Patents by Inventor James J. Campbell

James J. Campbell 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: 11986466
    Abstract: The present disclosure provides, inter alia, methods of treating a solid-tumor by administering an effective amount of a Chemokine Receptor 2 (CCR2) antagonist. Also provided herein are methods of reducing the number of macrophages in a solid tumor microenvironment, said method comprising administering effective amount of a Chemokine Receptor 2 (CCR2) antagonist. In an additional aspect, the current disclosure further provides methods of increasing the number CD8+ T cells in a solid tumor microenvironment, said method comprising administering effective amount of a Chemokine Receptor 2 (CCR2) antagonist.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 21, 2024
    Assignee: CHEMOCENTRYX, INC.
    Inventors: James J. Campbell, Rajinder Singh, Samuel Hwang, Xuesong Wu
  • Patent number: 11684606
    Abstract: The present disclosure provides, inter alia, methods of treating generalized pustular psoriasis (GPP) by administering an effective amount of a Chemokine Receptor 6 (CCR6) antagonist and/or a C-X-C motif chemokine receptor 2 (CXCR2) antagonist. Also provided herein are methods of modulating dysregulated IL-36 signaling in a subject in need thereof and methods of reducing neutrophil, inflammatory dendritic cell (iDC), and/or CD4 T cell accumulation in a subject in need thereof, said methods, include dministering an effective amount of a Chemokine Receptor 6 (CCR6) antagonist and/or a C-X-C motif chemokine receptor 2 (CXCR2) antagonist.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: June 27, 2023
    Assignee: CHEMOCENTRYX, INC.
    Inventors: James J. Campbell, Karen Ebsworth, Antoni Krasinski, Venkat Reddy Mali, Jeffrey McMahon, Rajinder Singh, Ju Yang, Chao Yu, Penglie Zhang
  • Patent number: 11464786
    Abstract: Provided herein are methods of treating cancer in an individual in need thereof, the methods comprising administering to the individual a CXCR7 inhibitor. In some embodiments, additional therapeutic agents are used. Also provided herein are methods of preventing precancerous cells expressing FRS2? from developing into cancer, the method comprising administering to an individual having precancerous cells expressing FRS2? a CXCR7 inhibitor. In some embodiments, additional therapeutic agents are used.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: October 11, 2022
    Assignee: ChemoCentryx, Inc.
    Inventors: Noriko Gotoh, James J. Campbell
  • Patent number: 11304952
    Abstract: The present disclosure is drawn to the combination therapy of a Chemokine Receptor 2 (CCR2) antagonist and a PD-1 and/or PD-L1 inhibitor in the treatment of cancer.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: April 19, 2022
    Assignee: ChemoCentryx, Inc.
    Inventors: James J. Campbell, Zhenhua Miao, Thomas J. Schall, Israel Charo, Shijie Li, Christine Marie Janson, Rajinder Singh, Karen Ebsworth
  • Patent number: 11207294
    Abstract: The present disclosure provides, inter alia, methods of treating generalized pustular psoriasis (GPP) by administering an effective amount of a Chemokine Receptor 6 (CCR6) antagonist and/or a C—X—C motif chemokine receptor 2 (CXCR2) antagonist. Also provided herein are methods of modulating dysregulated IL-36 signaling in a subject in need thereof and methods of reducing neutrophil, inflammatory dendritic cell (iDC), and/or CD4 T cell accumulation in a subject in need thereof, said methods, include administering an effective amount of a Chemokine Receptor 6 (CCR6) antagonist and/or a C—X—C motif chemokine receptor 2 (CXCR2) antagonist.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: December 28, 2021
    Assignee: ChemoCentryx, Inc.
    Inventors: James J. Campbell, Karen Ebsworth, Antoni Krasinski, Venkat Reddy Mali, Jeffrey McMahon, Rajinder Singh, Ju Yang, Chao Yu, Penglie Zhang
  • Patent number: 11154556
    Abstract: The present disclosure provides, inter alia, methods of treating a solid-tumor by administering an effective amount of a Chemokine Receptor 2 (CCR2) antagonist. Also provided herein are methods of reducing the number of macrophages in a solid tumor microenvironment, said method comprising administering effective amount of a Chemokine Receptor 2 (CCR2) antagonist. In an additional aspect, the current disclosure further provides methods of increasing the number CD8+ T cells in a solid tumor microenvironment, said method comprising administering effective amount of a Chemokine Receptor 2 (CCR2) antagonist.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: October 26, 2021
    Assignees: ChemoCentryx, Inc., The Regents of the University of California
    Inventors: James J. Campbell, Rajinder Singh, Samuel Hwang, Xuesong Wu
  • Patent number: 11020394
    Abstract: Provided herein are compositions, methods and kits for treating inflammatory bowel disease (IBD) such as Crohn's disease and ulcerative colitis in a mammal in need thereof. The method include administering to a subject with IBD a combination therapy containing a therapeutically effective amount of a chemokine receptor 9 (CCR9) inhibitor compound and a therapeutically effective amount of an anti-?4?7 integrin antibody such as vedolizumab. Also provided herein is a kit containing the CCR9 inhibitor compound and anti-?4?7 integrin antibody.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: June 1, 2021
    Assignee: ChemoCentryx, Inc.
    Inventors: Yibin Zeng, Penglie Zhang, Thomas Schall, Israel Charo, James J. Campbell
  • Patent number: 10792360
    Abstract: Provided herein are compositions, methods and kits for treating inflammatory bowel disease (IBD) such as Crohn's disease and ulcerative colitis in a mammal in need thereof. The method include administering to a subject with IBD a combination therapy containing a therapeutically effective amount of a chemokine receptor 9 (CCR9) inhibitor compound and a therapeutically effective amount of an anti-TNF? antibody. Also provided herein is a kit containing the CCR9 inhibitor compound and anti-TNF? antibody.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: October 6, 2020
    Assignee: ChemoCentryx, Inc.
