Patents by Inventor Christian Donzel

Christian Donzel 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).

  • Silicone elastomer stamp with hydrophilic surfaces and method of making same
    Patent number: 6596346
    Abstract: A method for fabricating silicone elastomer stamps with hydrophilic surfaces is provided. The concept of polymer grafting is used to produce the stamps. The stamps thus produced have the great advantage that grafting of a thin hydrophilic polymer on a hydrophobic PDMS surface can render PDMS stamps permanently hydrophilic. With such stamps it becomes possible to print aqueous or highly polar inks reproducibly over days and weeks.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: July 22, 2003
    Assignee: International Business Machines Corporation
    Inventors: Andre Bernard, Emmanuel Delamarche, Christian Donzel, Jöns G. Hilborn, Bruno Michel, Richard Stutz, Heiko Wolf
  • Silicone elastomer stamp with hydrophilic surfaces and method of making same
    Publication number: 20020098364
    Abstract: A method for fabricating silicone elastomer stamps with hydrophilic surfaces is provided. The concept of polymer grafting is used to produce the stamps. The stamps thus produced have the great advantage that grafting of a thin hydrophilic polymer on a hydrophobic PDMS surface can render PDMS stamps permanently hydrophilic. With such stamps it becomes possible to print aqueous or highly polar inks reproducibly over days and weeks.
    Type: Application
    Filed: September 14, 2001
    Publication date: July 25, 2002
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Andre Bernard, Emmanuel Delamarche, Christian Donzel, Jons Gunner Hilborn, Bruno Michel, Richard Stutz, Heiko Wolf