Patents by Inventor Fredric M. Menger

Fredric M. Menger 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).

  • Zwitterionic gemini surfactants for use in carbon dioxide
    Publication number: 20020123452
    Abstract: A surfactant comprises a first ionic group comprising at least one hydrocarbon-containing chain; a second ionic group comprising at least one hydrocarbon-containing chain, wherein the second ionic group has a charge opposite to the charge of the first ionic group; and a hydrocarbon spacer group covalently bonded to each of the first and second ionic groups. The surfactant is solubilized in carbon dioxide.
    Type: Application
    Filed: January 24, 2002
    Publication date: September 5, 2002
    Inventors: Joseph M. DeSimone, Jason S. Keiper, Fredric M. Menger, Andrey V. Peresypkin, Caroline J. Clavel
  • Preparation of giant ring compounds
    Patent number: 5391726
    Abstract: The invention concenrs giant ring compounds containing about 20 to about 160 atoms in the backbone of the ring and methods for preparing the giant ring compounds.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: February 21, 1995
    Assignee: The Dow Chemical Company
    Inventor: Fredric M. Menger