Inventor · Calgary, AB, CA

Rupert Spence

6Patents
1h-index
18Co-inventors
44Inventor score

Filing activity: Mar 6, 1998 → May 29, 2015

Most-cited inventions

PatentTitleAreaCited byStatus
US6124487A Olefin polymerization catalyst having a bridged phosphole-heteroatom ligand Emerging Cross-Sectional Technologies 1 Expired
US7022787B2 Olefin polymerization catalyst Performing Operations; Transporting 1 Expired
US9828328B2 Process to prepare 3-methyl-2-nitrobenzoic acid by air oxidation Chemistry; Metallurgy 1 Active
US8598391B2 Polytrimethylene ether glycol or copolymers thereof having improved color and processes for their preparation Chemistry; Metallurgy 0 Active
US8148491B2 Preparation of polytrimthylene ether glycol or copolymers thereof Chemistry; Metallurgy 0 Active
US8143371B2 Preparation of polytrimethylene ether glycol or copolymers thereof Chemistry; Metallurgy 0 Active

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