Patents by Inventor Jacques Poitras

Jacques Poitras 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).

  • Hydroxygallium phthalocyanine processes
    Patent number: 5668276
    Abstract: A process for the preparation of hydroxygallium phthalocyanines Type A, Type B, Type C, or Type D, which comprises contacting Type V hydroxygallium phthalocyanine with an alcohol.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: September 16, 1997
    Assignee: Xerox Corporation
    Inventors: Cheng-Kuo Hsiao, Ah-Mee Hor, Sandra J. Gardner, Roger E. Gaynor, Jacques Poitras
  • Imaging member with hydroxygallium phthalocyanine type A,B,C or D
    Patent number: 5567558
    Abstract: A process for the preparation of hydroxygallium phthalocyanines Type A, Type B, Type C, or Type D, which comprises contacting Type V hydroxygallium phthalocyanine with an alcohol.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: October 22, 1996
    Assignee: Xerox Corporation
    Inventors: Cheng-Kuo Hsiao, Ah-Mee Hor, Sandra J. Gardner, Roger E. Gaynor, Jacques Poitras
  • Halogenindium phthalocyanine crystals
    Patent number: 5529870
    Abstract: An electrophotographic imaging member is characterized by a halogenindium phthalocyanine produced by dry milling and treating with an organic amine solvent.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: June 25, 1996
    Assignee: Xerox Corporation
    Inventors: Steven J. Grammatica, Ah-Mee Hor, Roger E. Gaynor, Alan B. Mistrater, Peter J. Valianatos, John S. Chambers, Rachael A. Forgit, Jacques Poitras