B23H 7/14
Electric circuits specially adapted therefor
Official title: Electric circuits specially adapted therefor, e.g. power supply {(B23H3/02 takes precedence)}
B23H7/14 (Electric circuits specially adapted therefor) appears on 431 US grants and 313 published applications in this corpus.
Search patents in B23H- Granted patents
- 431
- Published applications
- 313
- Assignees
- 116
- Inventors
- 563
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 10 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 11 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 3 |
| 2003 | 9 | 2 |
| 2004 | 10 | 9 |
| 2005 | 6 | 4 |
| 2006 | 5 | 4 |
| 2007 | 3 | 3 |
| 2008 | 2 | 10 |
| 2009 | 4 | 6 |
| 2010 | 3 | 10 |
| 2011 | 2 | 1 |
| 2012 | 6 | 14 |
| 2013 | 11 | 19 |
| 2014 | 11 | 18 |
| 2015 | 7 | 26 |
| 2016 | 21 | 18 |
| 2017 | 18 | 20 |
| 2018 | 20 | 31 |
| 2019 | 27 | 17 |
| 2020 | 24 | 19 |
| 2021 | 11 | 19 |
| 2022 | 20 | 9 |
| 2023 | 17 | 24 |
| 2024 | 7 | 11 |
| 2025 | 11 | 10 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Diagnostic device for power supply device for electric discharge machine7 Apr 2026US 12,596,158 B2Makino Milling Machine Co., Ltd.
- Micro-electric discharge milling machine with spark control10 Mar 2026US 12,569,923 B1King Saud University
- Multiwire electric discharge machine and multiwire electric discharge machining system24 Feb 2026US 12,558,733 B2Mitsubishi Electric Corporation
- Automated iterative electrode fabrication for pulsed electrochemical machining18 Nov 2025US 12,472,571 B2ROLLS-ROYCE plc
- Wire electric discharge machine, correction device, and correction method4 Nov 2025US 12,459,043 B2Fanuc Corporation
- Wire electrical discharge machining apparatus, wire electrical discharge machining method, and wafer manufacturing method24 Sep 2026US 2026/0284764 A1Mitsubishi Electric Corporation
- Ultrasonic measurement of electrode depth while electrical discharge machining2 Jul 2026US 2026/0183855 A1GE Infrastructure Technology LLC
- Measurement of electrode depth while electrical discharge machining11 Jun 2026US 2026/0158573 A1
- Method and system for controlling machining accuracy of wire electrochemical trimming for complex profile2 Apr 2026US 2026/0091438 A1Nanjing University of Aeronautics and Astronautics
- Wire electrical discharge machining equipment for different workpiece heights5 Feb 2026US 2026/0034597 A1Accutex Technologies Co., Ltd.
Most cited
By later US patents
- Adaptive control system and method for electrical discharge machining39US 4,071,729 AColt Industries Operating Corp. · 1978
- Process control for electrical discharge machining apparatus39US 4,361,745 ARaycon Corporation · 1982
- Method and apparatus for predicting a characteristic of a product attribute formed by a machining process using a model of the process35US 6,850,874 B1United Technologies Corporation · 2005
- Electric spark machine29US 5,248,867 AMitsubishi Denki Kabushiki Kaisha · 1993
- Device and process for electrical-discharge machining of a three-dimensional cavity with a thin rotating tool electrode27US 5,354,961 ACharmilles Technologies S.A. · 1994