Patents by Inventor Edward T. Lance-Gomez

Edward T. Lance-Gomez 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).

  • In-tank toilet cleansing block having polyacrylic acid/acrylate
    Patent number: 5863876
    Abstract: Disclosed herein is a toilet cleansing block containing a polyacrylate polymer and a lauryl benzene sulfonate salt surfactant. The block is essentially free of other polymers that sequester ions. The block is for immersion in toilet tanks, and inhibits toilet bowl ring and stain formation, particularly those caused by iron oxide.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: January 26, 1999
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Edward T. Lance-Gomez, Jerome J. Veltman