Patents by Inventor Gunnar Glad
Gunnar Glad 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).
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Patent number: 11439926Abstract: The present invention is within the field of chromatography. More precisely, it relates to a novel chromatography medium, namely a hydrophobic medium provided with different lids excluding molecules over a certain size due to the porosity of the hydrophobic medium and/or the porosity of the lid. The invention also relates to use of the separation medium for purification of large molecules, which do not enter the separation medium, as well as small molecules, which enter the separation medium and are eluted from there.Type: GrantFiled: December 3, 2019Date of Patent: September 13, 2022Assignee: Cytiva BioProcess R&D ABInventors: Jan Bergstrom, Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel, Nils Norrman, Tobias E. Soderman
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Publication number: 20220266170Abstract: The present invention is within the field of chromatography. More precisely, it relates to a novel chromatography medium, namely a hydrophobic medium provided with different lids excluding molecules over a certain size due to the porosity of the hydrophobic medium and/or the porosity of the lid. The invention also relates to use of the separation medium for purification of large molecules, which do not enter the separation medium, as well as small molecules, which enter the separation medium and are eluted from there.Type: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Inventors: Jan Bergstrom, Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel, Nils Norrman, Tobias E. Soderman
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Patent number: 10751645Abstract: The present invention relates to a chromatography ligand defined by the following formula R1—R2—N(R3)—R4—R5 wherein R1 is a substituted or non-substituted phenyl group; R2 is a hydrocarbon chain comprising 0-4 carbon atoms; R3 is a hydrocarbon chain comprising 1-3 carbon atoms; R4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.Type: GrantFiled: January 29, 2018Date of Patent: August 25, 2020Assignee: GE Healthcare BioProcess R&D ABInventors: Carina Engstrand, Annika Forss, Gunnar Glad, Bo-Lennart Johansson, Hans J Johansson, Jean-Luc Maloisel
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Publication number: 20200101398Abstract: The present invention is within the field of chromatography. More precisely, it relates to a novel chromatography medium, namely a hydrophobic medium provided with different lids excluding molecules over a certain size due to the porosity of the hydrophobic medium and/or the porosity of the lid. The invention also relates to use of the separation medium for purification of large molecules, which do not enter the separation medium, as well as small molecules, which enter the separation medium and are eluted from there.Type: ApplicationFiled: December 3, 2019Publication date: April 2, 2020Applicant: GE Healthcare BioProcess R&D ABInventors: JAN BERGSTROM, GUNNAR GLAD, BO-LENNART JOHANSSON, JEAN-LUC MALOISEL, NILS NORRMAN, TOBIAS E. SODERMAN
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Patent number: 10562007Abstract: The present invention relates to a separation matrix, which comprises a support; extenders coupled to an outer part of said support; and ligands coupled to said extenders, wherein the part of the support to which the extenders are coupled constitutes less than 50% of the volume of the separation matrix. The invention also embraces a method of preparing such a separation matrix, as well as a process wherein the separation media is used.Type: GrantFiled: July 22, 2008Date of Patent: February 18, 2020Assignee: GE Healthcare BioProcess R&D ABInventors: Andreas Axen, Jan Bergstrom, Gunnar Glad, Bo-Lennart Johansson, Nils Norrman
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Patent number: 10493380Abstract: The present invention is within the field of chromatography. More precisely, it relates to a novel chromatography medium, namely a hydrophobic medium provided with different lids excluding molecules over a certain size due to the porosity of the hydrophobic medium and/or the porosity of the lid. The invention also relates to use of the separation medium for purification of large molecules, which do not enter the separation medium, as well as small molecules, which enter the separation medium and are eluted from there.Type: GrantFiled: June 15, 2016Date of Patent: December 3, 2019Assignee: GE Healthcare BioProcess R&D ABInventors: Jan Bergstrom, Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel, Nils Norrman, Tobias E. Soderman
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Publication number: 20180154281Abstract: The present invention relates to a chromatography ligand defined by the following formula R1—R2—N(R3)—R4—R5 wherein R1 is a substituted or non-substituted phenyl group; R2 is a hydrocarbon chain comprising 0-4 carbon atoms; R3 is a hydrocarbon chain comprising 1-3 carbon atoms; R4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.Type: ApplicationFiled: January 29, 2018Publication date: June 7, 2018Applicant: GE Healthcare BioProcess R&D ABInventors: CARINA ENGSTRAND, ANNIKA FORSS, GUNNAR GLAD, BO-LENNART JOHANSSON, HANS J JOHANSSON, JEAN-LUC MALOISEL
