Patents by Inventor Peter R. Ramirez

Peter R. Ramirez 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).

  • Apparatus and method for making cast ophthalmic lenses
    Patent number: 4279401
    Abstract: Cast multifocal lenses are produced from ledged casting pieces molded from a master die having a molding surface made up of juxtapositioned die components each precision surfaced to a curvature and finish corresponding to a multifocal surface desired to be cast upon a lens and relatively prearranged according to desired height and position of cast lens ledging.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: July 21, 1981
    Assignee: American Optical Corporation
    Inventors: Peter R. Ramirez, Bradford Canterbury
  • Coating composition
    Patent number: 4229228
    Abstract: A coating composition which results from hydrolyzing 35 to 70 weight percent tetraethyl orthosilicate and 60 to 20 weight percent of certain silane is useful for providing abrasion resisting coatings for plastics after curing. Optionally, up to 20 weight percent of a silane having a reactive polar site or, in the alternative, a small percentage of a surfactant may be used to provide a dyeable coated article.
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: October 21, 1980
    Assignee: American Optical Corporation
    Inventors: Don H. Rotenberg, Patricia M. Cuffe, Bernard L. Laurin, Peter R. Ramirez
  • Coating composition
    Patent number: 4173490
    Abstract: A coating composition which results from hydrolyzing 40 to 70 weight per cent tetraethyl orthosilicate and 60 to 20 weight per cent of certain silane is useful for providing abrasion resisting coatings for plastics after curing. Optionally, up to 20 weight percent of a silane having a reactive polar site or, in the alternative, a small percentage of a surfactant may be used to provide a dyeable coated article.
    Type: Grant
    Filed: April 18, 1978
    Date of Patent: November 6, 1979
    Assignee: American Optical Corporation
    Inventors: Don H. Rotenberg, Patricia M. Cuffe, Bernard L. Laurin, Peter R. Ramirez
  • Lens block with preform
    Patent number: 3996701
    Abstract: A lens block having locating bosses for fixturing to lens-surfacing equipment and an interconnected oppositely disposed lens holding portion all cast of a eutectic blocking medium. The blocking medium is cast over and through an apertured preform of rigid, relatively high melting temperature material functioning as a heat sink and material filler.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: December 14, 1976
    Assignee: American Optical Corporation
    Inventors: Peter R. Ramirez, Bertram R. Goodwin