B23H 7/00
Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
B23H7/00 (Processes or apparatus applicable to both electrical discharge machining and electrochemical machining) appears on 1,888 US grants and 1,126 published applications in this corpus.
Search patents in B23H- Granted patents
- 1,888
- Published applications
- 1,126
- Assignees
- 497
- Inventors
- 2,244
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 22 | 0 |
| 1978 | 18 | 0 |
| 1979 | 14 | 0 |
| 1980 | 25 | 0 |
| 1981 | 22 | 0 |
| 1982 | 38 | 0 |
| 1983 | 40 | 0 |
| 1984 | 53 | 0 |
| 1985 | 49 | 0 |
| 1986 | 48 | 0 |
| 1987 | 65 | 0 |
| 1988 | 50 | 0 |
| 1989 | 50 | 0 |
| 1990 | 40 | 0 |
| 1991 | 71 | 0 |
| 1992 | 50 | 0 |
| 1993 | 41 | 0 |
| 1994 | 35 | 0 |
| 1995 | 37 | 0 |
| 1996 | 23 | 0 |
| 1997 | 22 | 0 |
| 1998 | 38 | 0 |
| 1999 | 44 | 0 |
| 2000 | 22 | 0 |
| 2001 | 42 | 10 |
| 2002 | 38 | 26 |
| 2003 | 38 | 25 |
| 2004 | 54 | 42 |
| 2005 | 30 | 38 |
| 2006 | 30 | 29 |
| 2007 | 19 | 37 |
| 2008 | 16 | 30 |
| 2009 | 14 | 34 |
| 2010 | 19 | 47 |
| 2011 | 20 | 20 |
| 2012 | 37 | 43 |
| 2013 | 25 | 70 |
| 2014 | 40 | 50 |
| 2015 | 38 | 85 |
| 2016 | 52 | 73 |
| 2017 | 53 | 63 |
| 2018 | 55 | 68 |
| 2019 | 78 | 68 |
| 2020 | 57 | 53 |
| 2021 | 43 | 49 |
| 2022 | 52 | 37 |
| 2023 | 36 | 57 |
| 2024 | 25 | 34 |
| 2025 | 30 | 20 |
| 2026 | 19 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23H 7/02Wire-cutting1,158
- B23H 7/26Apparatus for moving or positioning electrode relatively to workpiece505
- B23H 7/14Electric circuits specially adapted therefor431
- B23H 7/36Supply or regeneration of working media70
- B23H 7/38Influencing metal working by using specially adapted means not directly involved in55
- B23H 7/12Rotating-disc electrodes33
- B23H 7/22Electrodes specially adapted therefor or their manufacture33
- B23H 7/34Working media15
Recent patents
- Electric discharge machining apparatus and method for fixing power conductor in electric discharge machining apparatus28 Jul 2026US 12,691,515 B2Sodick Co., Ltd.
- Horizontal wire electrical discharge machining28 Jul 2026US 12,691,516 B2EDM Network, Inc.
- Sealing device and wire electrical discharge machine28 Jul 2026US 12,691,517 B2Fanuc Corporation
- Wire electric discharge machining apparatus7 Jul 2026US 12,673,376 B2Sodick Co., Ltd.
- Machine for storing in-machining information and a comparison result7 Jul 2026US 12,673,393 B2Fanuc Corporation
- Sealing device1 Oct 2026US 2026/0295700 A1Fanuc Corporation
- Wire electrical discharge machining apparatus, wire electrical discharge machining method, and wafer manufacturing method24 Sep 2026US 2026/0284764 A1Mitsubishi Electric Corporation
- Small-hole electrical discharge machine6 Aug 2026US 2026/0225168 A1Elenix, Inc.
- Device and method for electrochemical machining6 Aug 2026US 2026/0225169 A1MTU Aero Engines AG
- Substrate processing device including light source6 Aug 2026US 2026/0225170 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Heterogeneous composite bodies with isolated cermet regions formed by high temperature, rapid consolidation253US 9,943,918 B2Powdermet, Inc. · 2018
- Position feedback control system217US 6,519,860 B1Sandia Corporation · 2003
- Method and apparatus for orienting the wire guidance heads on spark erosion cutting equipment for eroding with a great wire slope197US 4,431,896 AAG fur industrielle Elektronik AGIE · 1984
- Method of and apparatus for dispensing wire from a wire storage spool93US 4,530,471 AInoue-Japax Research Incorporated · 1985
- Elastic element for the use in a stabilization device for bones and vertebrae and method for the manufacture of such elastic element78US 7,833,256 B2Biedermann Motech GmbH · 2010