Patents by Inventor Al Tureck

Al Tureck 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).

  • Copy security system
    Patent number: 4303307
    Abstract: A security system to prevent the unauthorized duplication of documents on standard electrostatic copiers. Paper substrates are coated with layers of carefully sized and spaced beads which break up the light emitted by a copier to a degree sufficient to preclude copying. In another embodiment, an original consisting of a paper substrate bonded to a reflective metalized film reflects light from the copier, and masks the image of any intelligence present on the substrate.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: December 1, 1981
    Inventors: Al Tureck, Theodore P. Gordon
  • Flash diffuser
    Patent number: D249798
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: October 3, 1978
    Assignee: Sima Products Corporation
    Inventors: Al Tureck, Edward R. Farber