Patents Assigned to DFI USA, LLC
  • Methods for the production of calcium, magnesium, and zinc salts of sugar acids
    Patent number: 12630578
    Abstract: A method has now been found for the preparation of calcium, magnesium, and zinc salts of sugar acids, this being the object of the present invention, which is characterized in that the method may include providing a sugar and oxidizing the sugar to a sugar acid in the presence of a noble metal catalyst, oxygen, and a heterogeneous hydroxide source. Preferably the oxidation is carried out with a gold catalyst, and a heterogeneous source of magnesium, calcium, or zinc hydroxide. The oxidation can be performed in a batch or continuous manner.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: May 19, 2026
    Assignee: DFI USA, LLC
    Inventors: Jonathan Stapley, David Genders
  • Methods for the production of L-threonic acid salts from L-xylonic acid
    Patent number: 11999687
    Abstract: Efficient methods of producing L-threonic acid from L-xylonic acid are disclosed.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: June 4, 2024
    Assignee: DFI USA, LLC
    Inventors: Jonathan Stapley, David Genders
  • Method for the production of 2,4-dihydroxybutyric acid
    Patent number: 11578029
    Abstract: Methods for the production of 2,4-dihydroxybutyrate (2,4-DHB) from erythrose and other four-carbon sugars are disclosed. The improved methods facilitate the production of 2,4-DHB that is a precursor for biorenewable and animal nutrition chemicals among others.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: February 14, 2023
    Assignee: DFI USA, LLC
    Inventors: Jonathan Stapley, David Genders
  • METHODS FOR THE PRODUCTION OF CALCIUM, MAGNESIUM, AND ZINC SALTS OF SUGAR ACIDS
    Publication number: 20220235083
    Abstract: A method has now been found for the preparation of calcium, magnesium, and zinc salts of sugar acids, this being the object of the present invention, which is characterized in that the method may include providing a sugar and oxidizing the sugar to a sugar acid in the presence of a noble metal catalyst, oxygen, and a heterogeneous hydroxide source. Preferably the oxidation is carried out with a gold catalyst, and a heterogeneous source of magnesium, calcium, or zinc hydroxide. The oxidation can be performed in a batch or continuous manner.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 28, 2022
    Applicant: DFI USA, LLC
    Inventors: Jonathan STAPLEY, David GENDERS
  • Method for the production of 2,4-dihydroxybutyric acid
    Patent number: 10882812
    Abstract: Methods for the production of 2,4-dihydroxybutyrate (2,4-DHB) from erythrulose and other four-carbon sugars are disclosed. The improved methods facilitate the production of 2,4-DHB that is a precursor for biorenewable and animal nutrition chemicals among others.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: January 5, 2021
    Assignee: DFI USA, LLC
    Inventors: Jonathan Stapley, David Genders
  • METHOD FOR THE PRODUCTION OF 2,4-DIHYDROXYBUTYRIC ACID
    Publication number: 20200002260
    Abstract: Methods for the production of 2,4-dihydroxybutyrate (2,4-DHB) from erythrose and other four-carbon sugars are disclosed. The improved methods facilitate the production of 2,4-DHB that is a precursor for biorenewable and animal nutrition chemicals among others.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Applicant: DFI USA, LLC
    Inventors: Jonathan Stapley, David Genders
  • Method for the production of 2,4-dihydroxybutyric acid
    Patent number: 10377691
    Abstract: Methods for the production of 2,4-dihydroxybutyrate (2,4-DHB) from erythrose and other four-carbon sugars are disclosed. The improved methods facilitate the production of 2,4-DHB that is a precursor for biorenewable and animal nutrition chemicals among others.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 13, 2019
    Assignee: DFI USA, LLC
    Inventors: Jonathan Stapley, David Genders
  • METHOD FOR THE PRODUCTION OF 2,4-DIHYDROXYBUTYRIC ACID
    Publication number: 20180162798
    Abstract: Methods for the production of 2,4-dihydroxybutyrate (2,4-DHB) from erythrose and other four-carbon sugars are disclosed. The improved methods facilitate the production of 2,4-DHB that is a precursor for biorenewable and animal nutrition chemicals among others.
    Type: Application
    Filed: June 24, 2016
    Publication date: June 14, 2018
    Applicant: DFI USA, LLC
    Inventors: Jonathan STAPLEY, David GENDERS
  • Methods for the simultaneous electrolytic decarboxylation and reduction of sugars
    Patent number: 9957620
    Abstract: Methods for simultaneously decarboxylating carbohydrate acids and reducing carbohydrate aldehydes in a divided electrochemical cell having a central compartment separate from the anode and cathode are disclosed using a cation membrane and a bipolar membrane. The improved methods are more cost-efficient and environmentally friendly.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 1, 2018
    Assignee: DFI USA, LLC
    Inventors: J. David Genders, Jonathan A. Stapley