B23B 31/00
Chucks
Official title: Chucks {(allowing axial oscillation of percussion tool bits B25D17/08)}; Expansion mandrels; Adaptations thereof for remote control (faceplates B23Q1/50; rotary devices holding by magnetic and/or electrical force acting directly on work B23Q3/152)
B23B31/00 (Chucks) appears on 4,597 US grants and 3,109 published applications in this corpus.
Search patents in B23B- Granted patents
- 4,597
- Published applications
- 3,109
- Assignees
- 1,682
- Inventors
- 5,891
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 78 | 0 |
| 1977 | 74 | 0 |
| 1978 | 61 | 0 |
| 1979 | 34 | 0 |
| 1980 | 68 | 0 |
| 1981 | 75 | 0 |
| 1982 | 49 | 0 |
| 1983 | 53 | 0 |
| 1984 | 46 | 0 |
| 1985 | 79 | 0 |
| 1986 | 111 | 0 |
| 1987 | 112 | 0 |
| 1988 | 97 | 0 |
| 1989 | 108 | 0 |
| 1990 | 82 | 0 |
| 1991 | 91 | 0 |
| 1992 | 81 | 0 |
| 1993 | 82 | 0 |
| 1994 | 82 | 0 |
| 1995 | 80 | 0 |
| 1996 | 61 | 0 |
| 1997 | 58 | 0 |
| 1998 | 100 | 0 |
| 1999 | 136 | 0 |
| 2000 | 83 | 0 |
| 2001 | 122 | 48 |
| 2002 | 118 | 96 |
| 2003 | 114 | 89 |
| 2004 | 71 | 106 |
| 2005 | 82 | 119 |
| 2006 | 79 | 147 |
| 2007 | 85 | 134 |
| 2008 | 80 | 123 |
| 2009 | 66 | 124 |
| 2010 | 92 | 114 |
| 2011 | 84 | 117 |
| 2012 | 78 | 111 |
| 2013 | 93 | 114 |
| 2014 | 106 | 138 |
| 2015 | 100 | 174 |
| 2016 | 130 | 124 |
| 2017 | 146 | 136 |
| 2018 | 146 | 133 |
| 2019 | 127 | 137 |
| 2020 | 122 | 123 |
| 2021 | 119 | 165 |
| 2022 | 102 | 149 |
| 2023 | 87 | 125 |
| 2024 | 93 | 113 |
| 2025 | 89 | 86 |
| 2026 | 85 | 64 |
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
- 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
- Controlled electro-pneumatic power tools and interactive consumable1,078US 9,061,392 B22015
- 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