Inventor

Rainer Kitzing

14Patents
4h-index
15Co-inventors
49Inventor score

Filing activity: Feb 27, 1974 → Feb 13, 1981

Most-cited inventions

PatentTitleAreaCited byStatus
US4104302A Vinylsulphone hardeners Physics 8 Expired
US4233399A Photographic elements containing amino-substituted hydroxy-pyridones Physics 8 Expired
US3958050A Process for crosslinking hydrophilic colloids Physics 5 Expired
US4269928A Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process Physics 5 Expired
US3992366A Process for crosslinking hydrophilic colloids Physics 4 Expired
US3977881A Acylurea compounds Physics 4 Expired
US4386149A Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process Physics 3 Expired
US4182886A Amino-substituted hydroxy-pyridones Physics 3 Expired
US4043995A Process for crosslinking hydrophilic colloids Physics 3 Expired
US4287348A Preparation of sulphoalkyl quaternary salts Chemistry; Metallurgy 2 Expired
US4216146A Azo(hydrazo)-anthraquinone compounds Physics 1 Expired
US4120898A Sulfur containing vinyl amide cross-linking agents Physics 1 Expired
US4285859A Azo compounds useful in a photographic dye diffusion transfer process Emerging Cross-Sectional Technologies 1 Expired
US4055431A N(.beta.-chloro-propionyl or acryloyl)carbamyl or ureido piperazines Physics 0 Expired

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