Patents by Inventor Xiaolin Tang

Xiaolin Tang 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: 20210239396
    Abstract: Lyophilization methods for preparing protein formulations for long-term storage at room temperature or improved stability at refrigeration storage are provided. Specifically, the present application provides lyophilization methods to obtain a target percentage of residual moisture of a lyophilized product, such as 3-5% residual moisture. The secondary drying of the lyophilization can be conducted under controlling rate of desorption under a temperature which is similar to the shelf temperature of the primary drying. Alternatively, the lyophilization can be conducted without a distinguished secondary drying step.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 5, 2021
    Inventors: Xiaolin Tang, Mary Kleppe, Ravi Chari, Franco Tzul
  • Patent number: 11059896
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: July 13, 2021
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Publication number: 20210206870
    Abstract: The present invention provides stable liquid pharmaceutical formulations comprising a human bispecific antibody that specifically binds to human CD20 and human CD3. In certain embodiments, the formulations contain, in addition to the bispecific antibody, a buffer, a surfactant, and a sugar. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability upon stress and storage.
    Type: Application
    Filed: December 9, 2020
    Publication date: July 8, 2021
    Inventors: Yuan Cheng, Xiaolin Tang
  • Publication number: 20210046182
    Abstract: The present disclosure includes high concentration, low viscosity pharmaceutical formulations that include an anti-C5 antibody or antigen-binding fragment thereof and arginine. Such formulations may be provided in association with an RNAi molecule such as cemdisiran. Methods of treating C5-associated diseases such as PNH and aHUS are also provided.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 18, 2021
    Inventors: Mary Kleppe, Mayank Patel, Xiaolin Tang
  • Publication number: 20210039683
    Abstract: The present invention relates to a platform door control apparatus based on a double 2-vote-2 architecture, including a security communication and logic processing module, a driver collection module, and a maintenance module, the security communication and logic processing module is separately connected to the driver collection module and the maintenance module, and both the security communication and logic processing module and the driver collection module are devices using the double 2-vote-2 architecture. Compared with the prior art, the present invention has the following advantages of effectively improving linkage efficiency of a signal system and a platform door system, and the like.
    Type: Application
    Filed: March 15, 2019
    Publication date: February 11, 2021
    Inventors: Ruiyuan YE, Xiaolin TANG, Liang CHEN, Zhijun JI, Chang LIU, Chun YANG, Xiaonan LIU, Jing XU
  • Publication number: 20200046834
    Abstract: Stable lyophilized therapeutic protein compositions and their methods of manufacture are provided. Specifically, the use of water as a solid cake plasticizer and protein stabilizer is described. Also, the inclusion of a multicomponent stabilizer comprising a larger molecular entity and a smaller molecular entity is described. Also, the inclusion of post-drying annealing under certain conditions improves protein stability. Proteins are predicted to remain stable over 24 months at 25° C.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Inventors: Xiaolin Tang, David Brett Ludwig
  • Publication number: 20190367624
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Patent number: 10435473
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 8, 2019
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Publication number: 20190231877
    Abstract: The present disclosure provides a stable protein composition containing a surfactant and having less than 400 subvisible particles of 10 microns or greater diameter per container, or less than 10,000 subvisible particles of 2 microns or greater per container. A method of manufacturing such a stable protein composition is disclosed, which includes a unit of operation that removes or decreases an esterase activity that degrades the surfactant. The unit of operation may be hydrophobic interaction chromatography or filtration, mixed mode chromatography, or the like.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Inventors: Hanne BAK, John MATTILA, Ning LI, Xiaolin TANG, Daniel DIX, Chen LI, William MARKIS
  • Patent number: 10342876
    Abstract: The present disclosure provides a stable protein composition containing a surfactant and having less than 400 subvisible particles of 10 microns or greater diameter per container, or less than 10,000 subvisible particles of 2 microns or greater per container. A method of manufacturing such a stable protein composition is disclosed, which includes a unit of operation that removes or decreases an esterase activity that degrades the surfactant. The unit of operation may be hydrophobic interaction chromatography or filtration, mixed mode chromatography, or the like.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: July 9, 2019
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Hanne Bak, John Mattila, Ning Li, Xiaolin Tang, Daniel Dix, Chen Li, William Markis
  • Publication number: 20190083618
    Abstract: Biopharmaceutical compositions and drug products disclosed herein exhibit reduced amounts of subvisible particle formation. Compositions and drug products disclosed herein comprise a protein and a surfactant or stabilizer including high percentage amounts (e.g., at least 97%) of a long-chain fatty acid ester. Also disclosed herein are methods of preparing and storing such compositions and drug products.
    Type: Application
    Filed: August 10, 2018
    Publication date: March 21, 2019
    Applicant: Regeneron Pharmaceuticals, Inc.
    Inventors: Mayank PATEL, Stacy WASINGER, Danya SPRITZER, Xiaolin TANG
  • Publication number: 20190021952
    Abstract: The present invention provides drug products comprising sealed containers containing a stable liquid recombinant protein, such as an antigen-binding protein, composition and a headspace gas comprising less than 5% oxygen, and methods of producing same. As such, the present invention provides a method for controlling the oxygen levels in the headspace of a drug product in a sealed container comprising a stable liquid recombinant protein composition and a headspace gas comprising less than 21% oxygen.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 24, 2019
    Inventors: Xiaolin TANG, David Brett LUDWIG
  • Publication number: 20180099049
    Abstract: Stable lyophilized therapeutic protein compositions and their methods of manufacture are provided. Specifically, the use of water as a solid cake plasticizer and protein stabilizer is described. Also, the inclusion of a multicomponent stabilizer comprising a larger molecular entity and a smaller molecular entity is described. Also, the inclusion of post-drying annealing under certain conditions improves protein stability. Proteins are predicted to remain stable over 24 months at 25° C.
    Type: Application
    Filed: October 6, 2017
    Publication date: April 12, 2018
    Inventors: Xiaolin TANG, David Brett LUDWIG
  • Publication number: 20180002426
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Application
    Filed: February 3, 2017
    Publication date: January 4, 2018
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Publication number: 20160101181
    Abstract: The present disclosure provides a stable protein composition containing a surfactant and having less than 400 subvisible particles of 10 microns or greater diameter per container, or less than 10,000 subvisible particles of 2 microns or greater per container. A method of manufacturing such a stable protein composition is disclosed, which includes a unit of operation that removes or decreases an esterase activity that degrades the surfactant. The unit of operation may be hydrophobic interaction chromatography or filtration, mixed mode chromatography, or the like.
    Type: Application
    Filed: October 8, 2015
    Publication date: April 14, 2016
    Inventors: Hanne BAK, John MATTILA, Ning LI, Xiaolin TANG, Daniel DIX, Chen LI, William MARKIS
  • Publication number: 20160102147
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Application
    Filed: December 9, 2015
    Publication date: April 14, 2016
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Patent number: 9238692
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 19, 2016
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Publication number: 20150100030
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 9, 2015
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Patent number: 8945559
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: February 3, 2015
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Daniel B. Dix, Xiaolin Tang
  • Publication number: 20120097565
    Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 26, 2012
    Applicant: REGENERON PHARMACEUTICALS, INC.
    Inventors: Daniel B. DIX, Xiaolin TANG