Patents by Inventor Sonja Offner
Sonja Offner 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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Publication number: 20240117308Abstract: Herein is reported a method for producing a thymocyte supernatant comprising the steps of co-cultivating thymocytes and mononuclear cells at a cell ratio of at least 0.5:1.2 in the presence of phorbol-12-myristate-13-acetate and Phytohemagglutinin M for up to 60 hours, and separating the co-cultivation medium from the cells and thereby producing the thymocyte supernatant.Type: ApplicationFiled: December 20, 2023Publication date: April 11, 2024Applicant: Hoffmann-La Roche Inc.Inventors: Sonja OFFNER, Markus HORVATH, Ingried SAAM
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Patent number: 11952586Abstract: Herein is reported a method for the co-cultivation of single deposited B-cells, which can be of any source, with EL-4 B5 feeder cells in a suitable co-cultivation medium. In the herein reported methods the EL-4 B5 cells have been irradiated with a dose of less than 40 Gy, preferably 9.5 Gy or less. Thereby the EL-4 B5 cells have a higher viability and maintain the ability to divide in cultivation at doses less than 6 Gy.Type: GrantFiled: May 29, 2020Date of Patent: April 9, 2024Assignee: Hoffmann-La Roche Inc.Inventors: Sonja Offner, Friederike Jung
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Patent number: 11891624Abstract: Herein is reported a method for producing a thymocyte supernatant comprising the steps of co-cultivating thymocytes and mononuclear cells at a cell ratio of at least 0.5:1.2 in the presence of phorbol-12-myristate-13-acetate and Phytohemagglutinin M for up to 60 hours, and separating the co-cultivation medium from the cells and thereby producing the thymocyte supernatant.Type: GrantFiled: October 2, 2019Date of Patent: February 6, 2024Assignee: Hoffmann-La Roche Inc.Inventors: Sonja Offner, Markus Horvath, Ingried Saam
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Publication number: 20240002794Abstract: Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.Type: ApplicationFiled: June 30, 2023Publication date: January 4, 2024Applicant: Hoffmann-La Roche Inc.Inventors: Sonja Offner, Friederike Jung
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Publication number: 20230399396Abstract: Herein is reported a co-cultivation system for co-cultivating a pool of rabbit B-cells or single deposited rabbit B-cells wherein cells CD40L expressing CHO cells are used as feeder in the presence of TL-2 and TL-21.Type: ApplicationFiled: August 11, 2022Publication date: December 14, 2023Applicant: Hoffmann-La Roche Inc.Inventors: Josef Endl, Jens Fischer, Peter Kern, Sonja Offner, Josef Platzer, Stefan Seeber
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Publication number: 20220135672Abstract: Herein is reported an antibody binding to rabbit CD19 comprising (a) a HVR-H1 comprising the amino acid sequence of SEQ ID NO: 32 or 33 or 34, (b) a HVR-H2 comprising the amino acid sequence of SEQ ID NO: 35 or 36, (c) a HVR-H3 comprising the amino acid sequence of SEQ ID NO: 37, (d) a HVR-L1 comprising the amino acid sequence of SEQ ID NO: 38, (e) a HVR-L2 comprising the amino acid sequence of SEQ ID NO: 39, and (f) a HVR-L3 comprising the amino acid sequence of SEQ ID NO: 40, as well as methods of using the same, especially in the identification and selection of antibody producing rabbit B-cells.Type: ApplicationFiled: June 29, 2021Publication date: May 5, 2022Applicant: Hoffmann-La Roche Inc.Inventors: Alexander Haas, Friederike Jung, Stefan Klostermann, Sonja Offner
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Publication number: 20210123019Abstract: Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.Type: ApplicationFiled: December 3, 2020Publication date: April 29, 2021Applicant: Hoffmann-La Roche Inc.Inventors: Sonja Offner, Friederike Jung
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Publication number: 20210062149Abstract: Herein is reported a method for obtaining a B-cell comprising the following steps a) labeling B-cells, b) depositing the labeled B-cells as single cells, c) co-cultivating the single cell deposited B-cells with feeder cells, d) selecting a B-cell proliferating and secreting IgG in step c) and thereby obtaining a B-cell. The labeling can be of IgG+CD19+-B-cells, IgG+CD38+-B-cells, IgG+CD268+-B-cells, IgG?CD138+-B-cells, CD27+CD138+-B-cells or CD3?CD27+-B-cells. The method can comprise the step of incubating said B-cells at 37° C. for one hour in EL-4 B5 medium prior to the depositing step. The method can also comprise the step of centrifuging said single cell deposited B-cells prior to the co-cultivation. In the co-cultivation a feeder mix comprising interleukin-1beta, and tumor necrosis factor alpha and Staphylococcus aureus strain Cowans cells or BAFF or interleukin-2 and/or interleukin-10 and/or interleukin-6 and/or interleukin-4 can be used.Type: ApplicationFiled: June 12, 2020Publication date: March 4, 2021Applicant: Hoffmann-La Roche Inc.Inventors: Josef ENDL, Natalie SCHUHMACHER, Sonja OFFNER, Josef PLATZER, Basile SIEWE, Irmgard THOREY
