Inventor · Wuppertal, DE

Karl-Heinz Schlemmer

118Patents
14h-index
228Co-inventors
89Inventor score

Filing activity: May 21, 1999 → Aug 18, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7157456B2 Substituted oxazolidinones and their use in the field of blood coagulation Chemistry; Metallurgy 77 Expired
US6362178B1 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 73 Expired
US8420656B2 Substituted 5-fluoro-1H-pyrazolopyridines and their use Chemistry; Metallurgy 48 Active
US6174884A 1,5-dihydro-pyrazolo[34-D]-pyrimidinone derivatives Human Necessities 39 Expired
US8309551B2 Pyrazolopyridine, indazole, imidazopyridine, imidazopyrimidine, pyrazolopyrazine and pyrazolopyridine derivatives as stimulators of guanylate cyclase for cardiovascular disorders Chemistry; Metallurgy 36 Active
US8921377B2 Substituted 5-fluoro-1H-pyrazolopyridines and their use Chemistry; Metallurgy 26 Active
US6458796B1 Dihydro-[1,2,3]triazolo-[4,5-d]pyrimidin-7-one Human Necessities 23 Expired
US7034017B2 Substituted oxazolidinones and their use in the field of blood coagulation Chemistry; Metallurgy 19 Expired
US6573263B2 Substituted imidazotriazinones Human Necessities 18 Expired
US6696451B1 Dihydropyrimidines Chemistry; Metallurgy 18 Expired
US7074784B2 Medicaments against viral diseases Chemistry; Metallurgy 18 Expired
US8399471B2 Aryl-or heteroaryl-substituted pyrido[2,3-d] pyrimidines and pharmaceutical compositions of the same Human Necessities 17 Active
US7022709B2 Selective PDE 2 inhibitors as pharmaceuticals for improving perception Human Necessities 16 Expired
US8796335B2 Branched 3-phenylpropionic acid derivatives and their use Chemistry; Metallurgy 14 Active
US9993476B2 Substituted 5-flouro-1H-pyrazolopyridines and their use Chemistry; Metallurgy 13 Active
US6566360B1 2-phenyl substituted imidatriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 13 Expired
US7687510B2 Pyrimidinone derivatives as therapeutic agents against acute and chronic inflammatory, ischaemic and remodelling processes Chemistry; Metallurgy 12 Active
US7202243B2 Substituted imidazotriazines Human Necessities 12 Expired
US9266885B2 Substituted 5-fluoro-1H-pyrazolopyridines and their use Chemistry; Metallurgy 11 Active
US7998988B2 Biphenyl compounds useful in the treatment or prevention of cardiovascular disorders Chemistry; Metallurgy 11 Active
US6998402B2 Substituted imidazotriazinones Chemistry; Metallurgy 11 Expired
US6589949B1 3-oxo-2,1-benzisoxazol-1(3H)-carboxamides for treatment of CNS diseases Human Necessities 11 Expired
US9598417B2 (Aza)pyridopyrazolopyrimidinones and indazolopyrimidinones and their use Chemistry; Metallurgy 10 Active
US7767702B2 Substituted oxazolidinones for combinational therapy Human Necessities 10 Active
US6890922B2 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 10 Expired

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