Patents by Inventor Mary Jo Burkholder

Mary Jo Burkholder 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).

  • Thermosetting high solids coating composition of epoxies, polyols and anhydrides
    Patent number: 4755581
    Abstract: Disclosed herein are high solids thermosetting coating compositions comprising polyepoxides and anhydrides as effective curing agents therefor. Films from these coating compositions are of remarkable appearance and are attended by remarkably low volatile organic content (VOC).
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: July 5, 1988
    Assignee: PPG Industries, Inc.
    Inventors: William P. Blackburn, Ronald R. Ambrose, Samuel Porter, Jr., Mary Jo Burkholder
  • Color plus clear application of thermosetting high solids coating composition of hydroxy-functional epoxies and anhydrides
    Patent number: 4732790
    Abstract: Disclosed herein is an improved process for preparing color-plus-clear coatings, the improvement comprising high solids thermosetting coating compositions comprising hydroxy-functional polyepoxides and anhydrides as effective curing agents therefor. Films of these coating compositions are of remarkable appearance and are attended by remarkably low volatile organic content (VOC).
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: March 22, 1988
    Assignee: PPG Industries, Inc.
    Inventors: William P. Blackburn, Ronald R. Ambrose, Samuel Porter, Jr., Mary Jo Burkholder