Frank Kleefeldt
52Patents
27h-index
23Co-inventors
88Inventor score
Filing activity: Nov 30, 1976 → Oct 25, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5802894A | Central locking system for an automotive vehicle with structurally identical door locks | Emerging Cross-Sectional Technologies | 136 | Expired |
| US4135377A | Central locking equipment for vehicle doors | Emerging Cross-Sectional Technologies | 86 | Expired |
| US4364249A | Central door-lock system for motor vehicles | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5561420A | Motor-vehicle central lock system with transponder in key | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4686529A | Remote-control lock system | Physics | 70 | Expired |
| US4342209A | Central vehicle door-lock system | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4518180A | Automobile power door latch | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4895009A | Door-locking system for a motor vehicle | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4165112A | Motor-vehicle door latch | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4735447A | Three-part vehicle-door latch | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5836639A | Motor-vehicle sliding-door system with electronic controller | Fixed Constructions | 44 | Expired |
| US4974886A | Motor-vehicle door latch with antitheft override | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5419597A | Power-actuated motor-vehicle door latch with antitheft override | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6338508B1 | Motor-vehicle latch system with power open | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4978154A | Power-actuated motor-vehicle door latch with antitheft feature | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5056343A | Actuator for power door latch | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5441315A | Electric-motor drive for motor-vehicle central lock system | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5603539A | Motor-vehicle door latch with exchangeable lock linkage | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5423582A | Power-assist motor-vehicle door latch | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4440006A | Antitheft central lock system for a motor vehicle | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5078436A | Motor-vehicle door with antitheft override | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4320639A | Drivers door lock for vehicular antitheft lock system | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5697236A | Motor-vehicle door latch for remote actuation | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5785364A | Servo-tightening motor-vehicle door latch | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5699685A | Central lock system for an automotive vehicle with satellite processors at respective locks | Emerging Cross-Sectional Technologies | 29 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.