Charles R. Johnson
16Patents
10h-index
17Co-inventors
69Inventor score
Filing activity: Jun 13, 1974 → Jun 8, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4738127A | Automobile steering lock | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4112372A | Spread spectrum communication system | Electricity | 88 | Expired |
| US4468793A | Global position system (GPS) multiplexed receiver | Physics | 53 | Expired |
| USD289491S | Automobile steering lock | General | 45 | Expired |
| US4856308A | Automobile steering lock | Emerging Cross-Sectional Technologies | 36 | Expired |
| USD306252S | Automobile steering wheel lock arm | General | 35 | Expired |
| US4122755A | Self-locking chuck | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5134757A | Quick release fastener | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5024069A | Anti-theft locking apparatus for steering wheels | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4131054A | High speed spindle and draw bar assembly | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7325816B2 | Motorcycle dolly | Performing Operations; Transporting | 10 | Expired |
| USD419830S | Cooler | General | 8 | Expired |
| US4124306A | Vent for devolatilizing screw press | Performing Operations; Transporting | 6 | Expired |
| US4148246A | High speed spindle and draw bar assembly | Emerging Cross-Sectional Technologies | 6 | Expired |
| US3939990A | Automatic roughneck | Fixed Constructions | 5 | Expired |
| US4437447A | Exhaust recycle to carburetor of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.