Patents by Inventor Prem Dureja

Prem Dureja 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).

  • Additives for improved pesticide photstability
    Patent number: 4622315
    Abstract: A number of pyrethroid insecticides are photolabile, thus limiting their use outdoors. The non-photolabile pyrethroids often have the disadvantage of lasting too long when used outdoors. Herein, certain toxicologically acceptable compounds are designated which stabilize the normally photolabile pyrethroids and allow them to be used for an extended time period out of doors. The stabilizers have an electron deficient .pi. system and serve to decrease the rate of the photochemical decomposition of the pyrethroid at a given light level.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: November 11, 1986
    Assignee: The Regents of the University of California
    Inventors: Prem Dureja, John E. Casida, Luis O. Ruzo