Inventor · Fryeburg, ME, US

Guy R. Humphrey

30Patents
5h-index
81Co-inventors
72Inventor score

Filing activity: May 6, 1991 → Jun 18, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US5149838A Intermediates for substituted azetidinones useful as anti-inflammatory and antidegenerative agents Chemistry; Metallurgy 20 Expired
US5124460A Enantioselective synthesis of 3-substituted 1-azabicyclo (2.2.1)heptanes Chemistry; Metallurgy 10 Expired
US5696266A Process for the stereoselective reduction of steroid enelactams Chemistry; Metallurgy 10 Expired
US5470976A Process for the stereoselective reduction of steroid enelactams Chemistry; Metallurgy 8 Expired
US5817802A Process for the stereoselective reduction of steroid enelactams Chemistry; Metallurgy 6 Expired
US9580407B2 Regioselective N-2 arylation of indazoles Chemistry; Metallurgy 4 Active
US10815214B2 Regioselective N-2 arylation of indazoles Chemistry; Metallurgy 2 Active
US10435386B2 Regioselective N-2 arylation of indazoles Chemistry; Metallurgy 2 Active
US8686141B2 Process for preparing N-substituted hydroxypyrimidinone carboxamides Emerging Cross-Sectional Technologies 1 Active
US5585383A Process for crystallizing a 4-azasteroid 5alpha-reductase inhibitor Chemistry; Metallurgy 1 Expired
US9238604B2 Process and intermediates for preparing macrolactams Human Necessities 1 Active
US6444680B1 Amine salts of an integrin receptor antagonist Chemistry; Metallurgy 1 Expired
US9890128B2 Process for making substituted quinazoline compounds Performing Operations; Transporting 0 Active
US6242596A Preparation of betamethyl carbapenem intermediates Emerging Cross-Sectional Technologies 0 Expired
US10392353B2 Processes for making substituted quinazoline compounds using hydrogen bonding catalysts Human Necessities 0 Active
US6489471B1 Process for the synthesis of carbapenem intermediates, and compounds produced Emerging Cross-Sectional Technologies 0 Expired
US9598397B2 Process for making reverse transcriptase inhibitors Chemistry; Metallurgy 0 Active
US9073825B2 Methods and intermediates for preparing macrolactams Human Necessities 0 Active
US7576118B2 Asymmetric hydrogenation process Chemistry; Metallurgy 0 Active
US6187925A Intermediates and process for the synthesis of azasteroids Chemistry; Metallurgy 0 Expired
US12391694B2 Process for the preparation of 2-fluoroadenine Human Necessities 0 Active
US5310899A Process for the preparation of chiral 4-aryloxyazetidinones Chemistry; Metallurgy 0 Expired
US6620824B2 Process for the synthesis of gonadotropin releasing hormone antagonists Chemistry; Metallurgy 0 Expired
US5654424A Preparation of beta-methyl carbapenem intermediates Emerging Cross-Sectional Technologies 0 Expired
US9873707B2 Methods and intermediates for preparing macrolactams Chemistry; Metallurgy 0 Active

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