Patents by Inventor Peter G. Groeneweg

Peter G. Groeneweg 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).

  • Method for making N-substituted nitrophthalimides
    Patent number: 4902809
    Abstract: A process for preparing N-alkyl substituted nitrophthalimide by the nitration of N-alkyl substituted phthalimide using only nitric acid, said nitric acid having a concentration of at least about 95%, and then recovering N-alkyl nitrophthalimide from the nitric acid solution.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: February 20, 1990
    Assignee: General Electric Company
    Inventors: Peter G. Groeneweg, Roy R. Odle