Patents by Inventor André Schirrer

André Schirrer 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).

  • Process for manufacturing a flexographic printing plate
    Patent number: 6551762
    Abstract: A layer of a blank is subjected to a laser-engraving phase to manufacture a flexographic printing plate. The layer is produced in a material comprised of between 55 and 65% by weight of ethylene and between 35 and 45% by weight of propylene, which has been cured prior to the laser-engraving phase, and the laser-engraving phase is performed with a laser operating at a wavelength ranging between 248 and 340 nm. Processing steps such as exposure to ultraviolet radiation and crosslinking can, in this way, be eliminated.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: April 22, 2003
    Assignee: Sagadev
    Inventors: Alain Gaignou, André Schirrer