Patents by Inventor Glenn C. Thomas, Sr.

Glenn C. Thomas, Sr. 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).

  • Rust, corrosion, and scale remover
    Patent number: 5468303
    Abstract: A rust, corrosion, and scale removing composition is provided. It comprises an additive concentrate and water. The additive concentrate preferably consists of, on a parts by weight basis, 1.5 to 5 parts glycolic acid, 0.2 to 1 parts tetrasodium salt of ethylenediaminetetraacetic acid, 2 to 6 parts citric acid, and 1 to 3 parts trisodium citrate dihydrate.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: November 21, 1995
    Assignee: ZT Corporation
    Inventor: Glenn C. Thomas, Sr.