B23B 2231/30
Chucks with four jaws
B23B2231/30 (Chucks with four jaws) appears on 17 US grants and 15 published applications in this corpus.
Search patents in B23B- Granted patents
- 17
- Published applications
- 15
- Assignees
- 8
- Inventors
- 33
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 3 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Jaw assembly10 Mar 2026US 12,569,919 B2Record Power Limited
- Omni-directional computerized numerical control (CNC) machine tool and method of performing the same21 Jan 2025US 12,202,088 B2
- Chuck26 Oct 2021US 11,154,938 B2SMW-Autoblok Spannsysteme GmbH
- Rim drilling and milling machine7 Apr 2020US 10,610,989 B1Top-One Machinery Co., Ltd.
- Compensating chuck9 Apr 2019US 10,252,348 B2HVM Technology GmbH
- Chuck28 Sep 2023US 2023/0302547 A1
- Jaw assembly5 Jan 2023US 2023/0001489 A1Record Power Limited
- Chuck20 Oct 2022US 2022/0331884 A1
- Omni-directional computerized numerical control (cnc) machine tool and method of performing the same30 Dec 2021US 2021/0405607 A1
- Chuck19 Mar 2020US 2020/0086397 A1SMW-Autoblok Spannsysteme GmbH
Most cited
By later US patents