William A. Barr
21Patents
8h-index
8Co-inventors
68Inventor score
Filing activity: Aug 24, 1982 → May 12, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8540318B2 | Vehicle seating frame attachment assembly, and method of making the same | Emerging Cross-Sectional Technologies | 52 | Active |
| US5673972A | Vehicle seat assembly | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5015991A | Alarm system for vehicle automatic transmission | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5820214A | Vehicle seat cushion assembly | Performing Operations; Transporting | 18 | Expired |
| US6226882A | Cutout marking device for marking sheet material | Performing Operations; Transporting | 18 | Expired |
| US4576261A | Safety parking brake for automatic transmissions | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4518066A | Safety parking brake for automatic transmissions | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6470585B2 | Marking device with integral self-hinged contact pad | Performing Operations; Transporting | 10 | Expired |
| US6300868A | Vehicle automatic transmission safety system | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6124789A | Vehicle automatic transmission shift lever alarm system | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7334342B1 | Marking device having marking members | Performing Operations; Transporting | 6 | Expired |
| US5760683A | Vehicle door lock, shift lever interlock system | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5581233A | Vehicle door lock, shift lever interlock system | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4455036A | King pin for tractor trailer fifth wheel coupling | Performing Operations; Transporting | 4 | Expired |
| US4509624A | Parking brake safety mechanism for automatic transmissions | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6948257B1 | Marking device with self-hinged contact plate and marking members | Performing Operations; Transporting | 3 | Expired |
| US4668020A | Valve assembly for use in brake pressure control unit | Performing Operations; Transporting | 3 | Expired |
| US5926088A | Vehicle automatic transmission shift lever alarm system | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4549745A | Fifth wheel coupler | Performing Operations; Transporting | 3 | Expired |
| US4640554A | Valve assembly for use in brake pressure control unit | Performing Operations; Transporting | 2 | Expired |
| US4613189A | Valve assembly for use in brake pressure control unit | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.