B23H 1/02
Electric circuits specially adapted therefor
Official title: Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges
B23H1/02 (Electric circuits specially adapted therefor) appears on 525 US grants and 344 published applications in this corpus.
Search patents in B23H- Granted patents
- 525
- Published applications
- 344
- Assignees
- 122
- Inventors
- 610
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 10 | 0 |
| 1984 | 16 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 3 |
| 2002 | 14 | 8 |
| 2003 | 11 | 6 |
| 2004 | 10 | 11 |
| 2005 | 11 | 6 |
| 2006 | 6 | 6 |
| 2007 | 3 | 9 |
| 2008 | 1 | 11 |
| 2009 | 5 | 4 |
| 2010 | 7 | 15 |
| 2011 | 5 | 8 |
| 2012 | 9 | 10 |
| 2013 | 7 | 28 |
| 2014 | 13 | 21 |
| 2015 | 13 | 35 |
| 2016 | 23 | 27 |
| 2017 | 26 | 17 |
| 2018 | 23 | 27 |
| 2019 | 25 | 22 |
| 2020 | 20 | 15 |
| 2021 | 16 | 13 |
| 2022 | 20 | 7 |
| 2023 | 13 | 17 |
| 2024 | 6 | 6 |
| 2025 | 7 | 4 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Wire spark machining apparatus and method for producing semiconductor wafer26 May 2026US 12,636,722 B2Mitsubishi Electric Corporation
- Diagnostic device for power supply device for electric discharge machine7 Apr 2026US 12,596,158 B2Makino Milling Machine Co., Ltd.
- Control device, electrodischarge machining apparatus, and control method24 Sep 2026US 2026/0284763 A1Fanuc Corporation
- Wire electrical discharge machining apparatus, wire electrical discharge machining method, and wafer manufacturing method16 Jul 2026US 2026/0199995 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
- System and method for characterizing an electrical discharge drilling process using ultrasound30 Apr 2026US 2026/0115820 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Electrostatic precipitator power supply69US 4,808,200 ASiemens Aktiengesellschaft · 1989
- Circuit board unit and method for production thereof52US 7,948,758 B2Agie Charmilles SA · 2011
- Pulse generator spark-erosive metal working32US 4,766,281 AAG fur industrielle Elektronik AGIE Losone bei Locarno · 1988
- Electrical discharge machining apparatus with exchangeable electrode refeed cartridge31US 4,814,573 AEx-Cell-O Corporation · 1989
- Method of and apparatus for electrical discharge machining a small and deep hole into or through a workpiece28US 4,393,292 AInoue-Japax Research Incorporated · 1983