Patents by Inventor Andreas Gram

Andreas Gram 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).

  • Publication number: 20230039790
    Abstract: The present disclosure relates to a method of immobilizing a phenolic compound having a Mw?500 g/mol, wherein the method comprises the steps of ionizing the phenolic compound by subjecting it to a base; and contacting, under agitation, the ionized phenolic compound with a cross-linked resin comprising the functionality of —C(?0)—CHXCH2R, wherein X is chosen from the group consisting of Br, Cl, I, CN, OMs, OTs, or OTf, and R is H, CH3 or an branched or unbranched alkyl having 1 to 8 carbon atoms, in the presence of a base and a solvent. The present disclosure also relates to a method of removing phenolic compounds having a Mw?500 g/mol from a composition comprising compounds having at least one alkoxy silane group. The present disclosure also relates to the use of a method according to the present disclosure as well as to a product, from which at least one phenolic compound having a Mw>500 g/mol has been removed by a method according to the present disclosure.
    Type: Application
    Filed: December 16, 2020
    Publication date: February 9, 2023
    Inventors: Andreas GRAM, Oskar AXELSSON, Rikard LARSSON
  • Patent number: 9783565
    Abstract: The present invention relates to regulation of the p H of a liquefaction process. Presented is a method for treatment of a biomass feedstock wherein the biomass feedstock is subjected to liquefaction, at a p H of at most 4, by treatment with hot compressed liquid water (HCW) at subcritical and/or supercritical conditions to improve the conversion efficiency. The present invention is also directed to quenching of a liquefaction process according to above, preventing, minimizing or eliminating clogging and/or fouling of sticky biomass components in process equipment during processing as according to above, and to the use of additives in a biomass liquefaction process.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: October 10, 2017
    Assignee: Renmatix, Inc.
    Inventors: Anders Carlius, Andreas Gram, Corinne Granath, Haukur Jóhannesson, Göran Karlsson
  • Patent number: 9738943
    Abstract: The present invention describes a process for a controlled conversion of a biomass feedstock, wherein the process comprises the steps of: loading the biomass feedstock to at least one reactor; liquefaction of the biomass feedstock into a monomer and/or oligomer sugar mixture in said reactor by treatment in hot compressed liquid water (HCW) at sub- and/or super-critical condition; and removal of the monomer and/or oligomer sugar mixture, being the product molecules, to avoid continued detrimental decomposition.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: August 22, 2017
    Assignee: RENMATIX, INC.
    Inventors: Andreas Gram, Haukur Johannesson
  • Patent number: 9272056
    Abstract: The invention relates to a dynamic nuclear polarisation method for producing hyperpolarised carboxylates of organic amines and amino compounds and compositions for use in that method. The DNP agent preferably is a stable oxygen-based, sulphur-based or carbon-based trityl radical. Optionally a paramagnetic metal ion is present.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 1, 2016
    Assignee: GE Healthcare AS
    Inventors: Mikkel Thaning, Karl Andreas Gram
  • Publication number: 20160053337
    Abstract: The present invention describes a process for a controlled conversion of a biomass feedstock, wherein the process comprises the steps of: loading the biomass feedstock to at least one reactor; liquefaction of the biomass feedstock into a monomer and/or oligomer sugar mixture in said reactor by treatment in hot compressed liquid water (HCW) at sub- and/or super-critical condition; and removal of the monomer and/or oligomer sugar mixture, being the product molecules, to avoid continued detrimental decomposition.
    Type: Application
    Filed: October 28, 2011
    Publication date: February 25, 2016
    Applicant: Renmatix, Inc.
    Inventors: Rune Ekman, Andreas Gram, Haukur Johannesson
  • Publication number: 20150292049
    Abstract: The present invention describes a process for quenching a hydrothermal, dilute acid hydrolysis reaction of a biomass feedstock, wherein degradation of an aqueous monomer and/or oligomer sugar mixture is slowed down or stopped by flash cooling of the aqueous monomer and/or oligomer sugar mixture, and wherein the flash cooling ensures that a fraction of dissolved and volatile degradation byproducts are removed by a forming vapor stream, and wherein a lignin component, if present, is solidified into a structure with good de-watering characteristics, allowing for subsequent removal of the lignin component by separation, said process resulting in a hydrolyzed solution of sugar monomers and/or oligomers.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 15, 2015
    Inventors: Anders Carlius, Andreas Gram, Göran Karlsson, Haukur Jóhannesson, Torsten Werner
  • Publication number: 20150122245
    Abstract: The present invention describes a process involving liquefaction of a biomass slurry by treatment in hot compressed water (HCW), said process comprising: —a first decomposition step being performed at an average pH level of at most 4.5, wherein a hemicellulose fraction in the biomass slurry is decomposed to water soluble mono- and/or oligomers, and wherein a cellulose fraction undergoes a pre-treatment for decrystallization of the cellulose polymer; —a separation step; and —a second decomposition step, wherein the cellulose fraction in the biomass slurry is decomposed to water soluble mono- and/or oligomers; wherein both of the first and second decomposition steps are performed at sub-critical temperatures implying relatively moderate conditions.
    Type: Application
    Filed: April 30, 2013
    Publication date: May 7, 2015
    Applicant: REAC FUEL AB
    Inventors: Haukur Jóhannesson, Andreas Gram, Anders Carlius, Göran Karlsson
  • Publication number: 20140323716
    Abstract: The present invention relates to regulation of the p H of a liquefaction process. Presented is a method for treatment of a biomass feedstock wherein the biomass feedstock is subjected to liquefaction, at a p H of at most 4, by treatment with hot compressed liquid water (HCW) at subcritical and/or supercritical conditions to improve the conversion efficiency. The present invention is also directed to quenching of a liquefaction process according to above, preventing, minimizing or eliminating clogging and/or fouling of sticky biomass components in process equipment during processing as according to above, and to the use of additives in a biomass liquefaction process.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 30, 2014
    Applicant: REAC FUEL AB
    Inventors: Anders Carlius, Andreas Gram, Corinne Granath, Haukur Jöhannesson, Göran Karlsson
  • Publication number: 20110036453
    Abstract: DNP polarizer comprising a housing receiving a free end of a tubular fluid conduit positioned in fluid communication with a nozzle supported by said housing, said nozzle including an input port, a dispense port and a tapering inner surface or a stepped inner surface defining a nozzle flowpath extending in fluid communication between said input port and said dispense port.
    Type: Application
    Filed: August 27, 2008
    Publication date: February 17, 2011
    Applicant: GE HEALTHCARE LIMITED
    Inventors: Jan Henrik Ardenkjaer-larsen, David Dietrich, Karl Andreas Gram, Andrew M. Leach, Peter Miller, Eric J. Telfeyan, Mikkel Thaning, David B. Whitt
  • Publication number: 20080292551
    Abstract: The invention relates to a dynamic nuclear polarisation method for producing hyperpolarised carboxylates of organic amines and amino compounds and compositions for use in that method. The DNP agent preferably is a stable oxygen-based, sulphur-based or carbon-based trityl radical. Optionally a paramagnetic metal ion is present.
    Type: Application
    Filed: December 15, 2006
    Publication date: November 27, 2008
    Inventors: Mikkel Thaning, Karl Andreas Gram