Patents by Inventor Carl O. McKenzie

Carl O. McKenzie 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).

  • Gopher killer
    Patent number: 4841668
    Abstract: A system of killing underground burrowing varmints such as gophers. The runs or underground tunnels of the varmints is detected. A "sticky" substance such as molasses impregnated with a poison is injected into the run thus detected. When the gophers pass through this part of the run their feet get the sticky substance on them. The rodents or varmints will then to lick the sticky substance off and thus ingest the poison and be killed.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: June 27, 1989
    Inventor: Carl O. McKenzie
  • Molasses feed block for animals and method of making same
    Patent number: 3961081
    Abstract: A high energy feed supplement for animals in the form of a block that is dense, non-porous, hard, and vitreous in nature, the block embodying molasses solids as a primary structural and nutritional constituent, and in general providing the ingredients and advantages of a liquid feed supplement in solid form.
    Type: Grant
    Filed: March 12, 1974
    Date of Patent: June 1, 1976
    Inventor: Carl O. McKenzie