Patents by Inventor Chen Mao

Chen Mao 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: 20250109136
    Abstract: The invention relates generally crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the compound(S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino) -6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one that is an inhibitor of Bruton's tyrosine kinase. In some aspects, the crystalline salts are single polymorphs.
    Type: Application
    Filed: August 2, 2024
    Publication date: April 3, 2025
    Applicant: Genentech, Inc.
    Inventors: Chen MAO, Dawen KOU, Po-Chang CHIANG
  • Publication number: 20250000802
    Abstract: The present disclosure relates generally to rapid-release pharmaceutical dosage unit tablets containing small molecule API medicines. In some instances the API is an inhibitor of Ras proteins, such as K-Ras, H-Ras, and N-Ras, that have a G12C mutation. Such tablets also contain a disintegrant and an excipient. More specifically, the present disclosure relates to pharmaceutical dosage unit tablets containing divarasib, or a pharmaceutically acceptable salt thereof, an extragranular disintegrant, and an extragranular excipient, and to processes for preparing the tablets from granules formed by dry granulation.
    Type: Application
    Filed: June 5, 2024
    Publication date: January 2, 2025
    Applicants: HOFFMANN-LA ROCHE INC., GENENTECH, INC.
    Inventors: Samuel Hsiao-Chieh YANG, Po-Chang CHIANG, Chen MAO, Avinash MURTHY, Claudia VICENTE MARTIN
  • Publication number: 20240197661
    Abstract: Methods of treating psoriasis with sustained release compression coated tablet dosage forms comprising certain MHF prodrugs are provided.
    Type: Application
    Filed: October 24, 2023
    Publication date: June 20, 2024
    Inventors: Peter A. VIRSIK, Sami KARABORNI, Laura Elizabeth BAUER, Chen MAO, Ching Wah CHONG
  • Publication number: 20230339957
    Abstract: The invention relates generally crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro- [3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one that is an inhibitor of Bruton’s tyrosine kinase. In some aspects, the crystalline salts are single polymorphs.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 26, 2023
    Applicant: Genentech, Inc.
    Inventors: Chen MAO, Dawen KOU, Po-Chang CHIANG
  • Publication number: 20220267340
    Abstract: The invention relates generally crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one that is an inhibitor of Bruton's tyrosine kinase. In some aspects, the crystalline salts are single polymorphs.
    Type: Application
    Filed: May 9, 2022
    Publication date: August 25, 2022
    Applicant: Genentech, Inc.
    Inventors: Chen MAO, Dawen KOU, Po-Chang CHIANG
  • Patent number: 11365197
    Abstract: The invention relates generally crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one that is an inhibitor of Bruton's tyrosine kinase. In some aspects, the crystalline salts are single polymorphs.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: June 21, 2022
    Assignee: Genentech, Inc.
    Inventors: Chen Mao, Dawen Kou, Po-Chang Chiang
  • Publication number: 20210145755
    Abstract: Improved oral dosage forms of methyl hydrogen fumarate and prodrugs thereof are disclosed. Methods of treating diseases such as multiple sclerosis and psoriasis using such dosage forms are also disclose.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Sami Karaborni, Sarina Grace Harris Ma, Chen Mao, Ching Wah Chong, Peter Robert Prinz Freed, Mesut Ciper, Stefanie Krenzlin, David Wustrow, Peter Virsik
  • Patent number: 10940117
    Abstract: Improved oral dosage forms of methyl hydrogen fumarate and prodrugs thereof are disclosed. Methods of treating diseases such as multiple sclerosis and psoriasis using such dosage forms are also disclose.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: March 9, 2021
    Assignee: Arbor Pharmaceuticals, LLC
    Inventors: Sami Karaborni, Sarina Grace Harris Ma, Chen Mao, Ching Wah Chong, Peter Robert Prinz Freed, Mesut Ciper, Stefanie Krenzlin, David J. Wustrow, Peter A. Virsik
  • Publication number: 20200299301
    Abstract: The invention relates generally crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one that is an inhibitor of Bruton's tyrosine kinase. In some aspects, the crystalline salts are single polymorphs.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 24, 2020
    Applicant: Genentech, Inc.
    Inventors: Chen MAO, Dawen KOU, Po-Chang CHIANG
  • Publication number: 20200246271
    Abstract: Improved oral dosage forms of methyl hydrogen fumarate and prodrugs thereof are disclosed. Methods of treating diseases such as multiple sclerosis and psoriasis using such dosage forms are also disclose.
    Type: Application
    Filed: April 20, 2020
    Publication date: August 6, 2020
    Inventors: Sami Karaborni, Sarina Grace Harris Ma, Chen Mao, Ching Wah Chong, Peter Robert Prinz Freed, Mesut Ciper, Stefanie Krenzlin, David J. Wustrow, Peter A. Virsik
  • Patent number: 10716760
    Abstract: Improved oral dosage forms of methyl hydrogen fumarate and prodrugs thereof are disclosed. Methods of treating diseases such as multiple sclerosis and psoriasis using such dosage forms are also disclose.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: July 21, 2020
    Assignee: Arbor Pharmaceuticals, LLC
    Inventors: Sami Karaborni, Sarina Grace Harris Ma, Chen Mao, Ching Wah Chong, Peter Robert Prinz Freed, Mesut Ciper, Stefanie Krenzlin, David J. Wustrow, Peter A. Virsik
  • Publication number: 20200000758
    Abstract: Methods of treating psoriasis with sustained release compression coated tablet dosage forms comprising certain MHF prodrugs are provided.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: Peter A. Virsik, Sami Karaborni, Laura Elizabeth Bauer, Chen Mao, Ching Wah Chong
  • Publication number: 20190177331
    Abstract: The invention relates generally crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one that is an inhibitor of Bruton's tyrosine kinase. In some aspects, the crystalline salts are single polymorphs.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 13, 2019
    Inventors: Chen Mao, Dawen Kou, Po-Chang Chiang
  • Patent number: 10246461
    Abstract: The invention relates generally to pharmaceutical tablet compositions comprising fumaric acid and the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one free base that is an inhibitor of Bruton's tyrosine kinase. The invention further relates to amorphous solid dispersions comprising at least one polymer and the Bruton's kinase inhibitor free base compound. The invention further relates to crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the Bruton's kinase inhibitor free base compound. In some aspects, the crystalline salts are single polymorphs.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: April 2, 2019
    Assignee: Genentech, Inc.
