Patents by Inventor Bruce Eugene Leach

Bruce Eugene Leach 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).

  • N-alkylated cresylic acids via direct alkylation in a liquid phase
    Patent number: 4108909
    Abstract: A method for the production of n-alkylated cresylic acids such as n-hexyl resorcinol by direct alkylation of a cresylic acid such as resorcinol under liquid phase conditions.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: August 22, 1978
    Assignee: Continental Oil Company
    Inventors: Bruce Eugene Leach, Charles M. Starks
  • Disproportionation of xylenols with phenol to form cresols
    Patent number: 4060560
    Abstract: Xylenols are disproportionated with phenol over catalysts such as tungsten oxide promoted magnesium oxide, preferably in the presence of water. The reaction selectively removes methyl groups ortho to the hydroxyl group. Catalysts which can be used are magnesium oxide promoted with zinc oxide, tungsten oxide, and uranium oxide.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: November 29, 1977
    Assignee: Continental Oil Company
    Inventor: Bruce Eugene Leach