Rolls-Royce Motor Cars Limited
26Patents
0Active
26Granted
30Portfolio score
Filing activity: Sep 17, 1987 → Nov 21, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5670845A | Vehicle electronic control apparatus | Performing Operations; Transporting | 139 | Expired |
| US4883296A | Handle assembly | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4901703A | Crankcase ventilation system for a reciprocating internal combustion engine | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US5375881A | Energy absorption system including a U-shaped deformable member and a deforming member | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| USD410216S | Automobile | General | 12 | Expired |
| US5186694A | Differential assembly | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| USD353351S | Automobile | General | 11 | Expired |
| US5729980A | Internal combustion engines | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD374198S | Automobile | General | 8 | Expired |
| USD373978S | Automobile | General | 7 | Expired |
| USD388365S | Automobile | General | 7 | Expired |
| US4917654A | Belt tensioning arrangement | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| USD368879S | Motor vehicle | General | 6 | Expired |
| USD371329S | Motor vehicle | General | 5 | Expired |
| US4815552A | Rack and pinion gear | Performing Operations; Transporting | 5 | Expired |
| US4998953A | Lock with an externally mountable escutcheon | Emerging Cross-Sectional Technologies | 4 | Expired |
| USD396020S | Automobile | General | 4 | Expired |
| USD372441S | Motor vehicle | General | 2 | Expired |
| USD353350S | Automobile | General | 2 | Expired |
| USD402921S | Automobile | General | 2 | Expired |
| USD374197S | Automobile | General | 2 | Expired |
| USD373977S | Automobile | General | 0 | Expired |
| USD384306S | Automobile | General | 0 | Expired |
| USD390164S | Automobile | General | 0 | Expired |
| US5020372A | Pressure measurement devices | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.