Patents by Inventor Jack R. Kelley

Jack R. Kelley 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).

  • Drilling fluid composition
    Patent number: 4374738
    Abstract: A water-based drilling fluid composition is described which comprises an aqueous dispersion of a clay material containing an effective dispersing amount of a modified lignosulfonate which is obtained by graft polymerization of from 5 to 30 weight percent of an acrylic compound with the lignosulfonate. The grafted lignosulfonate has an average molecular weight of less than 80,000.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: February 22, 1983
    Assignee: Georgia-Pacific Corporation
    Inventor: Jack R. Kelley
  • Process for the preparation of aqueous magnetic material suspensions
    Patent number: 4019994
    Abstract: A process for the preparation of aqueous magnetic oxide suspensions is described.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: April 26, 1977
    Assignee: Georgia-Pacific Corporation
    Inventor: Jack R. Kelley