B23B 2231/2027
Gripping surfaces, i.e. the surface contacting the tool or workpiece
B23B2231/2027 (Gripping surfaces, i.e. the surface contacting the tool or workpiece) appears on 31 US grants and 36 published applications in this corpus.
Search patents in B23B- Granted patents
- 31
- Published applications
- 36
- Assignees
- 40
- Inventors
- 68
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 3 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 4 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 2 | 3 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
| 2021 | 3 | 2 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 0 | 3 |
| 2025 | 1 | 2 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23B 2231/2043Discontinuous, interrupted or splitIndexing code7
- B23B 2231/2035PolygonalIndexing code4
- B23B 2231/2037RoughenedIndexing code4
- B23B 2231/204With saw tooth profilesIndexing code3
- B23B 2231/2045Comprising two or more diametersIndexing code3
- B23B 2231/2029ConicalIndexing code2
- B23B 2231/2032With non-cylindrical cross sectionIndexing code2
Recent patents
- Gripping device for holding, centring and/or collet-clamping a micromechanical or horological component7 Jul 2026US 12,673,373 B2ETA SA Manufacture Horlogere Suisse
- 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
- Gripper device for maintaining, centring, and/or clamping a micromechanical or horological component, and associated fastening method17 Feb 2026US 12,554,228 B2ETA SA Manufacture Horlogere Suisse
- Method for gripping constant-velocity universal joint component13 Jan 2026US 12,521,831 B2Ntn Corporation
- Chuck assembly for a rotary power tool2 Dec 2025US 12,485,493 B2Milwaukee Electric Tool Corporation
- Chuck assembly for a rotary power tool24 Jul 2025US 2025/0235934 A1Milwaukee Electric Tool Corporation
- Method for machining a workpiece and adapter for use when machining a workpiece29 May 2025US 2025/0170657 A1Dmg Mori Bergamo S.R.L.
- Gripping device for holding, centring and/or collet-clamping a micromechanical or horological component23 May 2024US 2024/0165714 A1ETA SA Manufacture Horlogere Suisse
- Gripping device for holding, centring and/or collet-clamping a micromechanical or horological component, and associated attachment method23 May 2024US 2024/0165715 A1ETA SA Manufacture Horlogere Suisse
- Gripper device for maintaining, centring, and/or clamping a micromechanical or horological component, and associated fastening method23 May 2024US 2024/0168441 A1ETA SA Manufacture Horlogere Suisse
Most cited
By later US patents
- Clamping apparatus34US 6,095,509 AKosmek Ltd. · 2000
- Cam actuated collet tool holder25US 4,808,049 A1989
- Tool chuck having a light transmitting capability25US 7,080,964 B2Credo Technology Corporation · 2006
- Self-aligning collet23US 5,398,947 AF & S Tool and Gauge Co. · 1995
- Method and apparatus for marking miniature turned parts6US 4,269,090 ASwisstronics, Inc. · 1981