B23H 1/028
For multiple gap machining
Official title: {for multiple gap machining}
B23H1/028 (For multiple gap machining) appears on 68 US grants and 64 published applications in this corpus.
Search patents in B23H- Granted patents
- 68
- Published applications
- 64
- Assignees
- 33
- Inventors
- 106
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 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 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 0 |
| 2004 | 2 | 3 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 0 | 1 |
| 2013 | 1 | 5 |
| 2014 | 0 | 2 |
| 2015 | 2 | 8 |
| 2016 | 4 | 4 |
| 2017 | 7 | 5 |
| 2018 | 3 | 6 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 4 | 5 |
| 2022 | 8 | 1 |
| 2023 | 2 | 7 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wire spark machining apparatus and method for producing semiconductor wafer26 May 2026US 12,636,722 B2Mitsubishi Electric Corporation
- Multiwire electric discharge machine and multiwire electric discharge machining system24 Feb 2026US 12,558,733 B2Mitsubishi Electric Corporation
- Multiwire electric discharge machine, multiwire electric discharge machining method, and semiconductor wafer manufacturing method8 Apr 2025US 12,269,104 B2Mitsubishi Electric Corporation
- Control device and recording medium encoded with program11 Mar 2025US 12,246,386 B2Fanuc Corporation
- Aircraft heat exchanger finned plate manufacture13 Feb 2024US 11,898,809 B2Rtx Corporation
- Wire electrical discharge machining apparatus, wire electrical discharge machining method, and wafer manufacturing method16 Jul 2026US 2026/0199995 A1Mitsubishi Electric Corporation
- Electrical discharge machining apparatus and method of the same12 Feb 2026US 2026/0042162 A1Highlight Tech Corp.
- Improvements to electrical discharge texturing machines13 Mar 2025US 2025/0083242 A1Sarclad Limited
- Multiwire electric discharge machine, multiwire electric discharge machining method, and semiconductor wafer manufacturing method3 Oct 2024US 2024/0326145 A1Mitsubishi Electric Corporation
- Electrical discharge machining apparatus28 Dec 2023US 2023/0415251 A1Highlight Tech Corp.
Most cited
By later US patents
- Electrical discharge apparatus for producing a textured finish on a conductive surface23US 5,034,589 ASarclad International Limited · 1991
- EDM Method of and apparatus for machining cavities using a plurality of independently movable segmented electrodes12US 4,476,369 AInoue-Japax Research Incorporated · 1984
- Electro-discharge machining apparatus12US 4,950,860 ASpark Tec Limited · 1990
- Apparatus and method for electrical discharge machining multiple holes12US 6,373,018 B1General Electric Company · 2002
- Micro-electro-discharge machining method and apparatus12US 6,624,377 B2Wisconsin Alumni Research Foundation · 2003