Patents by Inventor Shengfeng Li

Shengfeng Li 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).

  • Patent number: 10977230
    Abstract: The present disclosure discloses a data information processing method. A storage space corresponding to an organization is disposed in a data storage system. A data processing request type, the storage partition in which a project sending a data processing request is located, and the storage partition of the target data information corresponding to the data processing request are acquired when the data processing request is received. Subsequently, a processing strategy matching the storage partitions and the type is acquired. Finally, the target data information is processed according to the processing strategy and the data processing request. Thus, the isolation and rights control of different data in the same storage space can be achieved, and the security and mobility of data can be ensured.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 13, 2021
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Shengfeng Li, Panfeng Yuan, Tingliang Chen, Ji Li
  • Publication number: 20210079081
    Abstract: The present invention relates to a full length humanized monoclonal antibody that can specifically bind to VEGF. The antibody can inhibit binding of VEGF to VEGFR-1 and VEGFR-2, thereby inhibiting signaling of VEGF. The antibody has a strong affinity for VEGF, has a long half-life, and is highly safe after vitreous injection. The antibody of the invention may be effective in treating diseases associated with VEGF overexpression, particularly diseases associated with abnormal angiogenesis caused by VEGF overexpression.
    Type: Application
    Filed: January 4, 2019
    Publication date: March 18, 2021
    Applicant: BIO-THERA SOLUTIONS, LTD.
    Inventors: Xiaoyun Wu, Chenchao Xu, Zhigang Wang, Shengfeng Li
  • Publication number: 20190330536
    Abstract: Provided is a conversion process for an organic oil, relating to the field of biomass utilization, energy and chemical industry. The conversion process is carried out in presence of an aqueous slurry and a catalyst selected from the group consisting of an iron oxide compound, a waste agent resulting from use of an iron oxide compound as desulfurizer, and a regeneration product of the waste agent, under a controlled molar ratio of iron element to sulfur element. It is found that free radical condensation polymerization of organic oil during cracking process can be blocked effectively by using carbonylation, and hydrogenation is achieved with active hydrogen produced from the conversion of CO and water. In the conversion process, organic material, especially biomass solid, can be directly converted without dehydration, and water can be additionally added to the biomass liquid or the mineral oil.
    Type: Application
    Filed: May 30, 2019
    Publication date: October 31, 2019
    Inventors: Ke LIN, Lixin GUO, Yongjun CUI, Shengfeng LI, Dongmei CUI
  • Publication number: 20190048095
    Abstract: The present invention generally relates to compounds comprising antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to TROP2 (TACSTD2). The present invention also relates to methods of using such TROP2-binding molecules for diagnosing and treating diseases, such as malignancies.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 14, 2019
    Applicant: BIO-THERA SOLUTIONS, LTD.
    Inventors: Weijia TANG, Xiaoyang HUANG, Jin-Chen YU, Ziqiang OU, Xian PENG, Yili YANG, Shengfeng LI, Chao QIN
  • Publication number: 20180300360
    Abstract: The present disclosure discloses a data information processing method. A storage space corresponding to an organization is disposed in a data storage system. A data processing request type, the storage partition in which a project sending a data processing request is located, and the storage partition of the target data information corresponding to the data processing request are acquired when the data processing request is received. Subsequently, a processing strategy matching the storage partitions and the type is acquired. Finally, the target data information is processed according to the processing strategy and the data processing request. Thus, the isolation and rights control of different data in the same storage space can be achieved, and the security and mobility of data can be ensured.
    Type: Application
    Filed: June 22, 2018
    Publication date: October 18, 2018
    Inventors: Shengfeng LI, Panfeng YUAN, Tingliang CHEN, Ji LI
  • Publication number: 20170258935
    Abstract: Disclosed herein are anti-ERB B2/NEU antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods relating to the preparation and uses of such drug conjugates to treat ERB B2/NEU positive cells in cancers are provided.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Applicant: Bio-Thera Solutions, Ltd., Co.
    Inventors: Weijia Tang, Shengfeng Li, Jin-Chen Yu, Xiaobin Deng
  • Patent number: 9737616
    Abstract: Disclosed herein are anti-ERB B2/NEU antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods relating to the preparation and uses of such drug conjugates to treat ERB B2/NEU positive cells in cancers are provided.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: August 22, 2017
    Assignee: Bio-Thera Solutions, Ltd., Co.
    Inventors: Weijia Tang, Shengfeng Li, Jin-Chen Yu, Xiaobin Deng
  • Patent number: 9567403
    Abstract: Provided are bispecific antibodies having a full-size antibody portion with two light chains and two heavy chains, wherein the two heavy chains each is fused to a single-chain variable fragment (scFv) portion. In certain embodiments, the full-size antibody has specificity to EGFR and the scFv has specificity to VEGF.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: February 14, 2017
    Assignee: Bio-Thera Solutions, Ltd.
