Patents by Inventor Domenico Tiefenthaler

Domenico Tiefenthaler 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).

  • Composition sensitive to IR radiation and to heat and lithographic plate coated therewith
    Patent number: 6620572
    Abstract: A heat-sensitive composition of the positive type comprising a polymeric binder and a solubility inhibitor, wherein the said solubility inhibitor consists of an organometallic compound, with the exclusion of the metallocenes, an organic salt or an organic complex of an inorganic salt of a metal belonging to the group IIIA or transition group of the periodic system of the elements.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: September 16, 2003
    Assignee: Lastra S.p.A.
    Inventors: Roberto Bernardini, Domenico Tiefenthaler, Angelo Bolli
  • Composition sensitive to IR radiation and to heat and lithographic plate coated with this composition
    Patent number: 6500600
    Abstract: A heat-sensitive composition of the positive type comprising a polymeric binder and a solubility inhibitor, wherein the said solubility inhibitor is a hydroxylated acrylic polymer, a hydroxylated acrylic copolymer or of a derivative thereof wherein some hydroxyl groups have been esterified by a carboxylic acid or a reactive derivative thereof.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: December 31, 2002
    Assignee: Lastra S.p.A.
    Inventors: Roberto Bernardini, Domenico Tiefenthaler, Angelo Bolli