Patent assignee · US · COMPANY

NORAMCO, LLC

25Patents
17Active
25Granted
45Portfolio score

Filing activity: May 31, 1977 → Jun 19, 2020 · 4 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US4118603A DC signaling circuit for use in conjunction with isolation transformers Electricity 80 Expired
US4980463A Sucrose-6-ester chlorination Chemistry; Metallurgy 46 Expired
US4950746A Process for synthesizing sucrose derivatives by regioselective reaction Chemistry; Metallurgy 39 Expired
US5107032A Process for the preparation of o-phthalaldehydes Chemistry; Metallurgy 33 Expired
US5023329A Sucrose-6-ester production process Chemistry; Metallurgy 28 Expired
US5034551A Process for recovery of organotin esters from reaction mixtures containing the same and re-use of the recovered organotin compounds Chemistry; Metallurgy 27 Expired
US7906647B2 Process for preparing oxycodone having reduced levels of 14-hydroxycodeinone Human Necessities 24 Active
US8058439B2 Process for preparing oxycodone having reduced levels of 14-hydroxycodeinone Human Necessities 13 Active
US10059683B2 Process for the production of cannabidiol and delta-9-tetrahydrocannabinol Chemistry; Metallurgy 8 Active
US8563571B2 Crystalline forms of oxymorphone hydrochloride Human Necessities 5 Active
US7625918B2 Hydrocodone polymorphs Chemistry; Metallurgy 5 Active
US7550592B2 Hydromorphone polymorphs Chemistry; Metallurgy 2 Active
US9701687B2 Process for the preparation of opioid compounds Chemistry; Metallurgy 1 Active
US4870209A Process for purifying crude 4-aminophenol Chemistry; Metallurgy 1 Expired
US10406153B2 Process for the preparation of benzhydrocodone hydrochloride Chemistry; Metallurgy 0 Active
US10005791B2 O-demethylating process of methoxy substituted morphinan-6-one derivatives Chemistry; Metallurgy 0 Active
US11155548B2 Hydrocodone base and methods for its purification Chemistry; Metallurgy 0 Active
US10155771B2 Selective reduction of morphinan alkaloids Chemistry; Metallurgy 0 Active
US9701688B2 Process for the preparation of opioid compounds Chemistry; Metallurgy 0 Active
US10287296B2 Process for the preparation of (S)-2-((4R,4aS,6R,7R,7aR,12bS)-7,9-dimethoxy-1,2,3,4,5,6,7,7a-octahydro-4a,7-ethano-4,12-methanobenzofuro[3,2-e]isoquinolin-6-yl)-3,3-dimethylbutan-2-ol Chemistry; Metallurgy 0 Active
US11136318B2 Processes for the preparation of aryl hydrocarbon receptor ligands Chemistry; Metallurgy 0 Active
US10544434B2 Process for the preparation of lisdexamfetamine and related derivatives Chemistry; Metallurgy 0 Active
US10626120B2 N-demethylation of morphinan alkaloids Chemistry; Metallurgy 0 Active
US7534888B2 Oxycodone polymorphs Human Necessities 0 Expired
US8536191B2 Crystalline and amorphous forms of nalbuphine hydrochloride Human Necessities 0 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.