Patents by Inventor John B. Littrell

John B. Littrell 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).

  • Soap marker foaming drop tube
    Patent number: 5820030
    Abstract: The apparatus consist of an inner perforated cap attached to a long flexible perforated tubing. When a mixture of soap, air and water are forced through the apparatus an enormous amount of soap foam forms on the outside of the tubing. Since the foam is forming from top to bottom, it will mark tall residue as well as the ground.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: October 13, 1998
    Inventor: John B. Littrell