Patents by Inventor Christian E. Rick

Christian E. Rick 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).

  • Flowability of rutile pigment
    Patent number: 4303702
    Abstract: The flowability of fine particle size, rutile titanium dioxide is improved by uniformly mixing 0.05-2% by weight of naphthenic acid with the titanium dioxide.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: December 1, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Raymond Bullock, Jr., Christian E. Rick, George A. Schurr