Patents by Inventor Thomas D. Sleeter

Thomas D. Sleeter 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).

  • Protecting wood from wood degrading organisms
    Patent number: 4220688
    Abstract: Wood is impregnated with a solution of tannic acid followed by impregnation with a solution of a metal in the form of a salt. The metal selected is one that will complex with both the impregnated tannic acid and the wood.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: September 2, 1980
    Inventors: Ralph Mitchell, Thomas D. Sleeter