Patents by Inventor Edward O. Leonard

Edward O. Leonard 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).

  • Water-dispersable solvent emulsion type cleaner concentrate
    Patent number: 3960742
    Abstract: A solvent emulsion type cleaner concentrate provides effective cleaning at recommended water dilutions of 896:1. The concentrate comprises about 30-60 parts by weight of an ethylene glycol monoalkyl ether solvent, together with inorganic alkaline solids and small amounts of two or more solids-suspending surfactants. The concentrate is non-flammable, ecologically acceptable, relatively non-toxic, and has corrosion inhibiting properties.
    Type: Grant
    Filed: June 29, 1973
    Date of Patent: June 1, 1976
    Assignee: Chemical Cleaning Composition Trust
    Inventor: Edward O. Leonard