    Inventors: Xiaoyun Wu, Shengfeng Li, Chenchao Xu
  • Publication number: 20160200737
    Abstract: Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.
    Type: Application
    Filed: March 28, 2016
    Publication date: July 14, 2016
    Inventors: Shengfeng LI, Xiaobin Deng, Songnuan Tan, Weijia Tang, Chao Qin
  • Patent number: 9345786
    Abstract: Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 24, 2016
    Assignee: Bio-Thera Solutions, Ltd., Co.
    Inventors: Shengfeng Li, Xiaobin Deng, Songnuan Tan, Weijia Tang, Chao Qin
  • Patent number: 9314536
    Abstract: Disclosed herein are anti-EGFR antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods related to the preparation and uses of such antibody drug conjugates to treat EGFR positive cells in cancers are provided.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 19, 2016
    Assignee: Bio-Thera Solutions, Ltd., Co.
    Inventors: Chao Qin, Shengfeng Li
  • Publication number: 20150320881
    Abstract: Disclosed herein are anti-ERB B2/NEU antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods relating to the preparation and uses of such drug conjugates to treat ERB B2/NEU positive cells in cancers are provided.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 12, 2015
    Applicant: BIO-THERA SOLUTIONS, LTD., CO.
    Inventors: Weijia Tang, Shengfeng Li, Jin-Chen Yu, Xiaobin Deng
  • Publication number: 20150151003
    Abstract: Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.
    Type: Application
    Filed: October 30, 2014
    Publication date: June 4, 2015
    Inventors: Shengfeng Li, Xiaobin Deng, Songnuan Tan, Weijia Tang, Chao Qin
  • Publication number: 20150044216
    Abstract: Provided are bispecific antibodies having a full-size antibody portion with two light chains and two heavy chains, wherein the two heavy chains each is fused to a single-chain variable fragment (scFv) portion. In certain embodiments, the full-size antibody has specificity to EGFR and the scFv has specificity to VEGF.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 12, 2015
    Inventors: Xiaoyun Wu, Shengfeng Li, Chenchao Xu
  • Publication number: 20140178411
    Abstract: Disclosed herein are anti-CD20 antibody conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods related to the preparation and uses of such antibody drug conjugates to treat CD20 positive cells in cancers are provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 26, 2014
    Applicant: BIO-THERA SOLUTIONS, LTD., CO.
    Inventors: Chao Qin, Shengfeng Li
  • Publication number: 20140178412
    Abstract: Disclosed herein are anti-EGFR antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods related to the preparation and uses of such antibody drug conjugates to treat EGFR positive cells in cancers are provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 26, 2014
    Inventors: Chao Qin, Shengfeng Li
  • Publication number: 20140178415
    Abstract: Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 26, 2014
    Inventors: Shengfeng Li, Xiaobin Deng, Songnuan Tan, Weijia Tang, Chao Qin
  • Patent number: 7498410
    Abstract: The present invention provides improved tPA variants having significantly reduced susceptibility to inhibition and increased affinity for platelet integrin as compared with the wild-type tPA. The present invention also provides compositions comprising the tPA variants and polynucleotides, vectors, and host cells for producing the same as well as methods of using these tPA variants to treat disease conditions, e.g., thrombotic disorders.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: March 3, 2009
    Assignee: Humab Solutions, Inc.
    Inventor: Shengfeng Li
  • Patent number: 7429652
    Abstract: The present invention provides a technique for specific assembly of monomeric polypeptides to form a heteromultimer. This technique is particularly useful for generating a genetically diverse repertoire of heteromultimers such as antigen-binding units. The invention also provides both non-single-chain and single-chain antigen-binding units that are assembled by the technique described herein. The present invention also provides recombinant polynucleotides, vectors, host cells, and kits for producing the subject antigen-binding units. Further provided by the invention are methods of using the subject antigen-binding units.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: September 30, 2008
    Assignee: Abmaxis, Inc.
    Inventors: Caili Wang, Pingyu Zhong, Shengjiang Liu, Peizhi Luo, Shengfeng Li, Xinwei Wang
  • Publication number: 20070243541
    Abstract: The present invention provides non-single-chain antigen-binding units that is stabilized by leucine zipper sequences. The experimental design is particularly useful for generating and screening for Nsc Abus that remain the binding capabilities to their respective antigens within a cell. The present invention also provides recombinant polynucleotides, host cells and kits comprising the vectors. Further provided by the invention are methods of using the subject vectors.
    Type: Application
    Filed: November 15, 2006
    Publication date: October 18, 2007
    Inventor: Shengfeng Li