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Patent number: 9878266Abstract: The present invention relates to a chromatography ligand defined by the following formula R1—R2—N(R3)—R4—R5 wherein R1 is a substituted or non-substituted phenyl group; R2 is a hydrocarbon chain comprising 0-4 carbon atoms; R3 is a hydrocarbon chain comprising 1-3 carbon atoms; R4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.Type: GrantFiled: November 17, 2014Date of Patent: January 30, 2018Assignee: GE Healthcare BioProcess R&D ABInventors: Carina Engstrand, Annika Forss, Gunnar Glad, Bo-Lennart Johansson, Hans J Johansson, Jean-Luc Maloisel
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Publication number: 20170050121Abstract: The present invention is within the field of chromatography. More precisely, it relates to a novel chromatography medium, namely a hydrophobic medium provided with different lids excluding molecules over a certain size due to the porosity of the hydrophobic medium and/or the porosity of the lid. The invention also relates to use of the separation medium for purification of large molecules, which do not enter the separation medium, as well as small molecules, which enter the separation medium and are eluted from there.Type: ApplicationFiled: June 15, 2016Publication date: February 23, 2017Inventors: JAN BERGSTROM, GUNNAR GLAD, BO-LENNART JOHANSSON, JEAN-LUC MALOISEL, NILS NORRMAN, TOBIAS E. SODERMAN
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Patent number: 9433923Abstract: The present invention relates to a novel non-cross linked chromatography media provided with glutathione ligands which may or may not be provided with magnetic particles. The chromatography media is used for production of an affinity media provided with gluthatione ligands for adsorption of GST-tagged proteins.Type: GrantFiled: June 11, 2013Date of Patent: September 6, 2016Assignee: GE HEALTHCARE BIO-SCIENCES ABInventors: Gunnar Glad, Therese Graner, Nils Norrman
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Patent number: 9155980Abstract: The present invention relates to a separation medium, comprising an inner core of a porous material provided with charged ligands, and an outer lid comprising a porous material provided with charged ligands, wherein the charge of the ligands in the inner core is opposite that of the charge of the ligands in the lid. The present invention also relates to a method for biomolecule separation comprising applying a sample to the above separation medium, wherein large molecules are prevented from entering the medium by charge repulsion from the medium and small molecules are captured in the inner core.Type: GrantFiled: February 20, 2013Date of Patent: October 13, 2015Assignee: GE Healthcare Bio-Sciences ABInventors: Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel, Nils Norrman
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Publication number: 20150151276Abstract: The present invention relates to a novel non-cross linked chromatography media provided with glutathione ligands which may or may not be provided with magnetic particles. The chromatography media is used for production of an affinity media provided with gluthatione ligands for adsorption of GST-tagged proteins.Type: ApplicationFiled: June 11, 2013Publication date: June 4, 2015Inventors: Gunnar Glad, Therese Graner, Nils Norrman
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Publication number: 20150073128Abstract: The present invention relates to a chromatography ligand defined by the following formula R1—R2—N(R3)—R4—R5 wherein R1 is a substituted or non-substituted phenyl group; R2 is a hydrocarbon chain comprising 0-4 carbon atoms; R3 is a hydrocarbon chain comprising 1-3 carbon atoms; R4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Applicant: GE HEALTHCARE BIO-SCIENCES ABInventors: CARINA ENGSTRAND, ANNIKA FORSS, GUNNAR GLAD, BO-LENNART JOHANSSON, HANS J JOHANSSON, JEAN-LUC MALOISEL
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Patent number: 8895710Abstract: The present invention relates to a chromatography ligand defined by the following formula R1—R2—N(R3)—R4—R5 wherein R1 is a substituted or non-substituted phenyl group; R2 is a hydrocarbon chain comprising 0-4 carbon atoms; R3 is a hydrocarbon chain comprising 1-3 carbon atoms; R4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.Type: GrantFiled: January 4, 2011Date of Patent: November 25, 2014Assignee: GE Healthcare Bio-Sciences ABInventors: Carina Engstrand, Annika Forss, Gunnar Glad, Bo-Lennart Johansson, Hans J. Johansson, Jean-Luc Maloisel
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Patent number: 8858800Abstract: The present invention relates to a method of manufacturing a chromatography matrix comprising providing a polysaccharide carrier comprising available hydroxyl groups; and reacting said hydroxyl groups with vinyl sulphonate to provide a sulphonate-functionalized (S-functionalized) cation exchanger. The hydroxyl groups of the carrier may be hydroxyls of the agarose polymer; or alternatively they may be provided on extenders such as polyhydroxyfunctional polymers. In one embodiment, the carrier is made of agarose with improved flow pressure properties.Type: GrantFiled: August 30, 2006Date of Patent: October 14, 2014Assignee: GE Healthcare Bio-Sciences ABInventors: Andreas Axen, Gunnar Glad, Henrik Ihre, Anders Larsson, Nils Norrman
