Inventor · Wilmington, DE, US

William Charles Ripka

32Patents
13h-index
52Co-inventors
84Inventor score

Filing activity: Feb 19, 1976 → Oct 7, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US7705017B2 Compounds for treatment of neurodegenerative diseases Chemistry; Metallurgy 42 Active
US6262044A Modulators of protein tyrosine phosphatases (PTPASES) Chemistry; Metallurgy 40 Expired
US5656645A Aromatic heterocyclic derivatives as enzyme inhibitors Human Necessities 38 Expired
US5658930A Aromatic heterocyclic derivatives as enzyme inhibitors Human Necessities 34 Expired
US6410586B1 Modulators of protein tyrosine phosphatases (PTPases) Chemistry; Metallurgy 34 Expired
US5747449A Bovine pancreatic trypsin inhibitor derived inhibitors of factor XA Human Necessities 33 Expired
US5703208A 3-amino-2-oxo-1-piperidineacetic derivatives as enzyme inhibitors Chemistry; Metallurgy 24 Expired
US6309541A Apparatus and method for multiple channel high throughput purification Physics 23 Expired
US6011158A Aromatic heterocyclic derivatives as enzyme inhibitors Human Necessities 22 Expired
US5807980A Bovine pancreatic trypsin inhibitor derived inhibitors of factor VIIa-tissue factor complex Human Necessities 17 Expired
US5714499A 3-amino-2-oxo-1-piperidineacetic derivatives containing an arginine mimic as enzyme inhibitors Human Necessities 17 Expired
US5637599A Arginine mimic derivatives as enzyme inhibitors Human Necessities 17 Expired
US6508938B2 Apparatus and method for multiple channel high throughput purification Physics 13 Expired
US6034215A 3-amino-2-oxo-1-piperidnercetic derivatives as enzyme inhibitors Chemistry; Metallurgy 13 Expired
US4042707A 3.alpha.-Arylhydroisoindoles Chemistry; Metallurgy 10 Expired
US5932733A 3-amino-2-oxo-1-piperidineacetic derivatives containing an arginine mimic as enzyme inhibitors Chemistry; Metallurgy 9 Expired
US4150135A Substituted 4a-phenyl-N-phenylalkyl-cis-decahydroisoquinolines Chemistry; Metallurgy 8 Expired
US5883077A Inhibitors of factor Xa Human Necessities 7 Expired
US5739112A Inhibitors of factor Xa Human Necessities 6 Expired
US6342504B1 Aromatic heterocyclic derivatives as enzyme inhibitors Human Necessities 6 Expired
US6951878B2 Benzo[b]thiophenyl or tetrahydro-benzo[b]thiophenyl modulators of protein tyrosine phosphatases (PTPases) Chemistry; Metallurgy 5 Expired
US5731413A Method of synthesis of peptidyl aldehydes Human Necessities 4 Expired
US4077954A N-(p-methylphenethyl)-4a-aryl-trans-decahydroisoquinolines Chemistry; Metallurgy 4 Expired
US5514777A Methods of synthesis of peptidyl argininals Human Necessities 3 Expired
US9174949B2 Hedgehog inhibitors Chemistry; Metallurgy 3 Active

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