Norman E. Ritchie
9Patents
6h-index
5Co-inventors
52Inventor score
Filing activity: Feb 4, 1999 → Mar 18, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6371456B1 | Seat suspension system | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US6354556B1 | Seat suspension method | Performing Operations; Transporting | 36 | Expired |
| US6286819A | Vibration damper with latch | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6199820A | Seat suspension system controller | Performing Operations; Transporting | 13 | Expired |
| US6340152B1 | Seat suspension vibration damper | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6241209A | Seat support | Performing Operations; Transporting | 10 | Expired |
| US6647822B2 | Vehicle shifter | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6979200B2 | Apparatus for making electrical connection to a steering wheel carried portion of an electrical circuit | Electricity | 4 | Expired |
| US8489545B2 | System and method for creating and maintaining pre-task planning documents | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.