Patents by Inventor Judith B. Challen

Judith B. Challen 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).

  • Pillow
    Patent number: D284248
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: June 17, 1986
    Inventor: Judith B. Challen
  • Pillow
    Patent number: D292767
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: November 17, 1987
    Inventor: Judith B. Challen