Exxon Chemical Patents, Inc.
1,417Patents
5Active
1,417Granted
48Portfolio score
Filing activity: Jan 22, 1985 → Jun 26, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5352749A | Process for polymerizing monomers in fluidized beds | Emerging Cross-Sectional Technologies | 835 | Expired |
| US4808561A | Supported polymerization catalyst | Emerging Cross-Sectional Technologies | 706 | Expired |
| US5436304A | Process for polymerizing monomers in fluidized beds | Emerging Cross-Sectional Technologies | 678 | Expired |
| US5198401A | Ionic metallocene catalyst compositions | Emerging Cross-Sectional Technologies | 598 | Expired |
| US5153157A | Catalyst system of enhanced productivity | Emerging Cross-Sectional Technologies | 533 | Expired |
| US5324800A | Process and catalyst for polyolefin density and molecular weight control | Emerging Cross-Sectional Technologies | 531 | Expired |
| US5055438A | Olefin polymerization catalysts | Emerging Cross-Sectional Technologies | 448 | Expired |
| US5057475A | Mono-Cp heteroatom containing group IVB transition metal complexes with MAO: supported catalyst for olefin polymerization | Emerging Cross-Sectional Technologies | 403 | Expired |
| US5017714A | Silicon-bridged transition metal compounds | Emerging Cross-Sectional Technologies | 380 | Expired |
| US4871523A | Vanadium tetrachloride stabilization | Emerging Cross-Sectional Technologies | 371 | Expired |
| US5096867A | Monocyclopentadienyl transition metal olefin polymerization catalysts | Emerging Cross-Sectional Technologies | 358 | Expired |
| US5026798A | Process for producing crystalline poly-.alpha.-olefins with a monocyclopentadienyl transition metal catalyst system | Emerging Cross-Sectional Technologies | 354 | Expired |
| US4808387A | Stabilization of vanadium tetrachloride | Emerging Cross-Sectional Technologies | 351 | Expired |
| US4752597A | New polymerization catalyst | Emerging Cross-Sectional Technologies | 329 | Expired |
| US5405922A | Process for polymerizing monomers in fluidized beds | Emerging Cross-Sectional Technologies | 326 | Expired |
| US4701432A | Supported polymerization catalyst | Emerging Cross-Sectional Technologies | 324 | Expired |
| US5206075A | Sealable polyolefin films containing very low density ethylene copolymers | Emerging Cross-Sectional Technologies | 309 | Expired |
| US5246783A | Electrical devices comprising polymeric insulating or semiconducting members | Emerging Cross-Sectional Technologies | 306 | Expired |
| US5322728A | Fibers of polyolefin polymers | Emerging Cross-Sectional Technologies | 277 | Expired |
| US4871705A | Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst | Emerging Cross-Sectional Technologies | 274 | Expired |
| US5462999A | Process for polymerizing monomers in fluidized beds | Emerging Cross-Sectional Technologies | 272 | Expired |
| US5539056A | Thermoplastic elastomers | Chemistry; Metallurgy | 262 | Expired |
| US5241025A | Catalyst system of enhanced productivity | Emerging Cross-Sectional Technologies | 260 | Expired |
| US5382631A | Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions | Chemistry; Metallurgy | 251 | Expired |
| US5278119A | Catalysts, method of preparing these catalysts, and polymerization processes wherein these catalysts are used | Emerging Cross-Sectional Technologies | 229 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.