Patents by Inventor Leo E. Burt

Leo E. Burt 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).

  • Pesticidal formaldehyde concentrate
    Patent number: 4020182
    Abstract: The composition of matter including an aqueous solution of formaldehyde, a water-soluble hydrazinium salt, and a water-soluble ammonium salt provides a pesticide concentrate that when diluted, is predictably stable; may be used safely in soil or on foliage and around the roots of growing plants; and evidences controlled released properties.
    Type: Grant
    Filed: November 21, 1974
    Date of Patent: April 26, 1977
    Assignee: Leo E. Burt
    Inventors: Leo E. Burt, Stephen E. Frazier