Patents by Inventor Gerard Pannullo

Gerard Pannullo 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).

  • Method of forming an optical grating
    Patent number: 4034460
    Abstract: An optical grating having expansion characteristics equivalent to the thermal expansion characteristics of a preselected material is formed by providing a thin grating sheet of a material different from the preselected material, forming spaced slits in the sheet to overly an opening in an underlying plate of such preselected material, thereafter securing the sheet to the plate along narrow zones outside the opening, and finally removing the portions of the sheet lying outside such zones.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: July 12, 1977
    Assignee: Trans-Cal Industries, Inc.
    Inventors: Robert M. Hulle, John Ferrero, Gerard Pannullo