William M. Stewart
10Patents
8h-index
13Co-inventors
69Inventor score
Filing activity: Mar 17, 1980 → Jul 26, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4775017A | Drilling using downhole drilling tools | Fixed Constructions | 54 | Expired |
| US4807708A | Directional drilling of a drill string | Fixed Constructions | 52 | Expired |
| US5816587A | Method and apparatus for reducing brake shudder | Performing Operations; Transporting | 39 | Expired |
| US5974856A | Method for allowing rapid evaluation of chassis elastomeric devices in motor vehicles | Performing Operations; Transporting | 30 | Expired |
| US4274246A | Universal bit apparatus | Performing Operations; Transporting | 13 | Expired |
| US4884665A | Automotive shock absorber with unitary striker plate and closure cap | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4796704A | Drop ball sub-assembly for a down-hole device | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4844179A | Drill string stabilizer | Fixed Constructions | 8 | Expired |
| US6295863A | Method and apparatus for determining seal failure in a ball joint | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5992583A | Method of stabilizing valve lift-off in hydraulic shock absorbers | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.