Oct 2026US 2026/0295684 A1C. & E. Fein GmbH
- Components of a Machine Tool for Automated Collet Chuck Maintenance and Cleaning1 Oct 2026US 2026/0295751 A1Schmoll Maschinen GmbH
- Chuck arrangement comprising a turnable t-slot nut provided with threaded holes and a method for operating the same24 Sep 2026US 2026/0284753 A1M.P.C.-System AB
Most cited
By later US patents
- Tool attachment1,179US 9,193,045 B2Robert Bosch GmbH · 2015
- Tool changer for vertical boring machine1,027US 4,321,746 AWhite Consolidated Industries, Inc. · 1982
- Blade retention mechanism for surgical instrument1,022US 9,265,516 B2Gyrus ACMI, Inc. · 2016
- Power tools537US 6,536,536 B12003
- Handle adapter and chuck apparatus for power bits279US 4,692,073 A1987