Patents by Inventor Eldo C. Koenig

Eldo C. Koenig 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).

  • Patent number: 5568789
    Abstract: A hanging or fixedly suspended bird feeder embodies an upright, tubular, smooth-walled, feed container configured with feed ports in which at least lower portions of the lips of the ports are recessed radially inward from the side wall of the container into the base edge for the purpose of deterring marauding squirrels from obtaining a claw hold on the container wall. A saucer-shaped perch extends radially from beneath the feed container, suspended by elastic cord which yields and stretches under weight of a squirrel, thwarting attempts by squirrels to feed by upsetting the perch thereby ejecting the creatures to the ground.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: October 29, 1996
    Inventors: Eldo C. Koenig, Evan F. Koenig