Patents by Inventor Alan P. Bowden

Alan P. Bowden 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).

  • Cement coloring composition and method of producing same
    Patent number: 4204876
    Abstract: Thixotropic compositions for coloring cement or concrete or similar products comprise particulate pigment particles (about 20-80% by weight), at least one stabilizer (about 0.4-15%), a dispersent (about 0.1-3.0%) and water (about 12-77%). Methods of making these compositions are also explained.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: May 27, 1980
    Assignee: M. Hamburger & Sons, Inc.
    Inventor: Alan P. Bowden