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Patent number: 8685248Abstract: The present invention relates to a separation matrix comprised of a porous support to which ligands have been immobilized, wherein said ligands comprise at least one aliphatic sulphonamide. The nitrogen of the sulphonamide may be a secondary or tertiary amine. The invention also relates to a chromatography column that contains the described separation matrix, as well as to a method of isolating immunoglobulin-like compounds by adsorption to a separation matrix that comprises aliphatic sulphonamide ligands.Type: GrantFiled: February 22, 2010Date of Patent: April 1, 2014Assignee: GE Healthcare Bio-Sciences ABInventors: Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel, Nils Norrman
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Patent number: 8648146Abstract: Disclosed is a method for activating a solid support material with epoxy groups and for immobilizing ligands thereon, utilizing phase transfer catalytic conditions. The method permits the introduction of epoxy groups and specific nucleophilic ligands on the support material with a high level of substitution. Furthermore, the invention provides a general method for immobilizing a ligand for use in a wide variety of chromatographic separation procedures such as ion exchange chromatography, hydrophobic interaction chromatography (HIC), reverse phase chromatography (RPC), or affinity chromatography.Type: GrantFiled: June 6, 2012Date of Patent: February 11, 2014Assignee: GE Healthcare Bio-Sciences ABInventors: Gunnar Glad, Jean-Luc Maloisel, Nicolas Thevenin
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Publication number: 20140017813Abstract: The present invention relates to a method for depletion of undesired molecules and/or enrichment of desired molecules from a sample comprising high abundant as well as low abundant molecules, comprising the following steps: a) providing a separation material comprising a solid phase (beads) comprising an inner porous core material comprising magnetic particles and an outer porous shell with a porosity equal or denser than that of the shell; b) adding the sample to the separation material; c) adsorbing a first fraction of molecules with a molecular weight of 500-50 000 Da in the core and simultaneously excluding a second fraction of molecules from binding to the core and the shell, wherein the molecular weight of the second fraction molecules is at least 5 preferably 10 times higher than the molecular weight of the first fraction and d) eluting the desired molecules from the separation material, wherein step d) and optionally step c) is performed using an oscillating power/field applied over the separation matType: ApplicationFiled: March 29, 2012Publication date: January 16, 2014Applicant: GE HEALTHCARE BIO-SCIENCES ABInventors: Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel
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Patent number: 8470148Abstract: The present invention relates to a method for sample application and separation. More closely, the invention relates to convenient direct loading of a biomolecule sample via magnetic beads to, for example, a gel before electrophoresis. In this way, the invention combines elution and application steps with minimal losses of sample. Thus, the invention relates to a method for sample application of biomolecules on a separation media, comprising the following steps: a) obtaining said biomolecules from a sample by magnetic beads; b) applying the magnetic beads with the biomolecules to a separation medium; c) releasing the biomolecules into the separation media, and d) separation of the biomolecules from each other in the separation medium.Type: GrantFiled: January 19, 2009Date of Patent: June 25, 2013Assignee: GE Healthcare Bio-Sciences ABInventors: Gunnar Glad, Nils Norrman, Susanna Lindman
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Patent number: 8372286Abstract: The present invention relates to a method for production of separation media using a so called Spinning Disc technology wherein the porosities of the beads are optimized in such a way that a desired biomolecule may be separated from a complex sample. The method comprises the following steps: a) feeding a 4-8% polysaccharide solution, which has a viscosity within 350-450 mPas, at 65-75° C. to one or more spinning discs at 3001-3010 rpm to form polysaccharide beads; b) capturing said formed polysaccharide beads in a capturing bath; wherein the porosity of the polysaccharide beads is controlled by varying the temperature of the capturing between 15 and 27° C., preferably between 17.5 and 24.6° C. The method yields porosities that prevent molecules larger than 150 000 g/mol to diffuse into the beads. The invention also relates to separation media produced by the method and use thereof for purification of biomolecules, in particular monoclonal antibodies.Type: GrantFiled: January 30, 2009Date of Patent: February 12, 2013Assignee: GE Healthcare Bio-Sciences ABInventors: Gunnar Glad, Bo-Lennart Johansson, Jean-Luc Maloisel, Nils Norrman, Ake Stenholm