Inventor

Siegfried Schuhmann

9Patents
8h-index
11Co-inventors
62Inventor score

Filing activity: Nov 22, 1974 → Jul 5, 1984

Most-cited inventions

PatentTitleAreaCited byStatus
US4200932A Means for the control and regulation of the printing process on printing presses Performing Operations; Transporting 51 Expired
US4033259A Device for adjusting printing plates on the plate cylinder of printing presses Emerging Cross-Sectional Technologies 22 Expired
US3978788A Ink metering assembly for printing press Performing Operations; Transporting 18 Expired
US4648048A Apparatus for determining and evaluating color measurement strips on a printed sheet Performing Operations; Transporting 17 Expired
US4393775A Arrangement for metering the ink quantity in inking units on printing presses Performing Operations; Transporting 15 Expired
US4586148A Arrangement for scanning printing plates Emerging Cross-Sectional Technologies 13 Expired
US3933351A Sheet delivery arrangement having an air-stream sheet retarder Performing Operations; Transporting 9 Expired
US4502386A Ink fountain having temperature responsive element Performing Operations; Transporting 8 Expired
US4559874A Ink metering system in letterpress and offset printing machines Performing Operations; Transporting 4 Expired

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