Gary W. Scheffel
17Patents
11h-index
13Co-inventors
69Inventor score
Filing activity: Aug 2, 1976 → Jun 1, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4671490A | Diaphragm valve | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US6848672B2 | Mounting bracket for valve actuator | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4750709A | Diaphragm valve | Emerging Cross-Sectional Technologies | 30 | Expired |
| US7337805B2 | Valve with adjustable stop | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4637430A | Check valve | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4732363A | Diaphragm valve | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7252032B2 | Fluid actuator | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4840191A | Inflatable valve | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4964423A | Check valve | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4790348A | Low pressure relief valve | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4856555A | Check valve | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4687180A | Metering valve | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4659061A | Seal ring shutoff stem tip | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6669168B2 | Quick connect coupling | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4087972A | Brake booster with spring type ratio changer | Performing Operations; Transporting | 5 | Expired |
| US4687181A | Metering valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4659060A | Stem tip seal | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.