Inventor · Witten, DE

Wilhelm Schafer

11Patents
4h-index
11Co-inventors
57Inventor score

Filing activity: Sep 18, 1974 → Dec 21, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US3958465A Driving of a shaft with pendulum mount Emerging Cross-Sectional Technologies 13 Expired
US4173245A Apparatus for mounting and dismounting vehicle tires Performing Operations; Transporting 8 Expired
US4154628A Quench hardening of gears Emerging Cross-Sectional Technologies 7 Expired
US6033271A Ship drive with a driving engine and a directly driven propeller shaft Performing Operations; Transporting 6 Expired
US4179887A Hydraulic control with delay Emerging Cross-Sectional Technologies 4 Expired
US4253414A Method and apparatus for clutch control in the operation of a ship's propulsion system having a diesel motor Mechanical Engineering; Lighting; Heating 3 Expired
US6431929B1 Drive system Performing Operations; Transporting 3 Expired
US6050865A Ship drive with a drive engine and directly drive propeller shaft Performing Operations; Transporting 2 Expired
US4130353A Projector with controls for the slide changer Physics 2 Expired
US6305998A Marine drive mechanism with twin-engine distribution transmission Performing Operations; Transporting 1 Expired
US6183317A Ship drive with a drive engine and directly driven propeller shaft Mechanical Engineering; Lighting; Heating 1 Expired

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