Donald E. Graham
20Patents
12h-index
19Co-inventors
78Inventor score
Filing activity: Apr 18, 1977 → Apr 15, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4105216A | Motor vehicle level control circuit | Performing Operations; Transporting | 56 | Expired |
| US4492904A | Windshield wiper system with touch control | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4768716A | Vehicle speed sensitive windshield washer control | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4431954A | Motor vehicle windshield wiper apparatus with storm pattern | Performing Operations; Transporting | 36 | Expired |
| US4398704A | Vehicle pneumatic suspension system with dead band adjustment | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4168840A | Motor vehicle level control circuit | Performing Operations; Transporting | 33 | Expired |
| US4665488A | Synchronizing wiper control | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4730152A | Vehicle power antenna control with drive stress limiting | Electricity | 24 | Expired |
| US4442169A | Multiple coated cutting tool and method for producing same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4355270A | Motor reversing circuit for vehicle windshield wiper | Performing Operations; Transporting | 17 | Expired |
| US4733101A | Vehicle power antenna control with inhibit during cranking | Electricity | 17 | Expired |
| US4567412A | Automatic wiper actuator for a vehicle window | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4343865A | Hard metal body and method of making same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4382282A | Trim control system for reduced drag | Physics | 11 | Expired |
| US4138630A | Electric motor reversing control system | Electricity | 10 | Expired |
| US6109532A | Locomotive cab heating system | Performing Operations; Transporting | 9 | Expired |
| US4288730A | Proportional and integral solenoid armature positioning control system | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4436775A | Hard metal body and method of making same | Chemistry; Metallurgy | 7 | Expired |
| US4784923A | Hard metal alloy with surface region enriched with tantalum, niobium, vanadium or combinations thereof and methods of making the same | Chemistry; Metallurgy | 6 | Expired |
| US4987351A | Load-based control of an AC motor | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.