Patents by Inventor Guillermo C. Etienne

Guillermo C. Etienne 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).

  • Cast solid block corrosion inhibitor composition
    Patent number: 4915872
    Abstract: A solid cast block of corrosion inhibitor composition, comprising: (i) about 5 to 20 wt-% silicate, calculated as sodium metasilicate pentahydrate; (ii) about 5 to 90 wt-% borate, calculated as sodium tetraborate pentahydrate; (iii) about 0.5 to 5 wt-% polymeric dispersant such as polyacrylamide; and (iv) a sufficient solidifying amount of water.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: April 10, 1990
    Assignee: Drew Chemical Corporation
    Inventors: Stanlay J. Ciuba, Guillermo C. Etienne