Patents by Inventor John Freidig

John Freidig 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).

  • System and method for enhanced ethanol production
    Patent number: 12679794
    Abstract: A system for producing ethanol comprises a rectifier column that receives a first process stream comprising from about 42% to about 60% ethanol, wherein the rectifier column purifies the first process stream to provide an ethanol product stream that is at least about 90% ethanol, and one or more evaporators configured to evaporate water from a second process stream, wherein the one or more evaporators generate vapor, and wherein at least a portion of the vapor supplies heat energy for separation of ethanol from water in the rectifier column.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: July 14, 2026
    Assignee: ICM, Inc.
    Inventors: David VanderGriend, Wayne Clutter, John Freidig
  • SYSTEM AND METHOD FOR ENHANCED ETHANOL PRODUCTION
    Publication number: 20230033215
    Abstract: A system for producing ethanol comprises a rectifier column that receives a first process stream comprising from about 42% to about 60% ethanol, wherein the rectifier column purifies the first process stream to provide an ethanol product stream that is at least about 90% ethanol, and one or more evaporators configured to evaporate water from a second process stream, wherein the one or more evaporators generate vapor, and wherein at least a portion of the vapor supplies heat energy for separation of ethanol from water in the rectifier column.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 2, 2023
    Inventors: David VanderGriend, Wayne Clutter, John Freidig