Patents by Inventor Ned Steinfeld

Ned Steinfeld 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).

  • Patent number: 4923758
    Abstract: Apparatus and a method for adhering a flexible soft polarizing film to a curved surface, such as the convex surface of a prescription eyeglass to be made into a polarizing lens is disclosed. The method involves glass-casting, and preformation of the film in a manner calculated to have a minimum hardening/drying effect. Air is excluded during lamination without the need for a vacuum and the attendant complications.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: May 8, 1990
    Inventors: Mortimer Marks, Ned Steinfeld