Patents by Inventor Edwin A. Chirokas

Edwin A. Chirokas 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).

  • Precharged web coating apparatus
    Patent number: 4457256
    Abstract: Improved electrostatically assisted coating apparatus for placing an electrostatic dipole-type charge, of a predetermined magnitude, on material to be coated before and/or remote from the location where the coating is actually applied to said material by a coating applicator.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: July 3, 1984
    Assignee: Polaroid Corporation
    Inventors: Semyon Kisler, Edwin A. Chirokas, Donald A. Foster