Inventor · Evansville, IN, US

Robert J. Simonsen

4Patents
4h-index
1Co-inventors
40Inventor score

Filing activity: Aug 16, 1982 → Apr 10, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US5400469A Lever action caster with shock absorbing spring Performing Operations; Transporting 39 Expired
US5568671A Caster assembly with integral plastic stem and horn and with removable axle lock cap Performing Operations; Transporting 38 Expired
USD274788S Snap-on shroud for caster General 13 Expired
USD347162S Shock absorbing caster General 10 Expired

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