Inventor · Vellmar, DE

Siegfried Stein

4Patents
4h-index
4Co-inventors
43Inventor score

Filing activity: Oct 26, 1989 → Jan 12, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US6276471A Delivery cart Emerging Cross-Sectional Technologies 123 Expired
US5059111A Apparatus for processing unvulcanized rubber Performing Operations; Transporting 12 Expired
US6275201A Advertisement system for an airport facility Performing Operations; Transporting 7 Expired
US5826892A Push luggage cart Performing Operations; Transporting 4 Expired

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