B23Q 3/15
Devices for holding work using magnetic or electric force acting directly on
Official title: Devices for holding work using magnetic or electric force acting directly on the work
B23Q3/15 (Devices for holding work using magnetic or electric force acting directly on) appears on 332 US grants and 288 published applications in this corpus.
Search patents in B23Q- Granted patents
- 332
- Published applications
- 288
- Assignees
- 208
- Inventors
- 709
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 3 |
| 2002 | 6 | 4 |
| 2003 | 2 | 4 |
| 2004 | 7 | 8 |
| 2005 | 3 | 2 |
| 2006 | 5 | 4 |
| 2007 | 5 | 1 |
| 2008 | 0 | 6 |
| 2009 | 0 | 5 |
| 2010 | 1 | 9 |
| 2011 | 4 | 8 |
| 2012 | 2 | 3 |
| 2013 | 5 | 15 |
| 2014 | 12 | 9 |
| 2015 | 13 | 16 |
| 2016 | 13 | 17 |
| 2017 | 7 | 11 |
| 2018 | 7 | 14 |
| 2019 | 19 | 13 |
| 2020 | 10 | 26 |
| 2021 | 14 | 24 |
| 2022 | 19 | 20 |
| 2023 | 20 | 11 |
| 2024 | 26 | 23 |
| 2025 | 14 | 22 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrostatic chuck22 Sep 2026US 12,741,349 B2Samsung Electronics Co., Ltd.
- Cryogenic electrostatic chuck system and method for controlling same25 Aug 2026US 12,721,102 B2Kwangwoon University Industry-Academic Collaboration Foundation
- Electrostatic chuck4 Aug 2026US 12,697,691 B2Toto Ltd.
- Magnetic coupling device7 Apr 2026US 12,597,544 B2Magswitch Automation Company
- Magnetic coupling device with at least one of a sensor arrangement and a degauss capability17 Feb 2026US 12,551,988 B2Magswitch Automation Company
- Magnetic clamping device20 Aug 2026US 2026/0241625 A1Kosmek Ltd.
- Electrostatic chuck film20 Aug 2026US 2026/0247916 A1Youlchon Chemical Co., Ltd.
- Electrostatic chuck with a light heating structure2 Jul 2026US 2026/0183883 A1VM Inc.
- Magnetic coupling device25 Jun 2026US 2026/0175337 A1Magswitch Automation Company
- Electrostatic chuck assembly and deposition apparatus including the same28 May 2026US 2026/0149393 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- Chucking apparatus and production method for the same482US 6,863,281 B2Sumitomo Osaka Cement Co., Ltd. · 2005
- Method of and apparatus for applying voltage to electrostatic chuck401US 5,117,121 AToto Ltd. · 1992
- Magnetic gripping apparatus having circuit for eliminating residual flux92US 4,956,625 ATecnomagnete S.p.A. · 1990
- Magnetic base86US 4,251,791 AKanetsu Kogyo Kabushiki Kaisha · 1981
- Electrostatic chuck85US 5,413,360 AKYOCERA Corporation · 1995