Patents by Inventor Gilles Longchampt

Gilles Longchampt 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).

  • Patent number: 6656665
    Abstract: The invention concerns a method for producing a pattern on a transparent substrate, particularly a glass or glass-ceramic substrate. According to the invention, there is deposited on at least one area of one face of the substrate, a first layer of a photosensitive resin comprising at least one sensitizing agent and at least one photosensitive compound essentially composed of a polymer with an average degree of cross-linking d° such that it is able to absorb solid particles. Certain areas of said first layer are exposed to light, particularly in order to increase, in a controlled manner, the average degree of cross-linking do of said polymer so as to modulate its absorption capacity. On the first layer is deposited at least one second layer of a mineral-particle-based composition. The substrate is subjected to at least one treatment cycle, particularly in order to fix said mineral particles. The invention also concerns the substrate produced by this method and its applications.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: December 2, 2003
    Assignee: Saint-Gobain Vitrage
    Inventors: Yves Demars, Jean-Christophe Elluin, Gilles Longchampt
  • Patent number: 6183939
    Abstract: The invention concerns a method for producing a pattern on a transparent substrate, particularly a glass or glass-ceramic substrate. According to the invention, there is deposited on at least one area of one face of the substrate, a first layer of a photosensitive resin comprising at least one sensitizing agent and at least one photosensitive compound essentially composed of a polymer with an average degree of cross-linking d° such that it is able to absorb solid particles. Certain areas of said first layer are exposed to light, particularly in order to increase, in a controlled manner, the average degree of cross-linking d° of said polymer so as to modulate its absorption capacity. On the first layer is deposited at least one second layer of a mineral-particle-based composition. The substrate is subjected to at least one treatment cycle, particularly in order to fix said mineral particles. The invention also concerns the substrate produced by this method and its applications.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: February 6, 2001
    Assignee: Saint-Gobain Vitrage
    Inventors: Yves Demars, Jean-Christophe Elluin, Gilles Longchampt