Class B23H : WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
Subclass 3/04: Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12240050 | Method and apparatus for machining components by means of electrochemical machining | Jul 22, 20 | Mar 04, 25 | MTU Aero Engines AG |
| 12220757 | Dual head pECM | Apr 28, 22 | Feb 11, 25 | Rolls-Royce Corporation |
| 12097567 | Methods and apparatuses of oscillatory pulsed electrochemical machining | Dec 30, 21 | Sep 24, 24 | Voxel Innovations, Inc. |
| 12023750 | Multi-channel electrochemical machining device and method for blisk | Apr 24, 23 | Jul 02, 24 | Nanjing University of Aeronautics and Astronautics |
| 11980959 | Electrochemical machining of geometrically complex passages | Mar 09, 22 | May 14, 24 | Textron Innovations Inc. |
| 11759876 | Pulse dynamic electrochemical machining apparatus and method for rapidly leveling surface of revolving part | Jul 25, 22 | Sep 19, 23 | NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS |
| 11745279 | System and method for machining workpiece and article machined therefrom | May 05, 17 | Sep 05, 23 | General Electric Company |
| 11471966 | Work station for electrochemically machining a workpiece, in particular a rotationally symmetrical workpiece, comprising a plurality of recesses, and method for producing an end contour of a recess | Jan 25, 19 | Oct 18, 22 | MTU Aero Engines AG |
| 11450530 | Substrate processing apparatus and substrate processing method | Mar 19, 21 | Sep 20, 22 | Tokyo Electron Limited |
| 11433468 | Electrode for an electro-erosion process and an associated method thereof | May 20, 19 | Sep 06, 22 | General Electric Company |
| 11426812 | Machining apparatus and machining system | Sep 22, 16 | Aug 30, 22 | General Electric Company |
| 11383314 | Tool for machining festoons and attachment holes of a disc flange by PECM and method using this tool | Aug 28, 19 | Jul 12, 22 | SAFRAN AIRCRAFT ENGINES |
| 11376681 | Electromechanical machining method, method of manufacturing perforated material, processing electrode, and electromechanical machining system | Jul 02, 18 | Jul 05, 22 | MITSUBISHI POWER, LTD. |
| 11332846 | Hand-held cathode structure and electrolytic-polishing apparatus including the same | Nov 04, 20 | May 17, 22 | Not available |
| 11331737 | Device for insulating cathode surface in electrochemical machining | Jul 06, 18 | May 17, 22 | Jiangsu University |
| 11253938 | Device and method for producing a blade airfoil | Sep 02, 16 | Feb 22, 22 | MTU Aero Engines AG |
| 11241751 | Drilling tool for use in machining a conductive work piece | Apr 01, 19 | Feb 08, 22 | General Electric Company |
| 11179790 | Electrode, electrochemical machining apparatus using the electrode, electrochemical machining method, and product machined by the method | Apr 17, 20 | Nov 23, 21 | Hoden Seimitsu Kako Kenkyusho Co. Ltd. |
| 11161190 | Electrode for electroerosion machining system | May 28, 15 | Nov 02, 21 | General Electric Company |
| 11135667 | Machining position correcting device and electrochemical machining device | Dec 27, 18 | Oct 05, 21 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0018,485 | REVOLVING CATHODE TOOL AND METHOD FOR CO-ROTATING ELECTROCHEMICAL MACHINING OF INNER WALL OF AERO-ENGINE CASING | Jul 13, 23 | Jan 16, 25 | Not available |
| 2024/0383,060 | Method Of Forming A Recess In A Workpiece | Oct 17, 22 | Nov 21, 24 | Not available |
| 2024/0375,200 | ELECTROCHEMICAL TREATMENT DEVICE | Sep 19, 22 | Nov 14, 24 | Not available |
| 2024/0286,214 | SYSTEMS AND FIXTURES FOR ELECTRODE CONNECTIONS | Feb 27, 24 | Aug 29, 24 | Not available |
| 2024/0253,141 | ELECTRODE ASSEMBLY AND ELECTROCHEMICAL MACHINING METHOD | Apr 27, 22 | Aug 01, 24 | Not available |
| 2024/0207,959 | METHOD OF ELECTROCHEMICALLY MACHINING AND ELECTRODE | Apr 27, 22 | Jun 27, 24 | Not available |
| 2024/0139,843 | METHOD AND ELECTRODE FOR MACHINING COMPONENTS BY ELECTROCHEMICAL MACHINING | Oct 06, 20 | May 02, 24 | MTU Aero Engines AG |
| 2024/0109,142 | PULSED ELECTROCHEMICAL MACHINING | Sep 30, 22 | Apr 04, 24 | Not available |
| 2023/0347,431 | NON-ELECTROLYTIC DEPOSITION OF ELECTRODE FOR PULSED ELECTROCHEMICAL MACHINING | Apr 29, 22 | Nov 02, 23 | Not available |
| 2021/0354,221 | ELECTROLYTIC PROCESSING APPARATUS AND METHOD THEREOF | Sep 25, 20 | Nov 18, 21 | Not available |
| 2021/0178,501 | TOOL FOR MACHINING FESTOONS AND ATTACHMENT HOLES OF A DISC FLANGE BY PECM AND METHOD USING THIS TOOL | Aug 28, 19 | Jun 17, 21 | SAFRAN AIRCRAFT ENGINES |
| 2020/0171,592 | METHOD FOR MANUFACTURING CONE BY ELECTROCHEMICAL MACHINING | Dec 04, 18 | Jun 04, 20 | Not available |
| 2019/0290,809 | PATTERN TRANSFER DEVICE FOR MASS TRANSFER OF MICRO-PATTERNS ONTO MEDICAL DEVICES | Apr 16, 19 | Sep 26, 19 | Not available |
| 2018/0333,795 | DEVICE FOR THE ELECTROCHEMICAL PROCESSING OF A METAL WORKPIECE | May 15, 18 | Nov 22, 18 | Not available |
| 2018/0272,449 | MACHINING APPARATUS AND MACHINING SYSTEM | Sep 22, 16 | Sep 27, 18 | Not available |
| 2018/0272,450 | EDM DRILLING OF CERAMICS AND DEVICE | Sep 07, 16 | Sep 27, 18 | Not available |
| 2018/0161,897 | INDUCTIVE ELECTROCHEMICAL MACHINING DEVICE | Dec 09, 16 | Jun 14, 18 | Not available |
| 2018/0161,898 | ELECTROCHEMICAL MACHINING DEVICE | Dec 12, 16 | Jun 14, 18 | Not available |
| 2017/0368,626 | Electrochemical Removal Of Material From A Workpiece | Jan 07, 16 | Dec 28, 17 | SIEMENS AKTIENGESELLSCHAFT |
| 2017/0266,743 | APPARATUS AND METHOD FOR MAKING EXTRUSION DIES | Nov 20, 15 | Sep 21, 17 | CORNING INCORPORATED |
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