Patents by Inventor Fred Waldman

Fred Waldman 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: 4545478
    Abstract: Suction cups for storing hard or semi-rigid, gas permeable contact lenses in soaking solutions are provided with rims characterized by substantially horizontal ledges which are at least as wide as the sides of the suction cup are thick. The suction cups are made by injecting a plastic forming material into a stemmed suction cup mold and contacting the plastic forming material against the adjacent convex head and ledge of a cylindrical molding pin whose cylindrical body diameter is greater than the diameter of the base of its convex head. A ledge is thus formed between the base of the convex head and the outside surface of the cylindrical body so that the resulting suction cup has a substantially horizontal ledge as its upper rim.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: October 8, 1985
    Inventor: Fred Waldman
  • Patent number: 4520923
    Abstract: A dome shaped contact lens holder is provided with indentations on its sides to allow finger tip contact with the underside of the rim of the contact lens resting on the crown of the dome. A strap capable of encompassing the lens and dome is attached on one end of the rear of the dome. At its other end, the underside of the strap is provided with a tip which plugs into a receiver located under the dome. The holder is made of a soft plastic material and comprises a single unit which is attached to the underside of the cap used to close the case containing the soaking solution in which the contact lens is stored.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: June 4, 1985
    Inventor: Fred Waldman