Patents by Inventor William A. Hermanson

William A. Hermanson 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: 4089552
    Abstract: To assist a person with seriously impaired vision to manually locate and pick up a contact lens, a flat, smooth surfaced pad of aerated polyethylene is provided, having a narrow bridge segment on which the convex surface of the lens rests and enlargements at opposite ends of the bridge segment. The width of the bridge segment is equal to the outside diameter of the lens. The pad contains titanium dioxide, which gives it a stark white color that makes the pad more visible and makes it easier to see the contact lens on the pad. The pad can be doubled over for convenient storage in a small envelope or the like, and when removed it springs back immediately into its normal flat shape.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: May 16, 1978
    Inventor: William A. Hermanson
  • Patent number: 3931692
    Abstract: The present insect exterminating pad has a quantity of insecticidal food particles covered on top by a paper web which has openings at the inside covered by dispersed fibers that can be penetrated by the feelers and mouth parts of Blatella germanica cockroach nymphs. The food particles are covered on the bottom by Kraft paper that cannot be so penetrated.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: January 13, 1976
    Inventor: William A. Hermanson