Christopher E. Wittner
26Patents
14h-index
33Co-inventors
81Inventor score
Filing activity: May 18, 1998 → Jul 23, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6300271A | Compositions that can produce polymers | Chemistry; Metallurgy | 331 | Expired |
| US6107230A | Compositions that can produce polymers | Chemistry; Metallurgy | 322 | Expired |
| US6524987B1 | Organometal catalyst compositions | Emerging Cross-Sectional Technologies | 296 | Expired |
| US6316553A | Process for producing polymers using a composition comprising an organometal compound, a treated solid oxide compound, and an organoaluminum compound | Chemistry; Metallurgy | 289 | Expired |
| US6548442B1 | Organometal compound catalyst | Emerging Cross-Sectional Technologies | 272 | Expired |
| US6667274B1 | Polymerization catalysts | Emerging Cross-Sectional Technologies | 269 | Expired |
| US7601665B2 | Compositions that can produce polymers | Chemistry; Metallurgy | 246 | Expired |
| US6831141B2 | Process for producing polymers | Chemistry; Metallurgy | 91 | Expired |
| US6833338B2 | Organometal compound catalyst | Emerging Cross-Sectional Technologies | 69 | Expired |
| US7763561B2 | Compositions that can produce polymers | Chemistry; Metallurgy | 57 | Active |
| US7417097B2 | Organometal compound catalyst | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7547754B2 | Organometal compound catalyst | Emerging Cross-Sectional Technologies | 27 | Active |
| US7109277B2 | Polymerization catalysts | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6573344B1 | Propylene polymerization process | Emerging Cross-Sectional Technologies | 16 | Expired |
| US9040642B2 | Catalyst systems containing a bridged metallocene | Chemistry; Metallurgy | 14 | Active |
| US8609793B2 | Catalyst systems containing a bridged metallocene | Chemistry; Metallurgy | 13 | Active |
| US6878785B2 | Organometal compound catalyst | Emerging Cross-Sectional Technologies | 12 | Expired |
| US8637616B2 | Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects | Chemistry; Metallurgy | 10 | Active |
| US11339279B2 | Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications | Chemistry; Metallurgy | 10 | Active |
| US9040643B2 | Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects | Chemistry; Metallurgy | 5 | Active |
| US8492498B2 | Polymer compositions for rotational molding applications | Chemistry; Metallurgy | 3 | Active |
| US12031022B2 | Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications | Chemistry; Metallurgy | 1 | Active |
| US12269911B2 | Aqueous methods for titanating a chromium/silica catalyst with an alkali metal | Performing Operations; Transporting | 0 | Active |
| US12240964B2 | Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications | Chemistry; Metallurgy | 0 | Active |
| US12365746B2 | Aqueous methods for titanating a chromium/silica catalyst with an alkali metal | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.