Inventor · Hoisdorf, DE

Gerd Upper

8Patents
7h-index
14Co-inventors
60Inventor score

Filing activity: Jun 13, 1974 → May 20, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US3981528A Robot finger Performing Operations; Transporting 39 Expired
US5711534A Annular shaft seal having an elastic sealing lip Mechanical Engineering; Lighting; Heating 35 Expired
US5201528A Unitized shaft seal Mechanical Engineering; Lighting; Heating 30 Expired
US5462287A Method for the manufacture of a shaft seal Mechanical Engineering; Lighting; Heating 23 Expired
US3973779A Sealing arrangement Emerging Cross-Sectional Technologies 16 Expired
US5462288A Shaft seal assembly Mechanical Engineering; Lighting; Heating 13 Expired
US5476270A Shaft seal and gasket assembly Emerging Cross-Sectional Technologies 10 Expired
US6857636B2 Shaft sealing ring Mechanical Engineering; Lighting; Heating 2 Expired

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