Patents by Inventor Eric L. Hegg

Eric L. Hegg 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).

  • Patent number: 11859145
    Abstract: An improved alkaline pretreatment of biomass is provided that is a single-stage, two oxidant alkaline oxidative pretreatment process. The process uses a homogenous catalyst with at least two oxidants (Hydrogen peroxide and enhanced levels of oxygen) in an alkaline environment to catalytically pretreat lignocellulosic biomass in a single-stage oxidation reaction. The provided single-stage alkaline-oxidative pretreatment improves biomass pretreatment and increase enzymatic digestibility to improve the economic feasibility of production of lignocellulose derived sugars.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: January 2, 2024
    Assignees: Board of Trustees of Michigan State University, Montana State University, Wisconsin Alumni Research Foundation
    Inventors: Eric L. Hegg, Zhaoyang Yuan, David B. Hodge, Shannon S. Stahl, Bryan D. Bals
  • Patent number: 11530458
    Abstract: A homogeneous catalyst is provided comprising one or more metals; and at least two metal coordinating ligands wherein the homogeneous catalyst is a multi-ligand metal complex adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, the homogenous catalyst is copper (II) 2, 2? bipyridine ethylenediamine (Cu(bpy)en). Related methods are also disclosed.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: December 20, 2022
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: David B. Hodge, Eric L. Hegg, Zhenglun Li, Vaidyanathan Mathrubootham, Aditya Bhalla, Namita Bansal
  • Publication number: 20200332376
    Abstract: An improved alkaline pretreatment of biomass is provided that uses a homogenous catalyst with one or more metals and metal coordinating ligands, wherein the homogeneous catalyst is used with at least two oxidants in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, hydrogen peroxide and oxygen are utilized as co-oxidants during alkaline-oxidative pretreatment to improve biomass pretreatment and increase enzymatic digestibility. In one embodiment, the homogenous catalyst is copper (II) 2,2?-bipyridine (Cu(bpy)). Related methods are also disclosed to improve the economic feasibility of production of lignocellulose derived sugars.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 22, 2020
    Inventors: Eric L. Hegg, Zhaoyang Yuan, David B. Hodge, Shannon S. Stahl, Bryan D. Bals
  • Publication number: 20190091674
    Abstract: A homogeneous catalyst is provided comprising one or more metals; and at least two metal coordinating ligands wherein the homogeneous catalyst is a multi-ligand metal complex_adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, the homogenous catalyst is copper (II) 2, 2? bipyridine ethylenediamine (Cu(bpy)en). Related methods are also disclosed.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventors: David B. Hodge, Eric L. Hegg, Zhenglun Li, Vaidyanathan Mathrubootham, Aditya Bhalla, Namita Bansal
  • Publication number: 20150352540
    Abstract: A homogeneous catalyst is provided comprising one or more metals; and at least two metal coordinating ligands wherein the homogeneous catalyst is a multi-ligand metal complex_adapted for use with an oxidant in an oxidation reaction to catalytically pretreat lignocellulosic biomass. In one embodiment, the homogenous catalyst is copper (II) 2,2? bipyridine ethylenediamine (Cu(bpy)en). Related methods are also disclosed.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 10, 2015
    Inventors: David B. Hodge, Eric L. Hegg, Zhenglun Li, Vaidyanathan Mathrubootham, Aditya Bhalla, Namita Bansal
  • Publication number: 20090305322
    Abstract: A method is disclosed for measuring the hydrogen and/or oxygen isotope ration of intracellular water in Escherichia coli cells and correlating the hydrogen and/or oxygen isotope ratio with the metabolic activity of the cell. A method is also disclosed for measuring the hydrogen and/or oxygen ratio of intracellular water via a probe, such as a fatty acid, and correlating the hydrogen and/or oxygen ratio with the metabolic activity of the cell. Methods for measuring the hydrogen and/or oxygen isotope ratio of water from eukaryotic organisms, such as cultured rat fibroblasts and whole mammals, and optionally relating the same to a metabolic rate, are also disclosed.
    Type: Application
    Filed: November 15, 2006
    Publication date: December 10, 2009
    Inventors: Eric L. Hegg, Helen Kreuzer-Martin, David William Podlesak, Michael J. Lott
  • Patent number: 5739022
    Abstract: A method is provided for nonoxidatively cleaving the phosphorus-oxygen linkage of nucleic acids and certain anticholinesterases such as insecticides using a macrocyclic copper(II) complex. A composition suited for such cleavage is also provided.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: April 14, 1998
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Judith N. Burstyn, Eric L. Hegg, Kim A. Deal