John Hartman
9Patents
5h-index
12Co-inventors
60Inventor score
Filing activity: Mar 30, 1976 → Jun 13, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4318555A | Stapler | Performing Operations; Transporting | 33 | Expired |
| US6457751B1 | Locking assembly for an astragal | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4697838A | Robot gripping jaw operator | Performing Operations; Transporting | 15 | Expired |
| UST958003I4 | Staple sensing apparatus | General | 10 | Expired |
| US4688985A | Rotary mechanism for robot arms | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4603461A | Garage door spring stretcher | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8149227B2 | Removing click and friction noise in a writing device | Physics | 5 | Active |
| US4662813A | Mechanism for rotating a robot arm on an axis | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8672333B2 | Torque transmitting apparatus for a wheel | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.