Patents by Inventor Maurice Dubois

Maurice Dubois 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).

  • Process for the production of silver coated particles
    Patent number: 5945158
    Abstract: A process for the preparation of silver coated particles useful as polymer fillers is provided. Copper coated, or copper particles are dispersed in an alkaline ammoniacal solution to remove impurities and activate the surfaces thereof. A combined completing and reducing agent is added. Finally, a solution containing silver ions is used to coat the particles with a uniform layer of silver.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: August 31, 1999
    Assignee: N.V. Union Miniere S.A.
    Inventors: Stojan Djokic, Maurice Dubois, Ross H Lepard