B23H 1/00
Electrical discharge machining, i.e. removing metal with a series of rapidly recurring
Official title: Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
B23H1/00 (Electrical discharge machining, i.e. removing metal with a series of rapidly recurring) appears on 1,077 US grants and 816 published applications in this corpus.
Search patents in B23H- Granted patents
- 1,077
- Published applications
- 816
- Assignees
- 374
- Inventors
- 1,624
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 10 | 0 |
| 1978 | 5 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 14 | 0 |
| 1983 | 22 | 0 |
| 1984 | 26 | 0 |
| 1985 | 17 | 0 |
| 1986 | 12 | 0 |
| 1987 | 18 | 0 |
| 1988 | 20 | 0 |
| 1989 | 23 | 0 |
| 1990 | 13 | 0 |
| 1991 | 23 | 0 |
| 1992 | 16 | 0 |
| 1993 | 15 | 0 |
| 1994 | 23 | 0 |
| 1995 | 21 | 0 |
| 1996 | 14 | 0 |
| 1997 | 13 | 0 |
| 1998 | 21 | 0 |
| 1999 | 25 | 0 |
| 2000 | 12 | 0 |
| 2001 | 16 | 8 |
| 2002 | 28 | 22 |
| 2003 | 27 | 10 |
| 2004 | 28 | 25 |
| 2005 | 19 | 12 |
| 2006 | 9 | 18 |
| 2007 | 11 | 27 |
| 2008 | 5 | 21 |
| 2009 | 8 | 20 |
| 2010 | 19 | 33 |
| 2011 | 16 | 20 |
| 2012 | 20 | 22 |
| 2013 | 11 | 60 |
| 2014 | 28 | 50 |
| 2015 | 35 | 71 |
| 2016 | 45 | 60 |
| 2017 | 40 | 45 |
| 2018 | 45 | 48 |
| 2019 | 57 | 52 |
| 2020 | 46 | 37 |
| 2021 | 36 | 35 |
| 2022 | 41 | 31 |
| 2023 | 26 | 31 |
| 2024 | 18 | 24 |
| 2025 | 18 | 16 |
| 2026 | 14 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Blood pump11 Aug 2026US 12,702,819 B2Abiomed Europe GmbH
- Pull stud bolt installation and removal tool and tubular body manufacturing method thereof11 Aug 2026US 12,703,071 B2Protoeng Co., Ltd.
- Electric discharge machining apparatus and method for fixing power conductor in electric discharge machining apparatus28 Jul 2026US 12,691,515 B2Sodick Co., Ltd.
- Wire electric discharge machining apparatus7 Jul 2026US 12,673,376 B2Sodick Co., Ltd.
- Electrode wire for electrical discharge machining and preparation method thereof30 Jun 2026US 12,667,898 B2Ningbo Boway Alloy Hightech Wire Co. Ltd
- Control device, electrodischarge machining apparatus, and control method24 Sep 2026US 2026/0284763 A1Fanuc Corporation
- Electric discharge machining device27 Aug 2026US 2026/0249373 A1Fanuc Corporation
- Small-hole electrical discharge machine6 Aug 2026US 2026/0225168 A1Elenix, Inc.
- Surface treatment method and surface treatment device16 Jul 2026US 2026/0199994 A1Yasunaga Corporation
- Wire electrical discharge machining apparatus, wire electrical discharge machining method, and wafer manufacturing method16 Jul 2026US 2026/0199995 A1Mitsubishi Electric Corporation
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- Implantable orthopedic prosthesis having tissue attachment surface and method of manufacture153US 6,127,596 ASulzer Orthopedics Inc. · 2000
- Pulsed electric rock drilling apparatus80US 7,416,032 B2Tetra Corporation · 2008
- Airfoil with diffused cooling holes and method and apparatus for making the same77US 4,762,464 AChromalloy Gas Turbine Corporation · 1988
- Electrostatic precipitator power supply69US 4,808,200 ASiemens Aktiengesellschaft · 1989