Patents by Inventor Louwet Frank

Louwet Frank 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).

  • Flexographic ink containing a polymer or copolymer of a 3, 4-dialkoxythiophene
    Publication number: 20030144465
    Abstract: A non-dye containing flexographic ink containing a polymer or copolymer of a 3,4-dialkoxythiophene in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge, a polyanion and a latex binder in a solvent or aqueous medium, characterized in that the polymer or copolymer of a 3,4-dialkoxythiophene is present in a concentration of at least 0.1% by weight in the ink and that the ink is capable of producing a colorimetrically additive transparent print; a method of preparing the flexographic ink; and a flexographic printing process therewith.
    Type: Application
    Filed: June 20, 2002
    Publication date: July 31, 2003
    Applicant: AGFA-GEVAERT
    Inventors: Luc Leenders, Eddie Daems, Louwet Frank, Rafael Samijn, Jean-Pierre Tahon, Roger Van den Bogaert