Patents by Inventor John S. Luk

John S. Luk 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).

  • Cellular abrasive article
    Patent number: 6645263
    Abstract: Abrasive articles abrasive articles (e.g., abrasive wheels) comprised of abrasive agglomerate particles dispersed within cellular polymeric material, and methods of making and using the abrasive articles.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: November 11, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Steven J. Keipert, John S. Luk, Dennis G. Welygan
  • Cellular abrasive article
    Publication number: 20030045213
    Abstract: Abrasive articles abrasive articles (e.g., abrasive wheels) comprised of abrasive agglomerate particles dispersed within cellular polymeric material, and methods of making and using the abrasive articles.
    Type: Application
    Filed: May 22, 2001
    Publication date: March 6, 2003
    Inventors: Steven J. Keipert, John S. Luk, Dennis G. Welygan