Patents by Inventor William J. Pyne

William J. Pyne 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).

  • Herbicidal and plant growth regulant diphenylpyridazinones
    Patent number: 4545810
    Abstract: Novel compounds of the general formula ##STR1## as well as novel compositions thereof and methods of using same are described. These compounds have been found to be valuable for controlling, modifying and inhibiting the growth of plants.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: October 8, 1985
    Assignee: SDS Biotech Corporation
    Inventors: William J. Pyne, John Lowbridge, In-Kook Chang, Florian Knotz, Larry J. Powers
  • Fluorenecarboxylic acid derivatives
    Patent number: 4461899
    Abstract: A series of ester and salt derivatives of fluorene-9-carboxylic acid and fluorene-1-carboxylic acid exhibit significant plant growth regulating properties, useful in controlling the size, shape, dormancy time, flowering time and/or fruit setting of plants, depending upon the concentrations used. They may also be used to control the growth rate, texture and color of turf grass. Presently preferred compounds include the cis-2,5-dimethylpyrrolidine salt of 1-fluorenecarboxylic acid, 9-cis-2,5-dimethyl-1-pyrrolidinyl-2-chlorofluorene-9-carboxylic acid, methyl ester, the 2,6-dimethylpiperidine salt of 1-fluorenecarboxylic acid, and the cis-2,5-dimethylpyrrolidine salt of 9-hydroxyfluorene-9-carboxylic acid.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: July 24, 1984
    Assignee: Diamond Shamrock Chemicals Company
    Inventors: William J. Pyne, Han S. Ku, Robert E. Holm
  • Antihypertensive pyridazin(2H)-3-ones
    Patent number: 4238490
    Abstract: Compounds of the formula ##STR1## are useful antihypertensive agents.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: December 9, 1980
    Assignee: Diamond Shamrock Corporation
    Inventors: Larry J. Powers, Zaven S. Ariyan, Russell Buchman, James A. Scozzie, Robert E. Moser, William J. Pyne