Patents by Inventor James L. McGinnis

James L. McGinnis 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).

  • Photorefractive polymers containing discrete photoconductive and electrooptical units
    Patent number: 5326661
    Abstract: This invention provides novel polymers which contain discrete photoconductive and electrooptic moieties. The moieties may exist as part of the main chain of the polymer or as pendant side chains. The polymers have utility as transparent photorefractive media in photorefractive devices.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: July 5, 1994
    Assignee: Hoechst Celanese Corp.
    Inventors: Michael Sansone, Harris A. Goldberg, James L. McGinnis, Karsten Blatter, Ching F. Shu, Anthony East
  • Dye lasers
    Patent number: 4878224
    Abstract: In one embodiment this invention provides a tunable laser device which is characterized by a dye laser medium which consists of a porous glass matrix containing an incorporated solution of a lasing dye, and which is adapted to operate continuously in combination with an optical pumping means.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: October 31, 1989
    Assignee: Hoechst Celanese Corporation
    Inventors: James E. Kuder, James L. McGinnis, Harris A. Goldberg, Timothy R. Hart, Tessie M. Che
  • Direct hydrogenation of carboxylic acids to alcohol and esters
    Patent number: 4480115
    Abstract: This invention provides an improved process for direct hydrogenation of a carboxylic acid to its corresponding alcohol with synthesis gas in the presence of a homogeneous catalyst comprising a ruthenium compound and a Lewis Acid metal halide.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: October 30, 1984
    Assignee: Celanese Corporation
    Inventor: James L. McGinnis
  • Preparation of hydroxy aromatic carboxylic acids and ester derivatives thereof
    Patent number: 4374262
    Abstract: A process for preparing hydroxy aromatic carboxylic acids, or the ester derivatives thereof, comprises carbonylating a hydroxy aromatic halide in the presence of a reactive alcohol solvent and a catalytic amount of a Group VIII metal catalyst. The process has particular applicability to the preparation of 6-hydroxy-2-naphthoic acid from 6-bromo-2-naphthol, which can be easily prepared from .beta.-naphthol, a readily available and inexpensive starting material.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: February 15, 1983
    Assignee: Celanese Corporation
    Inventors: James L. McGinnis, Anthony B. Conciatori