Patents by Inventor Wei Dang

Wei Dang 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).

  • Separator for oil well produced fluid, and separation device comprising the same
    Patent number: 9981206
    Abstract: A separator for an oil well produced fluid comprises a housing and a tube group arranged within the housing. The tube group includes a plurality of horizontal pipes in a layered arrangement along a vertical direction, and a plurality of vertical pipes which allows adjacent layers of the horizontal pipes to be in fluid communication with each other. The plurality of horizontal pipes shares an inlet pipe in communication with the outside of the housing, and each of the horizontal pipes has a respective outlet. The separator is configured in such a manner that the horizontal pipes in an upper layer, a middle layer, and a lower layer are respectively used as oil pipes, water pipes, and sediment pipes.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 29, 2018
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC EXPLORATION & PRODUCTION RESEARCH INSTITUTE
    Inventors: Wei Dang, Hui Huang, Changchao Hu, Lili Wang, Wenjie Tan, Zhiwei Tang
  • OPTIMIZED FC VARIANTS AND METHODS FOR THEIR GENERATION
    Publication number: 20180141997
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Application
    Filed: June 26, 2017
    Publication date: May 24, 2018
    Inventors: Gregory Alan Lazar, Arthur J. Chirino, Wei Dang, John R. Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • Optimized Fc variants and methods for their generation
    Patent number: 9714282
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: July 25, 2017
    Assignee: Xencor, Inc.
    Inventors: Gregory Alan Lazar, Arthur J. Chirino, Wei Dang, John R. Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • NOVEL IMMUNOGLOBULIN VARIANTS
    Publication number: 20170166655
    Abstract: The present invention relates to Fc variants with optimized Fc ligand binding properties, methods for their generation, Fc polypeptides comprising Fc variants with optimized Fc ligand binding properties, and methods for using same.
    Type: Application
    Filed: January 13, 2017
    Publication date: June 15, 2017
    Inventors: Gregory Alan Lazar, Bassil Dahiyat, Wei Dang, John Desjarlais, Sher Bahadur Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • Optimized Fc variants
    Patent number: 9663582
    Abstract: The present invention relates to Fc variants having decreased affinity for Fc?RIIb, methods for their generation, Fc polypeptides comprising optimized Fc variants, and methods for using optimized Fc variants.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: May 30, 2017
    Assignee: Xencor, Inc.
    Inventors: Gregory Lazar, Wei Dang, John Desjarlais, Sher Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • Optimized Fc variants
    Patent number: 9657106
    Abstract: The present invention relates to Fc variants having decreased affinity for Fc?RIIb, methods for their generation, Fc polypeptides comprising optimized Fc variants, and methods for using optimized Fc variants.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 23, 2017
    Assignee: Xencor, Inc.
    Inventors: Gregory Lazar, Wei Dang, John Desjarlais, Sher Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • OPTIMIZED Fc VARIANTS AND METHODS FOR THEIR GENERATION
    Publication number: 20160347837
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Inventors: Gregory Alan Lazar, Arthur J. Chirino, Wei Dang, John Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • OPTIMIZED Fc VARIANTS AND METHODS FOR THEIR GENERATION
    Publication number: 20160347825
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Inventors: Gregory Alan Lazar, Arthur J. Chirino, Wei Dang, John Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • OPTIMIZED FC VARIANTS
    Publication number: 20160340436
    Abstract: The present invention relates to Fc variants having decreased affinity for Fc?RIIb, methods for their generation, Fc polypeptides comprising optimized Fc variants, and methods for using optimized Fc variants.
    Type: Application
    Filed: July 8, 2014
    Publication date: November 24, 2016
    Inventors: Gregory Lazar, Wei Dang, John Desjarlais, Sher Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • SEPARATOR FOR OIL WELL PRODUCED FLUID, AND SEPARATION DEVICE COMPRISING THE SAME
    Publication number: 20160317950
    Abstract: A separator for an oil well produced fluid comprises a housing and a tube group arranged within the housing. The tube group includes a plurality of horizontal pipes in a layered arrangement along a vertical direction, and a plurality of vertical pipes which allows adjacent layers of the horizontal pipes to be in fluid communication with each other. The plurality of horizontal pipes shares an inlet pipe in communication with the outside of the housing, and each of the horizontal pipes has a respective outlet. The separator is configured in such a manner that the horizontal pipes in an upper layer, a middle layer, and a lower layer are respectively used as oil pipes, water pipes, and sediment pipes.
    Type: Application
    Filed: April 25, 2016
    Publication date: November 3, 2016
    Applicants: China Petroleum & Chemical Corporation, SINOPEC Exploration & Production Research Inst.