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Patent number: 10889802Abstract: Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.Type: GrantFiled: September 27, 2018Date of Patent: January 12, 2021Assignee: HOFFMANN-LA ROCHE INC.Inventors: Sonja Offner, Friederike Jung
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Publication number: 20200399596Abstract: Herein is reported a method for the co-cultivation of single deposited B-cells, which can be of any source, with EL-4 B5 feeder cells in a suitable co-cultivation medium. In the herein reported methods the EL-4 B5 cells have been irradiated with a dose of less than 40 Gy, preferably 9.5 Gy or less. Thereby the EL-4 B5 cells have a higher viability and maintain the ability to divide in cultivation at doses less than 6 Gy.Type: ApplicationFiled: May 29, 2020Publication date: December 24, 2020Applicant: Hoffmann-La Roche Inc.Inventors: Sonja OFFNER, Friederike JUNG
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Publication number: 20200325224Abstract: One aspect as reported herein is using a method comprising the step of immunizing an experimental animal, three times with primary cynomolgus PBLs, whereby the PBLs are optionally enriched for T cells without using primary human PBLs as immunogen and without using a denaturing agent for producing a human cynomolgus cross-reactive antibody specifically binding to human CD3 epsilon of SEQ ID NO: 02 and specifically binding to a polypeptide of SEQ ID NO: 01, wherein the human cynomolgus cross-reactive antibody specifically binds to human and cynomolgus T cells, activates human T cells and does not bind to the same epitope as the antibody OKT3, the antibody UCHT1 and/or antibody the SP34.Type: ApplicationFiled: January 23, 2020Publication date: October 15, 2020Applicant: Hoffmann-La Roche Inc.Inventors: Georg Tiefenthaler, Ekkehard Moessner, Valeria Lifke, Josef Platzer, Sonja Offner, Christiane Neumann, Mirko Ritter
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Publication number: 20200299385Abstract: One aspect as reported herein is using a method comprising the step of immunizing an experimental animal, three times with primary cynomolgus PBLs, whereby the PBLs are optionally enriched for T cells without using primary human PBLs as immunogen and without using a denaturing agent for producing a human cynomolgus cross-reactive antibody specifically binding to human CD3 epsilon of SEQ ID NO: 02 and specifically binding to a polypeptide of SEQ ID NO: 01, wherein the human cynomolgus cross-reactive antibody specifically binds to human and cynomolgus T cells, activates human T cells and does not bind to the same epitope as the antibody OKT3, the antibody UCHT1 and/or antibody the SP34.Type: ApplicationFiled: January 23, 2020Publication date: September 24, 2020Applicant: Hoffmann-La Roche Inc.Inventors: Georg Tiefenthaler, Ekkehard Moessner, Valeria Lifke, Josef Platzer, Sonja Offner, Christiane Neumann, Mirko Ritter
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Publication number: 20200165566Abstract: Herein is reported a method for producing a thymocyte supernatant comprising the steps of co-cultivating thymocytes and mononuclear cells at a cell ratio of at least 0.5:1.2 in the presence of phorbol-12-myristate-13-acetate and Phytohemagglutinin M for up to 60 hours, and separating the co-cultivation medium from the cells and thereby producing the thymocyte supernatant.Type: ApplicationFiled: October 2, 2019Publication date: May 28, 2020Applicant: Hoffmann-La Roche Inc.Inventors: Sonja OFFNER, Markus Horvath, Ingried Saam
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Publication number: 20190241661Abstract: Herein is reported a method for determining complement dependent cytotoxicity of a composition comprising i) a first binding site that specifically binds to a first epitope on a first antigen, which is conjugated to a first Fc-region polypeptide of human origin, and ii) a second binding site that specifically binds to a second epitope on a second antigen, which is conjugated to a second Fc-region polypeptide of human origin, wherein the method comprises the steps of incubating a cell expressing the first antigen and the second antigen with the composition and a mixture of anti-mCRP antibodies; adding normal human serum or rabbit complement to the mixture; and determining cell lysis and thereby determining complement dependent cytotoxicity of the composition.Type: ApplicationFiled: December 13, 2018Publication date: August 8, 2019Applicant: Hoffmann-La Roche Inc.Inventors: Stefan Dengl, Sonja Offner
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Publication number: 20190153091Abstract: Herein is reported a co-cultivation system for co-cultivating a pool of rabbit B-cells or single deposited rabbit B-cells wherein cells CD40L expressing CHO cells are used as feeder in the presence of IL-2 and IL-21.Type: ApplicationFiled: October 3, 2018Publication date: May 23, 2019Applicant: Hoffmann-La Roche Inc.Inventors: Josef Endl, Jens Fischer, Peter Kern, Sonja Offner, Josef Platzer, Stefan Seeber
