Bi; Le-Khac

Patent Applications and Registrations

Patent applications and USPTO patent grants for Bi; Le-Khac.The latest application filed is for "n,n-dimethylacrylamide/2-acrylamido-2-methylpropane sulfonic acid copolymers for enhanced petroleum recovery".

Company Profile

0.11.0

Bi; Le-Khac - West Chester PA
Bi; Le-Khac - Pittsburgh PA
Bi; Le-Khac - Akron OH

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
N,N-Dimethylacrylamide/2-acrylamido-2-methylpropane sulfonic acid copolymers for enhanced petroleum recovery Grant 4,404,111 - Bi , et al. September 13, 1	1983-09-13
Diolefin monomer purification process for anionic polymerization Grant 4,387,264 - Bi June 7, 1	1983-06-07
Clear impact resistant thermoplastic star-block copolymers Grant 4,346,198 - Doak , et al. * August 24, 1	1982-08-24
Clear impact resistant thermoplastic star-block copolymers Grant 4,248,982 - Bi , et al. February 3, 1	1981-02-03
Clear impact resistant thermoplastic star-block copolymers Grant 4,248,980 - Bi , et al. February 3, 1	1981-02-03
Clear impact resistant thermoplastic star-block copolymers Grant 4,248,981 - Milkovich , et al. February 3, 1	1981-02-03
Clear impact resistant thermoplastic star-block copolymers Grant 4,248,984 - Bi , et al. February 3, 1	1981-02-03
Clear impact resistant thermoplastic star-block copolymers Grant 4,221,884 - Bi , et al. September 9, 1	1980-09-09
Clear impact resistant thermoplastic star-block copolymers Grant 4,180,530 - Bi , et al. December 25, 1	1979-12-25
Star polymers and process for the preparation thereof Grant 4,108,945 - Fetters , et al. * August 22, 1	1978-08-22
Star polymers and process for the preparation thereof Grant 3,985,830 - Fetters , et al. October 12, 1	1976-10-12

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