James R. Clark
26Patents
9h-index
28Co-inventors
75Inventor score
Filing activity: Dec 24, 1975 → Jun 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5626117A | Electronic ignition system with modulated cylinder-to-cylinder timing | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5559286A | Vehicle friction material condition measurement system | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4022643A | Methods of manufacturing embossed resinous products | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6578783B2 | Method and apparatus for sorting recyclable products | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6422493B1 | Method and apparatus for sorting recyclable products | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6974097B2 | Method and apparatus for sorting recyclable products | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5044475A | Rotary drum brake assembly bracket | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4069991A | Chock for rock climbing | Human Necessities | 13 | Expired |
| US5934415A | Brake actuator service limit sensor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4432404A | Ice axe | Performing Operations; Transporting | 9 | Expired |
| US7055662B1 | Vehicle axle beam and brake assembly | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US8109691B2 | Apparatus and method for on site pouring of pre-stressed concrete structures | Fixed Constructions | 8 | Active |
| US4744729A | Pressure activated pump-off control | Physics | 8 | Expired |
| US7175009B2 | Cam actuated drum brake | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4478137A | Hydraulic brake actuator | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US8887878B2 | Variable position anchor assembly for adjusting brake shoes in a drum brake | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US4469015A | Emergency and service brake actuator | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7543692B2 | Cam actuated drum brake | Emerging Cross-Sectional Technologies | 3 | Active |
| US4266498A | Rope securing device | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6942810B2 | Method for treating metal-containing solutions | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10899479B2 | Shape memory alloy (SMA) hinge apparatus, and systems and methods employing same | Fixed Constructions | 1 | Active |
| US10826609B2 | Liquid-lens based optical steering system for free-space laser communication | Physics | 0 | Active |
| US7194955B1 | Printing press ink fountain adjustment system | Performing Operations; Transporting | 0 | Expired |
| US6932536B2 | Multi-body assembly connected by a threaded fastener | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6977049B2 | Treatment process for industrial waste stream | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.