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Patent applications and USPTO patent grants for West; Roger K..The latest application filed is for "ethylene-alpha olefin block copolymers and methods for production thereof".
Patent | Date |
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Ethylene-alpha olefin block copolymers and methods for production thereof Grant 5,798,420 - Cozewith , et al. August 25, 1 | 1998-08-25 |
Ethylene .alpha.-olefin block copolymers and methods for production thereof Grant 5,733,980 - Cozewith , et al. March 31, 1 | 1998-03-31 |
Viscosity modifier polymers (E-98) Grant 4,900,461 - Ver Strate , et al. February 13, 1 | 1990-02-13 |
Viscosity modifier polymers Grant 4,804,794 - Ver Strate , et al. February 14, 1 | 1989-02-14 |
Continuous process for the preparation of bromochlorinated butyl rubber Grant 4,254,240 - Newman , et al. March 3, 1 | 1981-03-03 |
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