Patents by Inventor Peter Denisevich, Jr.

Peter Denisevich, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing acetonitrile 3-trifluoromethyl benzene
    Patent number: 4966988
    Abstract: A method is provided for forming (3-trifluoromethylphenyl)acetonitrile through the intermediate .alpha.,.alpha.,.alpha.-trifluoro-.alpha.'-chloro-m-xylene. This intermediate is formed by selective chlorination of .alpha.,.alpha.,.alpha.'-trichloro-m-xylene under conditions which maximize yield and minimize the formation of undesired, non-recyclable chlorinated by-products.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: October 30, 1990
    Assignee: Chevron Research Company
    Inventors: William L. Schinski, Peter Denisevich, Jr.
  • Bicarbazole-oxadiazole electroactive polymers
    Patent number: 4620943
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,3'-N,N'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: November 4, 1986
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Albert H. Schroeder, Victor P. Kurkov, Shigeto Suzuki
  • Carbazole-oxadiazole electroactive polymers
    Patent number: 4597896
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,6-N-substituted carbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: July 1, 1986
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Albert H. Schroeder, Victor P. Kurkov, Shigeto Suzuki
  • Triazole electroactive polymers
    Patent number: 4519940
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a N-substituted 1,3,4-triazole ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: May 28, 1985
    Assignee: Chevron Research Company
    Inventors: Albert H. Schroeder, Peter Denisevich, Jr., Shigeto Suzuki, Victor P. Kurkov
  • Fused 6,6,6-membered heterocyclic electroactive polymers
    Patent number: 4505841
    Abstract: Tractable doped electroactive polymers are fabricated from the virgin polymer by contacting the polymer with acceptor conductivity modifier atoms or groups of atoms. The polymers comprise recurring units of a fused unsaturated 6,6,6-membered heterocyclic ring systems wherein two heteroatoms are in the center ring and the recurring units are connected between the carbocyclic rings.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventor: Peter Denisevich, Jr.
  • P-Type polyphenoxazine electroactive polymers
    Patent number: 4505844
    Abstract: P-type electroactive polymers comprising recurring diradical units of substituted or unsubstituted polyphenoxazine and an electron acceptor dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventor: Peter Denisevich, Jr.
  • Heterodiazole electroactive polymers
    Patent number: 4505843
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 1,3,4-heterodiazole, wherein the heteroatom is oxygen or sulfur, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventors: Shigeto Suzuki, Victor P. Kurkov, Albert H. Schroeder, Peter Denisevich, Jr.
  • Heteroazole electroactive polymers
    Patent number: 4505842
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 1,3-heteroazole, wherein the heteroatom is oxygen, sulfur or substituted nitrogen, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventors: Victor P. Kurkov, Albert H. Schroeder, Peter Denisevich, Jr., Shigeto Suzuki
  • Dithiene electroactive polymers
    Patent number: 4502980
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 1,4-dithiene ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 5, 1985
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Shigeto Suzuki, Victor P. Kurkov, Albert H. Schroeder