Patents by Inventor Witek Chechelski

Witek Chechelski 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).

  • Surgical rasp
    Patent number: D302297
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: July 18, 1989
    Assignee: Snowden-Pencer, Inc.
    Inventor: Witek Chechelski
  • Working end of a surgical rasp
    Patent number: D302298
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: July 18, 1989
    Assignee: Snowden-Pencer, Inc.
    Inventor: Witek Chechelski