Patents by Inventor Derek P. Dagarin

Derek P. Dagarin 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 compositions of tetrazolinone herbicides and antidotes therefor
    Patent number: 6248693
    Abstract: Herbicidal compositions containing tetrazolinone compounds and antidotal compounds therefor to reduce injury to various crops, particularly corn, wheat, rice and soya, from the phytotoxic effects of tetrazolinone herbicides when used alone or in combination with additional pesticidally active ingredients. Methods for reducing phytotoxicity or injury to crop plants, particularly corn and soya crops, due to tetrazolinone herbicides are also described.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: June 19, 2001
    Assignee: Zeneca Limited
    Inventors: John M. Shribbs, Derek P. Dagarin
  • 4-substituted pyridyl-3-carbinol compositions and a co-herbicide
    Patent number: 5585327
    Abstract: 4-substituted pyridyl-3-carbinols of the formula ##STR1## wherein R is hydrogen, or an acyl, alkyl or carbamyl group exhibit desirable preemergent and postemergent herbicidal activity. Also disclosed are herbicidal compositions comprising such compounds and methods of controlling undesirable vegetation employing such compounds. The compounds wherein AR is hydroxyl serve as useful intermediates for the production of the alpha-benzyl substituted compounds as well as exhibiting herbicidal activity.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: December 17, 1996
    Assignee: Zeneca Limited
    Inventors: Hsiao-Ling Chin, Yi-Qiu Wei, Nhan H. Nguyen, Michael P. Ensminger, Linda Willitts, Derek P. Dagarin