Patents by Inventor Howard Ensign Simmons, III

Howard Ensign Simmons, III 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).

  • Laser engravable flexographic printing element and a method for forming a printing plate from the element
    Patent number: 6737216
    Abstract: Flexographic printing plate is made from a laser engravable flexographic printing element which includes on a support at least one laser engravable reinforced elastomeric layer of an elastomeric composition comprising an elastomeric binder, at least one monomer, a photoinitiator system that decreases in ultraviolet absorbance as polymerization proceeds and at least one additive which absorbs infrared radiation at 9 to 12 micrometers.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 18, 2004
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Anandkumar Ramakrishnan Kannurpatti, Howard Ensign Simmons, III