Patents by Inventor Keryn N. Geho

Keryn N. Geho 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).

  • Structured kaolin pigment and process for manufacture thereof
    Patent number: 4851048
    Abstract: A structured kaolinitic pigment having improved physical and optical characteristics when incorporated as a filler in paper. The pigment is also useful in paper coating applications. The pigment consists of porous aggregates of kaolin particles which are chemically bonded together. The pigment may be produced by chemically reacting a particulate kaolin with a metal chloride, such as silicon tetrachloride. The process is conducted under conditions such that the kaolinite structure is not impaired.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: July 25, 1989
    Assignee: E.C.C. America Inc.
    Inventors: J. Philip E. Jones, Jorge E. Salinas, Keryn N. Geho, Weyman H. Dunaway, Rasik H. Raythatha