Patents Represented by Attorney Thomas D. Rogerson Patent Attorney

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  • 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
  • Selective acylation of monoalkylhydrazines
    Patent number: 5767314
    Abstract: A process for selectively monoacylating monoalkylhydrazines by reacting such with trichloromethyl aryl ketones.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: June 16, 1998
    Assignee: Rohm and Haas Company
    Inventors: Martha Jean Kelly, Anne Marie Budenz