John M. Check
13Patents
8h-index
12Co-inventors
69Inventor score
Filing activity: Feb 27, 1976 → Mar 16, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4814573A | Electrical discharge machining apparatus with exchangeable electrode refeed cartridge | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5940895A | Heated toilet seat | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5498150A | High thermal capacity mold assembly | Performing Operations; Transporting | 27 | Expired |
| US4739145A | System for positioning and transferring EDM electrodes | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4639568A | Apparatus and method for finishing fuel injector spray tips using EDM | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4703142A | Method of combining grinding and EDM operation for finishing fuel injector nozzle bodies | Performing Operations; Transporting | 10 | Expired |
| US4191878A | Electrode positioning gage for multiple electrode electrical discharge machining apparatus | Performing Operations; Transporting | 8 | Expired |
| US4721839A | Combined bore seat face grinding, EDM and lapping method for finishing fuel injector nozzle bodies | Performing Operations; Transporting | 8 | Expired |
| US6425752B1 | Bubbler tube with integral inlet pipe and bimetal core for injection molding tools and method of making the bubbler tube | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4044216A | Multiple electrode electrical discharge machining | Performing Operations; Transporting | 7 | Expired |
| US4782203A | Wire guide for electric discharge machine | Performing Operations; Transporting | 6 | Expired |
| US4195448A | Two-point contact steady rest follower | Performing Operations; Transporting | 4 | Expired |
| US4644125A | D.C. motor driven EDM head | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.