B23H 3/02
Electric circuits specially adapted therefor
Official title: Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits
B23H3/02 (Electric circuits specially adapted therefor) appears on 105 US grants and 90 published applications in this corpus.
Search patents in B23H- Granted patents
- 105
- Published applications
- 90
- Assignees
- 75
- Inventors
- 292
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 4 |
| 2004 | 2 | 3 |
| 2005 | 2 | 6 |
| 2006 | 2 | 5 |
| 2007 | 1 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 2 | 2 |
| 2011 | 2 | 4 |
| 2012 | 1 | 8 |
| 2013 | 3 | 1 |
| 2014 | 1 | 0 |
| 2015 | 2 | 6 |
| 2016 | 0 | 1 |
| 2017 | 3 | 3 |
| 2018 | 4 | 6 |
| 2019 | 3 | 7 |
| 2020 | 6 | 4 |
| 2021 | 4 | 2 |
| 2022 | 2 | 3 |
| 2023 | 4 | 9 |
| 2024 | 2 | 4 |
| 2025 | 5 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Pulsed electrochemical machining21 Oct 2025US 12,447,543 B2ROLLS-ROYCE plc
- Methods and systems of electrochemical machining3 Jun 2025US 12,320,029 B2General Electric Company
- Hydraulically operated electrochemical machining assemblies27 May 2025US 12,311,459 B2Textron Innovations Inc.
- Dual head pECM11 Feb 2025US 12,220,757 B2ROLLS-ROYCE plc
- Method and system for controlling machining accuracy of wire electrochemical trimming for complex profile2 Apr 2026US 2026/0091438 A1Nanjing University of Aeronautics and Astronautics
- Methods and systems of electrochemical machining28 Aug 2025US 2025/0270730 A1General Electric Company
- Device and Method for Plasma-Electrolytic Machining of the Electrically Conductive Surface of a Workpiece by Electrolyte Jets17 Apr 2025US 2025/0121445 A1
- Electrochemical treatment device14 Nov 2024US 2024/0375200 A1Ensitech IP Pty Limited
- Systems and methods for electrochemical machining29 Aug 2024US 2024/0286213 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Electrochemical polishing method60US 4,125,444 AInoue-Japax Research Incorporated · 1978
- Electrochemical machining using modulated reverse electric fields36US 6,402,931 B1Faraday Technology Marketing Group, LLC · 2002
- Sequential electromachining and electropolishing of metals and the like using modulated electric fields27US 6,558,231 B1Faraday Technology Marketing Goup, LLC · 2003
- Method for electrochemical machining23US 4,113,587 AAgency of Industrial Science and Technology · 1978
- Shaped-tube electrolytic machining process19US 5,322,599 ACorning Incorporated · 1994