Inventor · Birkenfeld, DE

Hellmut Bendler

18Patents
8h-index
16Co-inventors
65Inventor score

Filing activity: Nov 3, 1971 → Dec 19, 1984

Most-cited inventions

PatentTitleAreaCited byStatus
US4444010A Rotary power element Performing Operations; Transporting 46 Expired
US3967141A Piezoelectric energy source Electricity 19 Expired
US4152025A Apparatus for the tensioning and relaxing of safety belts Performing Operations; Transporting 15 Expired
US4008780A Device for tensioning safety belts in vehicles Performing Operations; Transporting 15 Expired
US4014264A Combined igniter cap Mechanical Engineering; Lighting; Heating 15 Expired
US4320704A Electronic projectile fuse Mechanical Engineering; Lighting; Heating 13 Expired
US4464990A Ignition device with amplifier charge Mechanical Engineering; Lighting; Heating 12 Expired
US4027592A Propellant charge igniter with striker element Mechanical Engineering; Lighting; Heating 10 Expired
US4188856A Compressed-gas-actuated switching device Mechanical Engineering; Lighting; Heating 7 Expired
US4271747A Fastening element with a cavity containing an explosive charge Mechanical Engineering; Lighting; Heating 7 Expired
US4660473A Compressed gas-actuated mechanical power element Electricity 6 Expired
US4644863A Electric detonator Mechanical Engineering; Lighting; Heating 6 Expired
US3994201A Separating element Mechanical Engineering; Lighting; Heating 6 Expired
US3984127A Rotary power apparatus Performing Operations; Transporting 5 Expired
US4029017A Propellant charge igniter Mechanical Engineering; Lighting; Heating 4 Expired
US4043128A Compressed-gas cartridge for fire protection purposes Emerging Cross-Sectional Technologies 4 Expired
US4081964A Apparatus for the thermal and electrical initiation of fire protection devices Emerging Cross-Sectional Technologies 3 Expired
US4144714A Rotary power element Performing Operations; Transporting 2 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.