Patents by Inventor Kwo-Dong A. Chang

Kwo-Dong A. Chang 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).

  • Abrasive printed with an electrically conductive ink
    Patent number: 5137542
    Abstract: A coated abrasive article having a printed coating of electrically conductive ink incorporated in the construction thereof, such that the buildup of static electricity during the use of the article is either reduced or eliminated. In another respect, a method to make the same is taught.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: August 11, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Scott J. Buchanan, Kwo-Dong A. Chang