Patents by Inventor David R. Lear

David R. Lear 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: 5042933
    Abstract: Eyeglasses and support means for attachment to the wearer's ears, including a pair of lenses attached to a central bridge resting on the wearer's nose, an earpiece for each of the wearer's ears, and supporting flexible filaments interconnecting each lens with the corresponding earpiece. A set of two filaments is provided for each lens, and means are provided in the rear portion of each earpiece for selectively adjusting the effective length of each filament of a set and for locking the end portions of the filaments to maintain the effective lengths constant during normal use of the eyewear.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: August 27, 1991
    Inventor: David R. Lear