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 1/10: Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric Supply or regeneration of working media
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12222740 | Electric discharge machine | Apr 19, 21 | Feb 11, 25 | FANUC CORPORATION |
| 12134053 | Filtration media especially useful for filtering fluids associated with wire electron discharge machining (WEDM) processes | Apr 16, 19 | Nov 05, 24 | Ahlstrom Oyj |
| 12134158 | Electro-hydraulic combined system used for electro machining and supporting automatic tool changing | Nov 17, 21 | Nov 05, 24 | Not available |
| 11858055 | Cutting electrode head for a handheld electrical discharge machining device | Sep 15, 20 | Jan 02, 24 | Rolls-Royce plc |
| 11794264 | Electro-hydraulic combined device | Nov 17, 21 | Oct 24, 23 | Shanghai Jiao Tong University |
| 11660693 | Electric discharge machine | Mar 17, 21 | May 30, 23 | Sodick Co. Ltd. |
| 11541384 | Ion exchange device main body and ion exchange device | Jun 27, 19 | Jan 03, 23 | SUN MAINTENANCE KOKI CO., LTD. |
| 11504785 | Wire electrical discharge machine and control method | Jul 27, 20 | Nov 22, 22 | FANUC CORPORATION |
| 11491566 | Electric discharge machining assembly | Jun 18, 20 | Nov 08, 22 | Rolls Royce plc |
| 11471788 | Ion exchange resin bag and ion exchange device | Jun 27, 19 | Oct 18, 22 | SUN MAINTENANCE KOKI CO., LTD. |
| 11465222 | Electric discharge machining unit of electric discharge machining apparatus | Jun 11, 20 | Oct 11, 22 | Sodick Co. Ltd. |
| 11440113 | Electrode and method for manufacturing the same | Sep 03, 19 | Sep 13, 22 | General Electric Company |
| 11440114 | Wire electric discharge machining method and wire electric discharge machine | May 13, 20 | Sep 13, 22 | Sodick Co. Ltd. |
| 11433468 | Electrode for an electro-erosion process and an associated method thereof | May 20, 19 | Sep 06, 22 | General Electric Company |
| 11247282 | Electric discharge machining apparatus | Jun 20, 19 | Feb 15, 22 | Sodick Co. Ltd. |
| 11229967 | Wire electrical discharge machine and placement time calculation method | Sep 19, 17 | Jan 25, 22 | FANUC CORPORATION |
| 11179789 | Electric discharge machining device | Jan 10, 19 | Nov 23, 21 | Sodick Co. Ltd. |
| 10960478 | Electric discharge machine | Feb 14, 19 | Mar 30, 21 | FANUC CORPORATION |
| 10876951 | Self-learning filter lifetime estimation method | Mar 14, 18 | Dec 29, 20 | Agie Charmilles SA |
| 10870160 | Wire electric discharge machine | Oct 11, 17 | Dec 22, 20 | FANUC CORPORATION |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0073,797 | Electrical Discharge Machine and Tool Thereof | Aug 30, 24 | Mar 06, 25 | Not available |
| 2025/0065,427 | Electrical Discharge Machine | Aug 21, 24 | Feb 27, 25 | Not available |
| 2025/0050,257 | Filtration media especially useful for filtering fluids associated with wire electron discharge machining (WEDM) processes | Oct 31, 24 | Feb 13, 25 | Ahlstrom Oyj |
| 2024/0207,958 | WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS AND WIRE ELECTRICAL DISCHARGE MACHINING METHOD | May 07, 21 | Jun 27, 24 | Mitsubishi Electric Corporation |
| 2024/0165,724 | ELECTRICAL DISCHARGE MACHINING SYSTEM WITH INTEGRATED FLUSHING | Nov 22, 22 | May 23, 24 | Not available |
| 2024/0082,935 | ELECTRIC DISCHARGE MACHINE AND ELECTRIC DISCHARGE MACHINING METHOD | Aug 08, 23 | Mar 14, 24 | Sodick Co. Ltd. |
| 2024/0051,049 | ELECTRICAL-DISCHARGE MACHINING | Jul 27, 23 | Feb 15, 24 | Rolls Royce plc |
| 2019/0084,064 | DIELECTRIC WORKING FLUID PROCESSOR AND CONTROL METHOD OF DIELECTRIC WORKING FLUID PROCESSOR | Sep 17, 18 | Mar 21, 19 | FANUC CORPORATION |
| 2017/0341,172 | WIRE ELECTRICAL DISCHARGE MACHINING SYSTEM | May 22, 17 | Nov 30, 17 | FANUC CORPORATION |
| 2017/0239,741 | DIELECTRIC WORKING FLUID CENTRALIZED MANAGEMENT SYSTEM | Feb 21, 17 | Aug 24, 17 | FANUC CORPORATION |
| 2017/0165,769 | MACHINING FLUID LEVEL ADJUSTING MECHANISM FOR WIRE ELECTRIC DISCHARGE MACHINE | Dec 08, 16 | Jun 15, 17 | FANUC CORPORATION |
| 2017/0087,656 | WIRE ELECTRIC DISCHARGE MACHINE | Sep 27, 16 | Mar 30, 17 | FANUC CORPORATION |
| 2017/0056,990 | ELECTRICAL DISCHARGE MACHINE HAVING CONCENTRATION DETECTION FUNCTION FOR RUST INHIBITOR CONTAINING ORGANIC COMPOUND | Aug 26, 16 | Mar 02, 17 | FANUC CORPORATION |
| 2016/0361,770 | DYNAMIC ADAPTIVE FLUSHING FOR WORKPIECE EROSION | Jul 18, 16 | Dec 15, 16 | PERFECT POINT EDM CORPORATION |
| 2016/0067,806 | ELECTRONIC DISCHARGE MACHINE | Sep 08, 15 | Mar 10, 16 | FANUC CORPORATION |
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