Inventor · Solingen, DE

Herbert Holstein

6Patents
3h-index
8Co-inventors
50Inventor score

Filing activity: Dec 24, 1974 → Jun 3, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US5865569A Internal broach for the internal broaching of profiles Emerging Cross-Sectional Technologies 17 Expired
US4495733A Scanning finger for a scanning device of a machine for the automatic sharpening of broaching or reaming tools Performing Operations; Transporting 9 Expired
US5833411A Vertical broaching machine Emerging Cross-Sectional Technologies 4 Expired
US3960056A Vertical broaching machine Emerging Cross-Sectional Technologies 3 Expired
US4106785A Workpiece holder for a vertical broaching machine for broaching annular workpieces Emerging Cross-Sectional Technologies 1 Expired
US4514935A Scanning device for a machine for the automatic sharpening of broaching or reaming tools Performing Operations; Transporting 0 Expired

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