Patents by Inventor Brenda J. Hitch

Brenda J. Hitch 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).

  • Solid-form additive systems dispersible in aqueous media and method for their preparation
    Patent number: 5358560
    Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems. The additive systems are dry, free-flowing particulate materials that contain at least one additive component, at least one tackifying agent, and at least one surfactant.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: October 25, 1994
    Assignee: Eastman Chemical Company
    Inventors: Brenda J. Hitch, Mahendra K. Sharma, Leo P. Voetgli
  • Process for preparation of resorcinol
    Patent number: 5068460
    Abstract: A process for preparation of resorcinol bis(hydroxyethyl)ether by first contacting resorcinol with ethylene carbonate and an alkali metal carbonate and then adding a solution of water and an alkali metal hydroxide and then recovering the resorcinol bis(hydroxyethyl)ether by crystallization.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: November 26, 1991
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Brenda J. Hitch, Bobby L. Bernard