    Inventors: Thomas Schall, James J. Campbell
  • Patent number: 9787210
    Abstract: Precharging systems and methods are presented for precharging a DC bus circuit in a power conversion system, in which precharging current is connected through a precharging resistance coupled between only a single AC input line and the DC bus circuit when the DC bus voltage is less than a non-zero threshold, and a controller individually activates controllable rectifier switching devices when the DC bus voltages greater than or equal to the threshold using DC gating or pulse width modulation to selectively provide a bypass path around the precharging resistance for normal load currents in the power conversion system.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: October 10, 2017
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Yogesh P. Patel, Rangarajan Tallam, Brian P. Brown, Jiangang Hu, James J. Campbell
  • Publication number: 20160204709
    Abstract: Precharging systems and methods are presented for precharging a DC bus circuit in a power conversion system, in which precharging current is connected through a precharging resistance coupled between only a single AC input line and the DC bus circuit when the DC bus voltage is less than a non-zero threshold, and a controller individually activates controllable rectifier switching devices when the DC bus voltages greater than or equal to the threshold using DC gating or pulse width modulation to selectively provide a bypass path around the precharging resistance for normal load currents in the power conversion system.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 14, 2016
    Applicant: Rockwell Automation Technologies, Inc.
    Inventors: Yogesh P. Patel, Rangarajan Tallam, Brian P. Brown, Jiangang Hu, James J. Campbell
  • Patent number: 6881406
    Abstract: Methods are provided to specifically modulate the trafficking of systemic memory T cells, particularly CD4+ T cells, without affecting naive T cells or intestinal memory T cells. It is shown that systemic memory T cells, which are characterized as CD45Ra?, and integrin ?4?7?, express high levels of CCR4. Ligands of CCR4, such as TARC or MDC, act as an adhesion trigger, wherein upon CCR4 binding, these cells undergo integrin-dependent arrest to the appropriate vascular receptor(s). This arrest acts to localize the cells at the target site. The methods of the invention manipulate this triggering, and CCR4 mediated chemotaxis, to affect the localization of T cells in targeted tissues. In an alternative embodiment, the agent is an antagonist that blocks CCR4 biological activity. An advantage of the invention is the selectivity for systemic memory T cells, without affecting native T cells or intestinal memory T cells.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: April 19, 2005
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Millennium Pharmaceuticals, Inc.
    Inventors: Eugene C. Butcher, James J. Campbell, Lijun Wu, James B. Rottman
  • Publication number: 20020019341
    Abstract: Methods are provided to specifically modulate the trafficking of systemic memory T cells, particularly CD4+ T cells, without affecting naive T cells or intestinal memory T cells. It is shown that systemic memory T cells, which are characterized as CD45Ra31 , and integrin &agr;4&bgr;731 , express high levels of CCR4. Ligands of CCR4, such as TARC or MDC, act as an adhesion trigger, wherein upon CCR4 binding, these cells undergo integrin-dependent arrest to the appropriate vascular receptor(s). This arrest acts to localize the cells at the target site. The methods of the invention manipulate this triggering, and CCR4 mediated chemotaxis, to affect the localization of T cells in targeted tissues. In one embodiment of the invention, the active agent is a CCR4 agonist, that acts to enhance T cell localization. In an alternative embodiment, the agent is an antagonist that blocks CCR4 biological activity.
    Type: Application
    Filed: April 17, 2001
    Publication date: February 14, 2002
    Inventors: Eugene C. Butcher, James J. Campbell, Lijun Wu, James B. Rottman
  • Patent number: 6245332
    Abstract: Methods are provided to specifically modulate the trafficking of systemic memory T cells, particularly CD4+ T cells, without affecting naive T cells or intestinal memory T cells. It is shown that systemic memory T cells, which are characterized as CD45Ra−, and integrin &agr;4&bgr;7−, express high levels of CCR4. Ligands of CCR4, such as TARC or MDC, act as an adhesion trigger, wherein upon CCR4 binding, these cells undergo integrin-dependent arrest to the appropriate vascular receptor(s). This arrest acts to localize the cells at the target site. The methods of the invention manipulate this triggering, and CCR4 mediated chemotaxis, to affect the localization of T cells in targeted tissues. In one embodiment of the invention, the active agent is a CCR4 agonist, that acts to enhance T cell localization. In an alternative embodiment, the agent is an antagonist that blocks CCR4 biological activity.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: June 12, 2001
    Assignees: The Board of Trustees of the Leland Stanford Junior University, LeukoSite, Inc.
    Inventors: Eugene C. Butcher, James J. Campbell, Lijun Wu, James B. Rottman
  • Patent number: 4246583
    Abstract: A rectangular waveguide housing and a waveguide radiator have coaxial cavities that are contiguous. A pair of perpendicular walls intersect substantially on the axis of the housing to form therein four similar rectangular subwaveguides that may be excited to propagate electromagnetic waves in a TE.sub.10 mode. The walls have edges that are in the boundary between the contiguous cavities. A pair of intersecting tabs extend from the edges into the radiator. Additionally, a protrusion extends within the radiator from the intersection of the tabs. The polarities of the waves in the subwaveguides are selected to cause an electromagnetic wave to propagate through the radiator in either of two orthogonal difference modes or a sum mode that has desired beam shaping properties. The protrusion causes one of the difference modes to have a desired polarization.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: January 20, 1981
    Assignee: RCA Corporation
    Inventors: Charles E. Profera, James J. Campbell