Inventor · Hanau, DE

Kai Rossen

44Patents
9h-index
66Co-inventors
78Inventor score

Filing activity: Sep 19, 1990 → Oct 21, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US6555677B2 Phase transfer catalyzed glycosidation of an indolocarbazole Chemistry; Metallurgy 42 Expired
US8658808B2 Process for the production of dronedarone intermediates Human Necessities 13 Active
US8674121B2 Process for the production of benzofurans Chemistry; Metallurgy 13 Active
US6040450A Process for making diaryl pyridines useful as cox-2-inhibitors Chemistry; Metallurgy 13 Expired
US6040319A Process for synthesizing COX-2 inhibitors Chemistry; Metallurgy 11 Expired
US6127545A Process for making 2-aryl-3-aryl-5-halo pyridines useful as COX-2 inhibitors Chemistry; Metallurgy 10 Expired
US5217972A Quinolonecarboxylic acid derivatives and their use as antiviral agents Chemistry; Metallurgy 10 Expired
US6204387A Process for making diaryl pyridines useful as COX-2 inhibitors Chemistry; Metallurgy 10 Expired
US6130334A Process for making 2-aryl-3-aryl-5-halo pyridines useful as COX-2 inhibitors Chemistry; Metallurgy 9 Expired
US5612484A Process for making HIV protease inhibitors Chemistry; Metallurgy 9 Expired
US6252116A Intermediates useful in a process for synthesizing COX-2 inhibitors Chemistry; Metallurgy 8 Expired
US5883267A Process for making phenyl heterocycles useful as cox-2 inhibitors Chemistry; Metallurgy 8 Expired
US5723615A Process for preparing 4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamide Chemistry; Metallurgy 7 Expired
US5728840A Process for making an epoxide Chemistry; Metallurgy 6 Expired
US5874629A Chiral bisphosphines Chemistry; Metallurgy 5 Expired
US5618939A Process for making HIV protease inhibitors Chemistry; Metallurgy 4 Expired
US5663341A Process for making HIV protease inhibitors Chemistry; Metallurgy 4 Expired
US5700364A Electrochemical oxidation Chemistry; Metallurgy 3 Expired
US5637711A Process for making HIV protease inhibitors Chemistry; Metallurgy 3 Expired
US6043387A Chiral bisphosphines Chemistry; Metallurgy 2 Expired
US6395894B2 Process for the synthesis of carbapenem intermidiates, and compounds produced Emerging Cross-Sectional Technologies 2 Expired
US7531697B2 Process for the preparation of aromatic aldehydes Performing Operations; Transporting 1 Expired
US6369275B1 Process for making diaryl pyridines useful as cox-2 inhibitors Chemistry; Metallurgy 1 Expired
US5981759A Process for indinavir intermediate Chemistry; Metallurgy 1 Expired
US5300643A Quinolonecarboxylic acid derivatives Chemistry; Metallurgy 1 Expired

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