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Publication number: 20190017022Abstract: Herein is reported a method for co-cultivating one or more B-cells comprising the step of incubating the one or more B-cells with EL4-B5 cells, whereby the EL4-B5 cells have been obtained/are from a cultivation of EL4-B5 cells that has a cell density of from 600,000 cells/ml up to 1,500,000 cells/ml.Type: ApplicationFiled: September 27, 2018Publication date: January 17, 2019Applicant: Hoffmann-La Roche Inc.Inventors: Sonja Offner, Friederike Jung
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Publication number: 20180298335Abstract: Herein is reported a method for obtaining a B-cell comprising the following steps a) labeling B-cells, b) depositing the labeled B-cells as single cells, c) co-cultivating the single cell deposited B-cells with feeder cells, d) selecting a B-cell proliferating and secreting IgG in step c) and thereby obtaining a B-cell. The labeling can be of IgG+CD19+-B-cells, IgG+CD38+-B-cells, IgG+CD268+-B-cells, IgG?CD138+-B-cells, CD27+CD138+-B-cells or CD3?CD27+-B-cells. The method can comprise the step of incubating said B-cells at 37° C. for one hour in EL-4 B5 medium prior to the depositing step. The method can also comprise the step of centrifuging said single cell deposited B-cells prior to the co-cultivation. In the co-cultivation a feeder mix comprising interleukin-1beta, and tumor necrosis factor alpha and Staphylococcus aureus strain Cowans cells or BAFF or interleukin-2 and/or interleukin-10 and/or interleukin-6 and/or interleukin-4 can be used.Type: ApplicationFiled: March 27, 2018Publication date: October 18, 2018Applicant: Hoffmann-La Roche Inc.Inventors: Josef Endl, Natalie Schuhmacher, Sonja Offner, Josef Platzer, Basile Siewe, Irmgard Thorey
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Publication number: 20180017572Abstract: Herein is reported a method for determining complement dependent cytotoxicity of a composition comprising i) a first binding site that specifically binds to a first epitope on a first antigen, which is conjugated to a first Fc-region polypeptide of human origin, and ii) a second binding site that specifically binds to a second epitope on a second antigen, which is conjugated to a second Fc-region polypeptide of human origin, wherein the method comprises the steps of incubating a cell expressing the first antigen and the second antigen with the composition; adding rabbit complement to the mixture; and determining cell lysis and thereby determining complement dependent cytotoxicity of the composition.Type: ApplicationFiled: June 16, 2017Publication date: January 18, 2018Applicant: Hoffmann-La Roche Inc.Inventors: Sonja Offner, Karlheinz Zick
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Publication number: 20170233475Abstract: One aspect as reported herein is using a method comprising the step of immunizing an experimental animal, three times with primary cynomolgus PBLs, whereby the PBLs are optionally enriched for T cells without using primary human PBLs as immunogen and without using a denaturing agent for producing a human cynomolgus cross-reactive antibody specifically binding to human CD3 epsilon of SEQ ID NO: 02 and specifically binding to a polypeptide of SEQ ID NO: 01, wherein the human cynomolgus cross-reactive antibody specifically binds to human and cynomolgus T cells, activates human T cells and does not bind to the same epitope as the antibody OKT3, the antibody UCHT1 and/or antibody the SP34.Type: ApplicationFiled: November 22, 2016Publication date: August 17, 2017Applicant: Hoffmann-La Roche Inc.Inventors: Georg Tiefenthaler, Ekkehard Moessner, Valeria Lifke, Josef Platzer, Sonja Offner, Christiane Neumann, Mirko Ritter
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Publication number: 20160251621Abstract: Herein is reported a method for obtaining a B-cell comprising the following steps a) labeling B-cells, b) depositing the labeled B-cells as single cells, c) co-cultivating the single cell deposited B-cells with feeder cells, d) selecting a B-cell proliferating and secreting IgG in step c) and thereby obtaining a B-cell. The labeling can be of IgG+CD19+-B-cells, IgG+CD38+-B-cells, IgG+CD268+-B-cells, IgG?CD138+-B-cells, CD27+CD138+-B-cells or CD3?CD27+-B-cells. The method can comprise the step of incubating said B-cells at 37° C. for one hour in EL-4 B5 medium prior to the depositing step. The method can also comprise the step of centrifuging said single cell deposited B-cells prior to the co-cultivation. In the co-cultivation a feeder mix comprising interleukin-1beta, and tumor necrosis factor alpha and Staphylococcus aureus strain Cowans cells or BAFF or interleukin-2 and/or interleukin-10 and/or interleukin-6 and/or interleukin-4 can be used.Type: ApplicationFiled: May 6, 2016Publication date: September 1, 2016Applicant: Hoffmann-La Roche Inc.Inventors: Josef Endl, Natalie Schuhmacher, Sonja Offner, Josef Platzer, Basile Siewe, Irmgard Thorey