Patents by Inventor Janny Mathieu

Janny Mathieu 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).

  • Surface texture reading access checking system
    Patent number: 4677435
    Abstract: Surface texture reading access checking system. The identification information attached to each support object serving as a key is constituted by the texture of a surface portion of said object. A reader reads this information and communicates it to the processing means, which carry out a comparison between the signal read and recorded signals. Application to the production of locks or access checking means for data processing, telematic, banking and similar systems.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: June 30, 1987
    Assignees: Communaute Europeenne de l'Energie Atomique (Euratom), Association pour la Promotion de la Technologie (Promotech)
    Inventors: Bertrand Causse D'Agraives, Janny Mathieu, Patrick Jamar
  • Surface texture reading access checking system
    Patent number: RE33553
    Abstract: Surface texture reading access checking system. The identification information attached to each support object serving as a key is constituted by the texture of a surface portion of said object. A reader reads this information and communicates it to the processing means, which carry out a comparison between the signal read and recorded signals. Application to the production of locks or access checking means for data processing, telematic, banking and similar systems.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: March 12, 1991
    Assignees: Euratom, Communaute Europeenne de l'Energie Atomique, Promotech, Association pour la Promotion de la Technologie
    Inventors: Bertrand C. D'Agraives, Janny Mathieu, Patrick Jamar