Patents by Inventor Clemmon Porter

Clemmon Porter 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).

  • Defoamer composition and use thereof
    Patent number: 4377493
    Abstract: A defoamer comprised of silica having hydrophobic surfaces dispersed in a water insoluble hydrophobic organic liquid, wherein the silica has a surface area of no greater than 0.1 m.sup.2 /g and the hydrophobic silica comprises in excess of 25 wt. percent of the composition.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: March 22, 1983
    Assignee: Drew Chemical Corporation
    Inventors: Francis J. Boylan, Clemmon Porter, Olga D. Bruno