John D. Tysver
14Patents
7h-index
14Co-inventors
63Inventor score
Filing activity: Jul 25, 1986 → Aug 18, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6877306B2 | Nozzle assembly with flow divider and ecology valve | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7908896B1 | Biometric deadbolt lock assembly | Emerging Cross-Sectional Technologies | 25 | Active |
| US5052537A | Rotary travel limit stop apparatus | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4693349A | Torque limiting apparatus | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5098343A | Retractable shaft coupling | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4877120A | Actuator mechanism having adjustable stop | Physics | 9 | Expired |
| US8348630B2 | Flow compensated proportional bypass valve combined with a control valve | Emerging Cross-Sectional Technologies | 7 | Active |
| US5224390A | Direction reversing actuator apparatus | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4892360A | Brake activation apparatus and power drive unit therefor | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4909654A | Three directional load reacting mount | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4967886A | Dual function brake and manual drive actuating system | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US5083431A | Torque controlled variable displacement hydraulic motor | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US5307630A | System pressure compensated variable displacement hydraulic motor | Performing Operations; Transporting | 1 | Expired |
| US5054592A | Manual/powered operation safety device | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.