Patents by Inventor Armand Joseph Desmarais

Armand Joseph Desmarais 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).

  • Tile cements
    Patent number: 4065319
    Abstract: Improvements in ceramic wall and floor tiles are effected by incorporating therein as a water retention aid phenyl hydroxyethyl cellulose-hydroxyethyl cellulose, benzyl hydroxyethyl cellulose or ethyl hydroxyethyl cellulose having specified substitution levels.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: December 27, 1977
    Assignee: Hercules Incorporated
    Inventor: Armand Joseph Desmarais