Patents by Inventor Emile Waast

Emile Waast 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).

  • Device for combatting rodents
    Patent number: 4375732
    Abstract: A rodent trap comprising a tunnel and a bait container so arranged that a rodent passing through the tunnel either eats the bait or at least physically contacts the bait so that it is later poisoned when it grooms itself of bait adhering to its fur.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: March 8, 1983
    Inventor: Emile Waast