Patents by Inventor Robert Willens

Robert Willens 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).

  • Insect control collar with replaceable chemical member
    Patent number: 4184452
    Abstract: An animal collar having a member which disperses a chemical to rid the animal of fleas and ticks wherein the chemical-carrying member is periodically replaced for extended use of the collar. The chemical-carrying member is removably attached to the collar for easy replacement when the supply of chemical is exhausted.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: January 22, 1980
    Inventors: John E. Buzzell, Robert Willens