Patents by Inventor Don Richard Nemeth

Don Richard Nemeth 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).

  • Method and apparatus for testing the acidity of a lubricant in a climate control system
    Patent number: 6521459
    Abstract: A test kit for testing acidity of a lubricant in a climate control system containing a naphthalimide dye contains an aqueous solution having a salt and a known amount of hydroxide and an organic solution containing an alcohol and an organic solvent having a flash point of at least 130° F. When a lubricant is added to a combination of the aqueous solution and the organic solution, the color of the bottom layer indicates the acid content of the lubricant.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: February 18, 2003
    Assignee: Bright Solutions, Inc.
    Inventors: Donald L. Schooley, Richard C. Cavestri, Don Richard Nemeth