Charles E. Steffens, Jr.
44Patents
22h-index
44Co-inventors
81Inventor score
Filing activity: Aug 31, 1992 → Jul 28, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5413378A | Method and apparatus for controlling an actuatable restraining device in response to discrete control zones | Performing Operations; Transporting | 376 | Expired |
| US5626359A | Method and apparatus for controlling an actuatable restraining device in response to discrete control zones | Performing Operations; Transporting | 180 | Expired |
| US5439249A | Vehicle occupant restraint system including occupant position sensor mounted in seat back | Performing Operations; Transporting | 126 | Expired |
| US5531472A | Apparatus and method for controlling an occupant restraint system | Physics | 107 | Expired |
| US5722686A | Method and apparatus for sensing an occupant position using capacitance sensing | Performing Operations; Transporting | 100 | Expired |
| US6025783A | Wireless switch detection system | Electricity | 86 | Expired |
| US5366242A | Apparatus for controlling inflation of an air bag | Performing Operations; Transporting | 70 | Expired |
| US7077472B2 | Apparatus with actuatable tether for resisting rearward movement of a backrest portion of a seat | Performing Operations; Transporting | 64 | Expired |
| US6158768A | Apparatus and method for discerning certain occupant characteristics using a plurality of capacitive sensors | Performing Operations; Transporting | 59 | Expired |
| US5524924A | Method and apparatus for restraining an occupant of a vehicle upon a side impact against the vehicle | Performing Operations; Transporting | 48 | Expired |
| US6464250B1 | Inflatable curtain with slidable tether | Performing Operations; Transporting | 45 | Expired |
| US5507521A | Automatic tilt mechanism for steering wheel with inflatable restraint | Performing Operations; Transporting | 41 | Expired |
| US5485758A | Method and apparatus for simulating vehicle side impacts | Physics | 39 | Expired |
| US5870816A | Method of assembling a tongue assembly for use with a seat belt system | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5364125A | Apparatus for protecting an occupant of a vehicle upon a side impact to the vehicle | Performing Operations; Transporting | 38 | Expired |
| US6094610A | Characterizing a proximately located occupant body portion with a sensor matrix | Performing Operations; Transporting | 35 | Expired |
| US6282473A | System and method for controlling a vehicle occupant protection device | Performing Operations; Transporting | 31 | Expired |
| US6454304B1 | Apparatus for sensing and restraining an occupant of a vehicle seat | Performing Operations; Transporting | 28 | Expired |
| US5294150A | Pretensioning safety belt apparatus | Performing Operations; Transporting | 28 | Expired |
| US7364192B2 | Air bag module with locking member for locking the position of a vent member | Performing Operations; Transporting | 28 | Expired |
| US5641198A | Seat integrated vehicle occupant restraint | Performing Operations; Transporting | 27 | Expired |
| US6273458A | Inflatable curtain | Performing Operations; Transporting | 27 | Expired |
| US5899399A | Seat belt pretensioner | Performing Operations; Transporting | 22 | Expired |
| US5944135A | Seat belt buckle with field effect locking indicator and method of use | Performing Operations; Transporting | 18 | Expired |
| US5823570A | Seat belt retractor with energy management | Performing Operations; Transporting | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.