B23B 2231/20
Collet chucks
B23B2231/20 (Collet chucks) appears on 189 US grants and 183 published applications in this corpus.
Search patents in B23B- Granted patents
- 189
- Published applications
- 183
- Assignees
- 131
- Inventors
- 294
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 3 |
| 2002 | 5 | 2 |
| 2003 | 4 | 4 |
| 2004 | 3 | 6 |
| 2005 | 4 | 7 |
| 2006 | 5 | 10 |
| 2007 | 4 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 6 | 5 |
| 2011 | 1 | 6 |
| 2012 | 0 | 2 |
| 2013 | 1 | 8 |
| 2014 | 6 | 14 |
| 2015 | 8 | 12 |
| 2016 | 11 | 12 |
| 2017 | 8 | 10 |
| 2018 | 11 | 11 |
| 2019 | 8 | 15 |
| 2020 | 8 | 11 |
| 2021 | 16 | 9 |
| 2022 | 4 | 4 |
| 2023 | 2 | 8 |
| 2024 | 2 | 8 |
| 2025 | 3 | 5 |
| 2026 | 10 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23B 2231/201Operating surfaces of collets, i.e. the surface of the collet acted onIndexing code37
- B23B 2231/2089Slits of colletsIndexing code37
- B23B 2231/2027Gripping surfaces, i.e. the surface contacting the tool or workpieceIndexing code31
- B23B 2231/2005Keys preventing rotationIndexing code29
- B23B 2231/2081Keys, spanners or wrenches to operate the collet chuckIndexing code26
- B23B 2231/2078Jaw carriers, i.e. components retaining the collet itselfIndexing code21
- B23B 2231/2083Collets comprising screw threadsIndexing code14
- B23B 2231/2008Bores holding the collet having a slightly conical profileIndexing code13
All 13 subgroupsShow fewer
- B23B 2231/2048Collets comprising insertsIndexing code13
- B23B 2231/2072Jaws of colletsIndexing code9
- B23B 2231/2086Collets in which the jaws are formed as separate elements, i.e. notIndexing code8
- B23B 2231/2024Non-circular surfaces of collets for the transmission of torqueIndexing code4
- B23B 2231/2002Collets having blade-like jawsIndexing code1
Recent patents
- Multiple connection drive shaft14 Jul 2026US 12,678,177 B2Medtronic PS Medical, Inc.
- Gripping device for holding, centring and/or collet-clamping a micromechanical or horological component7 Jul 2026US 12,673,373 B2ETA SA Manufacture Horlogere Suisse
- Self-locking clamping system for a hollow shaft23 Jun 2026US 12,661,719 B2WTO Vermögensverwaltung GmbH
- Tool holder and tool holding structure including the same31 Mar 2026US 12,589,439 B2Nikken Kosakusho Works Ltd.
- Gripping device for holding, centring and/or collet-clamping a micromechanical or horological component, and associated attachment method31 Mar 2026US 12,589,440 B2ETA SA Manufacture Horlogere Suisse
- 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
- Machine tool20 Aug 2026US 2026/0241463 A1Star Micronics Co., Ltd.
- Shock-absorbing collet chuck holder2 Jul 2026US 2026/0183847 A1Everinn International Co., Ltd.
- Collet and driveshaft interface for surgical driver accessory5 Mar 2026US 2026/0061498 A1Arthrex, Inc.
- Ram clamping system16 Oct 2025US 2025/0319526 A1Adelbert Haas GmbH
Most cited
By later US patents
- Rotary tool with improved coupling assembly61US 9,414,848 B2Gyrus ACMI, Inc. · 2016
- Tool holder41US 4,714,389 AJ. Kuhn GmbH Co. · 1987
- Clamping apparatus34US 6,095,509 AKosmek Ltd. · 2000
- Tool-free collet tightener34US 6,350,087 B1Black & Decker Inc. · 2002
- Chuck assembly and collet32US 4,377,292 AThe Bendix Corporation · 1983