Inventor · Chesterfield, MO, US

Peter X. Wang

55Patents
7h-index
28Co-inventors
68Inventor score

Filing activity: Feb 4, 2000 → Aug 12, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US6428810B1 Pharmaceutical formulation comprising omeprazole Human Necessities 32 Expired
US8067596B2 Processes for the production of (+)- “Nal” morphinan compounds Human Necessities 17 Active
US8217175B2 Preparation of oxymorphone from oripavine Chemistry; Metallurgy 14 Active
US8309727B2 Opiate reduction utilizing catalytic hydrogen transfer reaction Chemistry; Metallurgy 10 Active
US7671204B2 N-demethylation of N-methyl morphinans Human Necessities 9 Active
US8669366B2 Process for the preparation of quaternary N-alkyl morphinan alkaloid salts Emerging Cross-Sectional Technologies 8 Active
US8080661B2 Processes for the synthesis of tertiary amines Chemistry; Metallurgy 7 Active
US7985858B2 Process for the preparation of 6-alpha-hydroxy-N-alkylated opiates Emerging Cross-Sectional Technologies 7 Active
US8067597B2 Synthetic route to 14-hydroxyl opiates through 1-halo-thebaine or analogs Human Necessities 7 Active
US8252808B2 Process and compounds for the production of (+)opiates Chemistry; Metallurgy 7 Active
US7321038B2 Method for the catalytic production of hydrocodone and hydromorphone Performing Operations; Transporting 6 Expired
US7323565B2 Method for the catalytic production of hydrocodone and hydromorphone Chemistry; Metallurgy 6 Expired
US7399858B2 Method for the catalytic production of hydrocodone, hydromorphone, and derivatives thereof Chemistry; Metallurgy 4 Active
US8273888B2 Process for the preparation of 6-alpha-hydroxy-N-alkylated opiates Emerging Cross-Sectional Technologies 3 Active
US8436174B2 (+)-morphinanium quaternary salts and processes for their production Human Necessities 3 Active
US8148528B2 Processes and compounds for the preparation of normorphinans Chemistry; Metallurgy 2 Active
US9458109B2 Substituted berbines and processes for their synthesis Performing Operations; Transporting 2 Active
US9012468B2 One pot process for producing 6-hydroxyl nal-opiate Chemistry; Metallurgy 2 Active
US8431705B2 One-pot preparation of hexahydroisoquinolines from amides Chemistry; Metallurgy 2 Active
US8101757B2 Processes for the preparation of normorphinan salts Emerging Cross-Sectional Technologies 2 Active
US8563725B2 Preparation of saturated ketone morphinan compounds having low metal content Chemistry; Metallurgy 1 Active
US9040726B2 Process for the preparation of quaternary N-alkyl morphinan alkaloid salts Emerging Cross-Sectional Technologies 1 Active
US8624030B2 N-demethylation of 6-keto morphinans Chemistry; Metallurgy 1 Active
US8563724B2 (+)-6-hydroxy-morphinan or (+)-6-amino-morphinan derivatives Human Necessities 1 Active
US8293907B2 Preparation of saturated ketone morphinan compounds by catalytic isomerization Chemistry; Metallurgy 1 Active

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