Patents by Inventor James J. Liggett, deceased

James J. Liggett, deceased 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).

  • Electrolytic treatment of water
    Patent number: 4378276
    Abstract: Solids precipitate out of an aqueous solution after it has passed through a negatively charged tubular steel electrode and then through the annular space between the negatively charged electrode and a positively charged tubular aluminum electrode.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: March 29, 1983
    Inventors: James J. Liggett, deceased, by Lydia M. Liggett, executrix