Patents by Inventor Elwood N. Riker, deceased

Elwood N. Riker, deceased 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).

  • Fire retardant and method for preparation
    Patent number: 5405555
    Abstract: The invention relates to an aqueous fire retardant solution, a method of making said solution, and a method of using said solution as a coating for cellulosic materials and cellulosic containing materials. The fire retarding solution consists essentially of: ammonium sulfate 3-10% by weight, boric acid 1-5% by weight, borax 0.3-1% by weight, hydrogen peroxide 1-5% by weight, and optionally a surfactant and/or an alkyl phthalate ester.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: April 11, 1995
    Assignee: American Uni-Tech, Inc.
    Inventor: Elwood N. Riker, deceased