Patents by Inventor Roland Meylan

Roland Meylan 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).

  • Method for preventing counterfeiting or alteration of a printed or engraved surface
    Patent number: 7684088
    Abstract: The invention describes a process to prevent counterfeiting or alteration of a printed or engraved surface, characterized by the incorporation of a signature of the form of a digital mark into parts or the entire document, and in particular a digital mark technology to hide information in an invisible way through over-printing by using a method called asymmetric amplitude modulation. This method can be applied to any type of printed material such paper, packaging, or any other surface. Visible information can also be printed over the digital mark. As an application example, applied to a paper document the digital mark can be used to guarantee the document authenticity, as it would be destroyed by a copy process.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: March 23, 2010
    Assignee: Alpvision S.A.
    Inventors: Frederic Jordan, Roland Meylan, Martin Kutter
  • Method for preventing counterfeiting or alteration of a prited or engraved surface
    Publication number: 20040013285
    Abstract: The invention describes a process to prevent counterfeiting or alteration of a printed or engraved surface, characterized by the incorporation of a signature of the form of a digital mark into parts or the entire document, and in particular a digital mark technology to hide information in an invisible way through over-printing by using a method called asymmetric amplitude modulation. This method can be applied to any type of printed material such paper, packaging, or any other surface. Visible information can also be printed over the digital mark. As an application example, applied to a paper document the digital mark can be used to guarantee the document authenticity, as it would be destroyed by a copy process.
    Type: Application
    Filed: August 4, 2003
    Publication date: January 22, 2004
    Inventors: Frederic Jordan, Roland Meylan, Martin Kutter