    Inventors: Wei DANG, Hui HUANG, Changchao HU, Lili WANG, Wenjie TAN, Zhiwei TANG
  • OPTIMIZED Fc VARIANTS AND METHODS FOR THEIR GENERATION
    Publication number: 20160318993
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 3, 2016
    Inventors: Gregory Alan Lazar, Arthur J. Chirino, Wei Dang, John Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • OPTIMIZED Fc VARIANTS
    Publication number: 20160304589
    Abstract: The present invention relates to Fc variants having decreased affinity for Fc?RIIb, methods for their generation, Fc polypeptides comprising optimized Fc variants, and methods for using optimized Fc variants.
    Type: Application
    Filed: October 6, 2014
    Publication date: October 20, 2016
    Inventors: Gregory LAZAR, Wei Dang, John Desjarlais, Sher Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • Multi-level sliding sleeve
    Patent number: 9366110
    Abstract: A multi-level sliding sleeve including an outer cylinder, an inner sliding sleeve, a combined ball socket, a guider, an expander, an upper gland, a lower gland, and a ball. The outer cylinder includes internal threads in an upper end and external threads in a lower end, and the outer cylinder including an external wall including a plurality of drainage holes along the peripheral direction. The inner sliding sleeve is mounted to an inner wall of the outer cylinder through shear pins. The inner sliding sleeve includes a plurality of square holes in the middle along the peripheral direction, each of which is equipped with a ball socket inside. The ball sockets combine together to form a combined ball socket. The combined ball socket is equipped with the guider in the upper end and the expander in the lower end.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 14, 2016
    Assignee: CNPC Bohai Drilling Engineering Company Limited
    Inventors: Qiang Feng, Jun Li, Fei Li, Yao Wang, Wei Dang, Hongjun Li, Zhiyong He
  • Optimized FC variants and methods for their generation
    Patent number: 9353187
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 31, 2016
    Assignee: Xencor, Inc.
    Inventors: Gregory Alan Lazar, Arthur J. Chirino, Wei Dang, John Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • Optimized Fc variants and methods for their generation
    Patent number: 9193798
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: November 24, 2015
    Assignee: Xencor, Inc.
    Inventors: Gregory Alan Lazar, Arthur Chirino, Wei Dang, John Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • OPTIMIZED Fc VARIANTS
    Publication number: 20150315284
    Abstract: The present invention relates to a variant Fc region comprising an amino acid substitution at position 238 of the Fc region as compared to a human parent Fc region, wherein the variant Fc region comprises a 238D substitution, wherein the variant Fc region binds Fc?RIIb with increased binding affinity compared to a human parent Fc region.
    Type: Application
    Filed: April 23, 2015
    Publication date: November 5, 2015
    Inventors: Gregory Alan Lazar, Wei Dang, John Desjarlais, Sher Bahadur Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • Fc Variants with Increased Affinity for FcyRIIc
    Publication number: 20150232567
    Abstract: The present invention relates to Fc variants having increased affinity for Fc?RIIc, methods for their generation, Fc polypeptides comprising optimized Fc variants, and methods for using optimized Fc variants.
    Type: Application
    Filed: December 19, 2014
    Publication date: August 20, 2015
    Inventors: GREGORY LAZAR, WEI DANG, JOHN DESJARLAIS, SHER BAHADUR KARKI, OMID VAFA, ROBERT HAYES
  • Optimized Fc variants
    Patent number: 9051373
    Abstract: The present invention relates to a variant Fc region comprising an amino acid substitution at position 238 of the Fc region as compared to a human parent Fc region, wherein the variant Fc region comprises a 238D substitution, wherein the variant Fc region binds Fc?RIIb with increased binding affinity compared to a human parent Fc region.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: June 9, 2015
    Assignee: Xencor, Inc.
    Inventors: Gregory Alan Lazar, Wei Dang, John Desjarlais, Sher Bahadur Karki, Omid Vafa, Robert Hayes, Jost Vielmetter
  • OPTIMIZED Fc VARIANTS AND METHODS FOR THEIR GENERATION
    Publication number: 20150079082
    Abstract: The present invention relates to optimized Fc variants, methods for their generation, and antibodies and Fc fusions comprising optimized Fc variants.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: Gregory Alan LAZAR, Arthur Chirino, Wei Dang, John Desjarlais, Stephen K. Doberstein, Robert J. Hayes, Sher Bahadur Karki, Omid Vafa
  • NOVEL IMMUNOGLOBULIN VARIANTS
    Publication number: 20150071948
    Abstract: The present invention relates to Fc variants with optimized Fc ligand binding properties, methods for their generation, Fc polypeptides comprising Fc variants with optimized Fc ligand binding properties, and methods for using same.
    Type: Application
    Filed: March 13, 2014
    Publication date: March 12, 2015
    Inventors: Gregory Alan Lazar, Bassil Dahiyat, Wei Dang, John Desjarlais, Sher Bahadur Karki, Omid Vafa, Robert Hayes, Jost Vielmetter