B23B 31/30
Using fluid-pressure means in the chuck
Official title: using fluid-pressure means in the chuck {(B23B31/10 and B23B31/40 take precedence)}
B23B31/30 (Using fluid-pressure means in the chuck) appears on 385 US grants and 276 published applications in this corpus.
Search patents in B23B- Granted patents
- 385
- Published applications
- 276
- Assignees
- 244
- Inventors
- 619
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 2 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 11 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 5 | 0 |
| 2001 | 13 | 2 |
| 2002 | 9 | 8 |
| 2003 | 10 | 6 |
| 2004 | 7 | 7 |
| 2005 | 5 | 5 |
| 2006 | 5 | 3 |
| 2007 | 2 | 6 |
| 2008 | 7 | 12 |
| 2009 | 2 | 9 |
| 2010 | 5 | 9 |
| 2011 | 7 | 6 |
| 2012 | 2 | 5 |
| 2013 | 6 | 11 |
| 2014 | 5 | 12 |
| 2015 | 9 | 24 |
| 2016 | 13 | 10 |
| 2017 | 17 | 11 |
| 2018 | 12 | 19 |
| 2019 | 14 | 14 |
| 2020 | 16 | 13 |
| 2021 | 15 | 16 |
| 2022 | 9 | 15 |
| 2023 | 12 | 16 |
| 2024 | 6 | 19 |
| 2025 | 11 | 12 |
| 2026 | 16 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tool clamp device and machine tool29 Sep 2026US 12,746,605 B2Dmg Mori Co., Ltd.
- Clamping device for tool holder1 Sep 2026US 12,722,209 B2AB Sandvik Coromant
- Tool rest and machine tool25 Aug 2026US 12,715,048 B2Dmg Mori Co., Ltd.
- Modular hydraulic chucks4 Aug 2026US 12,697,662 B2Kennametal Inc.
- Coupling device for producing a non-permanent hydraulic connection4 Aug 2026US 12,698,853 B2WTO Vermögensverwaltung GmbH
- Components of a Machine Tool for Automated Collet Chuck Maintenance and Cleaning1 Oct 2026US 2026/0295751 A1Schmoll Maschinen GmbH
- Tool holder16 Jul 2026US 2026/0199988 A1PCM Precision Tooling SA
- Device For Grinding A Workpiece And/Or Dressing A Tool16 Jul 2026US 2026/0200037 A1Reishauer AG
- Hydraulic chuck for jaw molding21 May 2026US 2026/0138194 A1Samchully Machinery Co., Ltd
- Hydraulic expansion chuck for receiving a tool21 May 2026US 2026/0138195 A1Gühring KG
Most cited
By later US patents
- Wafer-handling apparatus having a resilient membrane which holds wafer when a vacuum is applied197US 5,423,716 A1995
- Device for effecting automatic exchange of measuring tools in a measuring robot or machine78US 4,706,372 AD. E. A. Digital Electronic Automation S.p.A. · 1987
- Hydraulic tool holder with coolant jets53US 5,388,487 ASandvik AB · 1995
- Apparatus and method for handling fragile semiconductor wafers51US 5,273,615 AMotorola, Inc. · 1993
- Rotary vacuum-chuck using no rotary union47US 4,183,545 AAdvanced Simiconductor Materials/America · 1980