Patents by Inventor Joseph C. Nnebedum

Joseph C. Nnebedum 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).

  • Glass polishing article
    Patent number: 4842619
    Abstract: An abrasive article for polishing glass and ceramic surfaces comprised of a combination of abrasive particles and inorganic glass polishing aid dispersed throughout a three-dimensional nonwoven fibrous web of organic material, and adhered therein by a resinous binder. The article is capable of refining a ground glass or ceramic surface to a highly polished surface faster than abrasive articles known in the art.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: June 27, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Peter J. Fritz, Joseph C. Nnebedum