Roy E. Bartholomew
8Patents
4h-index
10Co-inventors
50Inventor score
Filing activity: Mar 6, 1975 → Jun 13, 1986
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4646840A | Flotation riser | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US4714483A | Air dryer purge control for turbocharged compressors | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4550953A | Electro-pneumatic control for a vehicle fluid pressure braking system | Performing Operations; Transporting | 14 | Expired |
| US4368926A | Brake proportioning system | Performing Operations; Transporting | 13 | Expired |
| US3953079A | Fluid pressure braking system including a pressure differential responsive valve device | Performing Operations; Transporting | 4 | Expired |
| US4605262A | Three way check valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4691968A | Dual circuit brake valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4660894A | Proportioning brake valve with dual area secondary piston | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.