Inventor · Leichlingen, DE

Michael Kressner

7Patents
4h-index
18Co-inventors
54Inventor score

Filing activity: May 22, 1975 → Sep 8, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US4332587A Colorant preparations, a process for their production and their use for coloring plastics Chemistry; Metallurgy 14 Expired
US3993619A Process for dyeing polyurethane resins Performing Operations; Transporting 11 Expired
US4026931A Process for dyeing polyurethane plastics Chemistry; Metallurgy 11 Expired
US5889065A Pigment preparations Chemistry; Metallurgy 4 Expired
US4386195A Dyestuff preparations, processes for their production and their use for dyeing plastics Chemistry; Metallurgy 3 Expired
US5959001A Pigment preparations Chemistry; Metallurgy 3 Expired
US4988752A Colored thermoplastic resin composition Chemistry; Metallurgy 0 Expired

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