Patents by Inventor Peter John Pollina

Peter John Pollina 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).

  • Vignetting assembly
    Patent number: 4080069
    Abstract: A vignetting device has plural sets of matching vignetting plates which are accurately aligned and successively shifted to a central opening to block out different parts of the photograph area so as to permit fast and accurate preparation of special effect and composite prints.
    Type: Grant
    Filed: April 27, 1976
    Date of Patent: March 21, 1978
    Inventor: Peter John Pollina