    Inventors: Chen Mao, Dawen Kou, Po-Chang Chiang
  • Patent number: 10221231
    Abstract: The present invention relates to fusion proteins for the expression of G-protein coupled receptor proteins (GPCR) with the fusion partners, as inserted fragments, from mammalian cells. The fusion partners are from a fragment of APJ protein (“the APJ protein fragment”) or a fragment with homology of more than 90% similarity to the APJ protein fragment; or a fragment of RGS16 protein (the “RGS16 protein fragment”) or a fragment with homology of more than 90% similarity to the RGS16 protein fragment; or the fragment of DNJ protein (the “DNJ protein fragment”) or a fragment with homology of more than 90% similarity to DNJ protein fragment. The fusion expression of GPCR with the above mentioned fusion partners can improve the protein yield and stability when purified from cells. Therefore, these fusion protein partners can be widely used for the study of GPCR proteins.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 5, 2019
    Assignee: VIVA BIOTECH (SHANGHAI) LTD.
    Inventors: Jianhua Cai, Jian Shen, Fan Jiang, Na Li, Wentao Wei, Xiuhong Zeng, Xiaoyan Su, Min Han, Delin Ren, Chen Mao
  • Patent number: 10106595
    Abstract: The present invention relates to fusion proteins for the expression of G-protein coupled receptor proteins (GPCR) with the fusion partners, as inserted fragments, from mammalian cells. The fusion partners are from a fragment of APJ protein (“the APJ protein fragment”) or a fragment with homology of more than 90% similarity to the APJ protein fragment; or a fragment of RGS16 protein (the “RGS16 protein fragment”) or a fragment with homology of more than 90% similarity to the RGS16 protein fragment; or the fragment of DNJ protein (the “DNJ protein fragment”) or a fragment with homology of more than 90% similarity to DNJ protein fragment. The fusion expression of GPCR with the above mentioned fusion partners can improve the protein yield and stability when purified from cells. Therefore, these fusion protein partners can be widely used for the study of GPCR proteins.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 23, 2018
    Assignee: VIVA BIOTECH (SHANGHAI) LTD.
    Inventors: Jianhua Cai, Jian Shen, Fan Jiang, Na Li, Wentao Wei, Xiuhong Zeng, Xiaoyan Su, Min Han, Delin Ren, Chen Mao
  • Publication number: 20180251462
    Abstract: The invention relates generally to pharmaceutical tablet compositions comprising fumaric acid and the compound (S)-2-(3?-(hydroxymethyl)-1-methyl-5-((5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydro-[3,4?-bipyridin]-2?-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one free base that is an inhibitor of Bruton's tyrosine kinase. The invention further relates to amorphous solid dispersions comprising at least one polymer and the Bruton's kinase inhibitor free base compound. The invention further relates to crystalline mesylate salts, crystalline chloride salts and crystalline sulfate salts of the Bruton's kinase inhibitor free base compound. In some aspects, the crystalline salts are single polymorphs.
    Type: Application
    Filed: February 27, 2017
    Publication date: September 6, 2018
    Inventors: Chen Mao, Dawen Kou, Po-Chang Chiang
  • Patent number: 9920022
    Abstract: Provided is a small molecule compound as represented by structural formula (I). The product of the present invention in various concentrations and dosages can achieve an obvious change in the growth period of hairs, promoting the growth of the hairs, thus exhibiting an obvious effect of promoting hair growth. In addition, changes in the weight of a mouse in each group are slow, indicating that the test compound does not cause weight loss in an animal.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: March 20, 2018
    Assignee: TECHNODERMA MEDICINES PTE LTD.
    Inventors: Zengquan Wang, Sheldon Cao, Chen Mao
  • Patent number: 9895336
    Abstract: Disclosed herein are crystalline forms of (N,N-Diethylcarbamoyl)methyl methyl (2E)but-2-ene-1,4-dioate, which is a prodrug of methyl hydrogen fumarate. Crystalline form 1, Crystalline form 2, Crystalline 3, and Crystalline form 4 are disclosed.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 20, 2018
    Assignee: XENOPORT, INC.
    Inventors: Chen Mao, Randall A. Scheuerman, Sami Karaborni
  • Publication number: 20170368014
    Abstract: Disclosed herein are crystalline forms of (N,N-Diethylcarbamoyl)methyl methyl (2E)but-2-ene-1,4-dioate, which is a prodrug of methyl hydrogen fumarate. Crystalline form 1, Crystalline form 2, Crystalline 3, and Crystalline form 4 are disclosed.
    Type: Application
    Filed: September 6, 2017
    Publication date: December 28, 2017
    Inventors: Chen Mao, Randall A. Scheuerman, Sami Karaborni