Patents by Inventor Yuen-Lung Lawrence Sing

Yuen-Lung Lawrence Sing 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 2,6-substituted pyridine compounds
    Patent number: 5773389
    Abstract: Disclosed herein are herbicidal pyridine compounds substituted at the 3- and/or 5-position with a carboxylic acid-derived heterocyclic moiety, as well as herbicidal compositions and use of these compounds.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: June 30, 1998
    Assignee: Rohm and Haas Company
    Inventors: Yuen-Lung Lawrence Sing, Len F. Lee