Inventor · Krefeld, DE

Friedhelm Kamper

4Patents
3h-index
11Co-inventors
43Inventor score

Filing activity: Aug 20, 2002 → Jun 30, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US8153838B2 Process for producing isocyanates Chemistry; Metallurgy 6 Active
US6639102B2 Process for producing polyisocyanates of the diphenyl methane series having a reduced color value Chemistry; Metallurgy 4 Expired
US6720455B2 Process for the production of polyisocyanates of the diphenylmethane series with a reduced color value Chemistry; Metallurgy 3 Expired
US9447510B2 Processes for the production of chlorine from hydrogen chloride and oxygen Emerging Cross-Sectional Technologies 0 Active

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