Patents by Inventor William A. Berecki

William A. Berecki 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).

  • Resinoid grinding wheels containing nickel-coated cubic boron nitride particles
    Patent number: RE31883
    Abstract: An improved resinoid grinding wheel particularly useful for the wet or dry grinding of hardened steels and steel alloys utilizes nickel-coated cubic boron nitride particles as the abrasive medium.
    Type: Grant
    Filed: December 9, 1977
    Date of Patent: May 14, 1985
    Assignee: General Electric Company
    Inventors: Harold P. Bovenkerk, William A. Berecki