Patents by Inventor Alfred VAN LIER

Alfred VAN LIER 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).

  • Color inhibitor for quaternary ammonium hydroxide in non-aqueous solvent
    Patent number: 9944853
    Abstract: A composition including a quaternary onium hydroxide in a non-aqueous solvent, wherein the quaternary ammonium hydroxide has a concentration in the range from about 5% by weight to about 50% by weight of the composition; and imidazolidine-2,4-dione, wherein the imidazolidine-2,4-dione has a concentration in the range from about 10 to about 5000 parts per million of the composition.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: April 17, 2018
    Assignee: SACHEM, Inc.
    Inventors: Tim Engel, Alfred Van Lier
  • COLOR INHIBITOR FOR QUATERNARY AMMONIUM HYDROXIDE IN NON-AQUEOUS SOLVENT
    Publication number: 20150353824
    Abstract: A composition including a quaternary onium hydroxide in a non-aqueous solvent, wherein the quaternary ammonium hydroxide has a concentration in the range from about 5% by weight to about 50% by weight of the composition; and imidazolidine-2,4-dione, wherein the imidazolidine-2,4-dione has a concentration in the range from about 10 to about 5000 parts per million of the composition.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 10, 2015
    Inventors: Tim ENGEL, Alfred VAN LIER