Patents by Inventor Mark Whipkey

Mark Whipkey 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).

  • Higher alkyl esters of cyanoacetic acid
    Patent number: 6271410
    Abstract: C3-12 alkyl, substituted alkyl, alkenyl and cycloalkyl cyanoacetates are prepared by an efficient and simplified one-step process in which a small molar excess of the corresponding alcohol, i.e., C3-12 alkyl, substituted alkyl, alkenyl or cycloalkenyl alcohol is reacted with crystalline cyanoacetic acid, or a concentrated aqueous solution of cyanoacetic acid, in the presence of an acid catalyst, such as, for example, methanesulfonic acid, p-toluenesulfonic acid, sulfuric acid and phosphoric acid at a temperature in the range of from about 60° C. to about 150° C., in accordance with the following reaction: CNCH2COOH+R—OH→(cat)CNCH2COOR+H2O  (I) where R is a C3-12 alkyl, substituted alkyl, alkenyl or cycloalkyl.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: August 7, 2001
    Assignee: Creanova Inc.
    Inventors: Thomas V. John, Chitoor S. Subramaniam, Mark Whipkey