Patents by Inventor Glen L. Livingston

Glen L. Livingston 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).

  • Process for making 3,5-dialkyl-4-hydroxybenzyl-substituted aromatics
    Patent number: 4898994
    Abstract: 3,5-di-alkyl-4-hydroxybenzyl-substituted aromatics are made in improved yield by co-feeding 2,6-di-alkyl-4-alkoxymethyl phenol and sulfuric acid to a benzene compound, e.g. mesitylene, in an inert solvent at -10.degree. to 50.degree. C.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: February 6, 1990
    Assignee: Ethyl Corporation
    Inventors: Glen L. Livingston, John Borges, George L. Mina