Inventor · Warmond, NL

Leendert Hellenberg

5Patents
5h-index
2Co-inventors
42Inventor score

Filing activity: Mar 23, 1993 → Nov 7, 1994

Most-cited inventions

PatentTitleAreaCited byStatus
US5474211A Method of dispensing materials with improved accuracy Performing Operations; Transporting 128 Expired
US5328057A Paint dispenser apparatus Performing Operations; Transporting 80 Expired
US5368196A Apparatus for metering and dispensing flowable materials to form a blended composition Performing Operations; Transporting 73 Expired
US5356041A Dispensing apparatus having improved valving Performing Operations; Transporting 47 Expired
US5480288A Pump module for dispensing apparatus Performing Operations; Transporting 43 Expired

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