Inventor · Preston, GB

Brian Orr

17Patents
6h-index
20Co-inventors
66Inventor score

Filing activity: Feb 12, 1975 → Nov 8, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US4202386A Overfill preventive funnel Performing Operations; Transporting 21 Expired
US5651853A Mesh structure/fabric laminate Emerging Cross-Sectional Technologies 18 Expired
US5273804A Reinforcement for reinforcing a paved surface Emerging Cross-Sectional Technologies 17 Expired
US3952127A Extrusion of plastics netting Emerging Cross-Sectional Technologies 15 Expired
US4027460A Commodity packaging system Performing Operations; Transporting 13 Expired
US5612081A Applying grit particles to a continuous web Emerging Cross-Sectional Technologies 10 Expired
US8399671B2 Methods for producing hydrocodone, hydromorphone or a derivative thereof Chemistry; Metallurgy 6 Active
US5152633A Method of reinforcing a paved surface Emerging Cross-Sectional Technologies 6 Expired
US8232397B2 Processes for the production of buprenorphine with reduced impurity formation Chemistry; Metallurgy 3 Active
US10227335B2 Preparation of sufentanil citrate and sufentanil base Chemistry; Metallurgy 2 Active
US4993550A Packing small mesh pieces Performing Operations; Transporting 1 Expired
US12371423B2 Preparation of sufentanil citrate and sufentanil base Chemistry; Metallurgy 0 Active
US8946433B2 Process for the preparation of sufentanil base and related compounds Chemistry; Metallurgy 0 Active
US8729266B2 Preparation of N-alkylated opiates by reductive amination Chemistry; Metallurgy 0 Active
US10927068B2 Process for preparing acylated amphetamine derivatives Emerging Cross-Sectional Technologies 0 Active
US8232396B2 Processes for the synthesis of opiates alkaloids with reduced impurity formation Chemistry; Metallurgy 0 Active
US10899749B2 Preparation of sufentanil citrate and sufentanil base Chemistry; Metallurgy 0 Active

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