William C. Schafer
6Patents
6h-index
6Co-inventors
56Inventor score
Filing activity: Nov 15, 1979 → Dec 15, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4345430A | Automotive catalytic converter exhaust system | Emerging Cross-Sectional Technologies | 64 | Expired |
| US7096900B2 | Tree cutting attachment for work vehicle | Human Necessities | 13 | Expired |
| US6871485B2 | Tree cutting attachment for skid loader | Human Necessities | 12 | Expired |
| US7025147B2 | Apparatus for, and method of, landing items at a well location | Fixed Constructions | 10 | Expired |
| US7850107B2 | Rotor for tree mulching machine | Performing Operations; Transporting | 8 | Active |
| US7997849B2 | Grain bag unloader | Human Necessities | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.