Patents by Inventor Joseph B. Walker

Joseph B. Walker 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).

  • Light enhancement camera attachment
    Patent number: 4204761
    Abstract: A camera attachment for providing a low level of diffuse light over a photographic film. This illumination occurs at the time of the exposure of the film. The process may be termed "flashing" and the effect is to make the film more sensitive to light.The attachment comprises an edge-illuminated transparent disc disposed directly in front of a large aperture photographic lens. An additional annular transparent element may surround the disc. "Softness" for portraiture can also be accomplished.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: May 27, 1980
    Inventor: Joseph B. Walker
  • Padded wrist band
    Patent number: D370111
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: May 28, 1996
    Assignee: Jonathan R. Micale
    Inventor: Joseph B. Walker