Patents by Inventor William G. Stoulil

William G. Stoulil 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).

  • Dye stabilized trisodium phosphate cleaning solution
    Patent number: 4063893
    Abstract: A novel dye stablized cleaning solution of trisodium phosphate and a method of cleaning with said solution is provided by the disclosure. The novelty of said solution and method consists of forming the solution with tap water filtered with an activated charcoal and admixing a specific color indicating dye therewith. The color imparted by said dye remains stable and will not fade or settle-out in said solution. The presence of the trisodium phosphate solution is thereby readily detectable.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: December 20, 1977
    Inventors: Arthur C. Stoulil, William G. Stoulil