B23H 3/00
Electrochemical machining, i.e. removing metal by passing current between an electrode and
Official title: Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
B23H3/00 (Electrochemical machining, i.e. removing metal by passing current between an electrode and) appears on 447 US grants and 454 published applications in this corpus.
Search patents in B23H- Granted patents
- 447
- Published applications
- 454
- Assignees
- 242
- Inventors
- 1,045
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 13 | 0 |
| 1990 | 2 | 0 |
| 1991 | 13 | 0 |
| 1992 | 11 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 3 |
| 2002 | 11 | 13 |
| 2003 | 12 | 25 |
| 2004 | 13 | 22 |
| 2005 | 9 | 24 |
| 2006 | 5 | 16 |
| 2007 | 18 | 15 |
| 2008 | 5 | 8 |
| 2009 | 11 | 8 |
| 2010 | 5 | 17 |
| 2011 | 9 | 17 |
| 2012 | 6 | 16 |
| 2013 | 10 | 13 |
| 2014 | 11 | 9 |
| 2015 | 9 | 32 |
| 2016 | 10 | 23 |
| 2017 | 16 | 22 |
| 2018 | 24 | 26 |
| 2019 | 18 | 29 |
| 2020 | 20 | 13 |
| 2021 | 11 | 15 |
| 2022 | 18 | 17 |
| 2023 | 10 | 28 |
| 2024 | 13 | 20 |
| 2025 | 17 | 9 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrochemical machining device22 Sep 2026US 12,741,331 B2Kabushiki Kaisha Toyota Jidoshokki
- Pulsed electrochemical machining18 Aug 2026US 12,708,952 B2ROLLS-ROYCE plc
- Revolving cathode tool and method for co-rotating electrochemical machining of inner wall of aero-engine casing30 Jun 2026US 12,667,899 B2Nanjing University of Aeronautics and Astronautics
- Manufacturing device for electrochemical machining of a component, in particular a turbine component, method for electrochemical machining of a component, and component5 May 2026US 12,617,033 B2MTU Aero Engines AG
- Tungsten wire, and tungsten wire processing method and electrolytic wire using the same24 Feb 2026US 12,559,823 B2Niterra Materials Co., Ltd.
- Electrochemical machining apparatuses for thin metal strips and machining methods thereof24 Sep 2026US 2026/0284765 A1Taiyuan University of Technology
- Cathode tool, method and system for counter-rotating electrochemical machining with internal flushing17 Sep 2026US 2026/0273638 A1Nanjing University of Aeronautics and Astronautics
- Workpiece frame with locating features for machine tools17 Sep 2026US 2026/0273639 A1ROLLS-ROYCE plc
- Method for producing an embossing tool for bipolar plates and embossing tool20 Aug 2026US 2026/0241432 A1ElringKlinger AG
- Device and method for electrochemical machining6 Aug 2026US 2026/0225169 A1MTU Aero Engines AG
Most cited
By later US patents
- Electrochemical metal removal technique for planarization of surfaces255US 5,567,300 AIBM Corporation · 1996
- Device providing electrical contact to the surface of a semiconductor workpiece during metal plating86US 6,497,800 B1Nutool, Inc. · 2002
- Electrochemical polishing method60US 4,125,444 AInoue-Japax Research Incorporated · 1978
- Four-axis ECM machine and method of operation51US 5,149,405 ALehr Precision, Inc. · 1992
- Electrolyte composition and treatment for electrolytic chemical mechanical polishing37US 6,899,804 B2APPLIED Materials.Inc. · 2005