Patents by Inventor Jacek Witecki

Jacek Witecki 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).

  • Device for cutting circles
    Patent number: 3934343
    Abstract: Disclosed is a device for cutting circles and the like consisting essentially of an adapter for mounting on one leg of a compass and into which is threaded a blade holder provided with a blade.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: January 27, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: Jacek Witecki