Patents by Inventor Louis Barle

Louis Barle 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: 4796621
    Abstract: A surgical, protective face mask includes a lower portion of sheet material which conforms to the facial characteristics of a wearer to cover the mouth and nose and includes an opening in the region of the eyes having an anatomically contoured covering made of a transparent optical grade plastic material and forms a seal along its periphery to protect the openings of the eye from invasive entry of viral infectious fluids and the like while permitting the wearer to wear spectacles in the normal manner.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: January 10, 1989
    Inventors: Louis Barle, Ron Vliet