Patents by Inventor Richard R. Boettcher

Richard R. Boettcher 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).

  • Process for the selective trihalogenation of ketones useful as intermediates in the synthesis of thiophenes
    Patent number: 5703248
    Abstract: The present invention concerns a novel process for the selective trihalogenation of ketones employing organic halogen salts.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: December 30, 1997
    Inventors: Jeffrey S. Rommel, James T. Traxler, Richard R. Boettcher
  • Desensitized benzoyl peroxide compositions
    Patent number: T998005
    Abstract: Provided are stabilized compositions of benzoyl peroxide and a method for their preparation.The compositions comprise benzoyl peroxide and a desensitizer selected from the group consisting of a lower alkyl ester of 3,3-dimethyl-4-pentenoic acid and a lower alkyl ester of 4,6,6,6-tetrachloro-3,3-dimethylhexanoic acid, the desensitizer being present in an amount of at least 0.5 part by weight for each part by weight of benzoyl peroxide.
    Type: Grant
    Filed: March 15, 1979
    Date of Patent: September 2, 1980
    Assignee: FMC Corporation
    Inventors: Edward F. Orwoll, Richard R. Boettcher