Patents by Inventor Stephen R. Hartshorn

Stephen R. Hartshorn 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).

  • Curable mechanical fasteners
    Patent number: 7018496
    Abstract: Curable mechanical fasteners of the invention comprise a fastening surface comprising a curable material, wherein the fastening surface is capable of being repeatedly attached and unattached to a complementary fastening surface, and when attached to the complementary fastening surface and cured, the curable mechanical fastener is capable of becoming permanently attached to the complementary fastening surface. The curable mechanical fastener may also further comprise the complementary fastening surface.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: March 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Clayton A. George, Paul D. Driscoll, Stephen R. Hartshorn, Morgan J. Tamsky
  • Generation of chlorine dioxide for disinfection and sterilization
    Patent number: 4104190
    Abstract: Chlorine dioxide is generated from aqueous liquids container alkali metal or alkaline earth metal chlorites, and compounds which liberate chlorine in water. Dry, stable, solid compositions, in one or two parts, can be made from these and other ingredients.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: August 1, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Stephen R. Hartshorn