Inventor · Bruckneudorf, AT

Robert Ulrich

9Patents
6h-index
7Co-inventors
52Inventor score

Filing activity: Apr 17, 1996 → Nov 1, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US6155401A Drive for an escalator Performing Operations; Transporting 17 Expired
US5848668A Portable lifting system for easy movement of moderately heavy items Performing Operations; Transporting 13 Expired
US5611417A Apparatus for stopping a passenger conveyor Performing Operations; Transporting 12 Expired
US6142286A Floor covering for conveying equipment for persons Performing Operations; Transporting 8 Expired
US7234583B2 Escalator or moving walk Performing Operations; Transporting 6 Expired
US6471033B2 Lubricating device for an escalator or a moving walkway Performing Operations; Transporting 6 Expired
US6260687A Equipment and method for simplified roller bearing exchange at escalators and moving walkways Performing Operations; Transporting 5 Expired
US6655521B2 Escalator or moving walkway Performing Operations; Transporting 2 Expired
US7451867B2 Escalator or moving walk with shaft-bearing and method of mounting and dismounting this escalator Performing Operations; Transporting 2 Expired

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