Patents by Inventor Alfred S. T. Lui

Alfred S. T. Lui 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).

  • Substituted N-(heterocyclic-substituted phenyl)-N'-benzylureas
    Patent number: 4950678
    Abstract: Novel substituted N-(heterocyclic-substituted phenyl)-N'-benzoyl-ureas, processed for producing these compounds, intermediates therefor, compositions thereof and the use of the compounds for the control of pests.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: August 21, 1990
    Assignee: Sandoz Ltd.
    Inventors: Robert L. Carney, John M. Gruber, Alfred S. T. Lui
  • Substituted N-benzoyl-N'-thienylureas
    Patent number: 4859699
    Abstract: Substituted N-benzoyl-N'-thienylureas, processes for making these compounds, intermediates therefor and the use of the compounds for the control of pests, and in particular for the control of insects and acarids.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: August 22, 1989
    Assignee: Sandoz Ltd.
    Inventors: Robert L. Carney, Alfred S. T. Lui, Fred Kuhnen, John M. Gruber
  • Insect pheromone
    Patent number: 4357474
    Abstract: Synthesis of the insect pheromone (9Z,11E)-9,11-hexadecadienal of the sugarcane borer, Diatraea saccharalis (F.), and intermediates therefor.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: November 2, 1982
    Assignee: Zoecon Corporation
    Inventors: Robert L. Carney, Alfred S. T. Lui