Patents by Inventor Christopher John Markworth

Christopher John Markworth 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: 9145407
    Abstract: The invention relates to new sulfonamide Nav1.7 inhibitors and pharmaceutically acceptable salts thereof, to their use in medicine, to compositions containing them, to processes for their preparation and to intermediates used in such processes. Nav 1.7 inhibitors are potentially useful in the treatment of a wide range of disorders, particularly pain.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 29, 2015
    Assignees: Pfizer Limited, Icagen, Inc.
    Inventors: Christopher John Markworth, Brian Edward Marron, David James Rawson, Robert Ian Storer, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Patent number: 8907101
    Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts, solvates or tautomers thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds, and the uses of such compounds, in particular for the treatment of pain.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: December 9, 2014
    Assignees: Pfizer Limited, Icagen, Inc.
    Inventors: Serge Beaudoin, Michael Christopher Laufersweiler, Christopher John Markworth, Brian Edward Marron, David Simon Millan, David James Rawson, Steven Michael Reister, Kosuke Sasaki, Robert Ian Storer, Paul Anthony Stupple, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Patent number: 8741934
    Abstract: The invention is directed to compounds of Formula I in which: R5, R6, B and Z are defined supra.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: June 3, 2014
    Assignees: Pfizer Limited, Icagen, Inc.
    Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
  • Publication number: 20130338111
    Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts, solvates or tautomers thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds, and the uses of such compounds, in particular for the treatment of pain.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicants: Icagen, Inc., Pfizer Limited
    Inventors: Serge Beaudoin, Michael Christopher Laufersweiler, Christopher John Markworth, Brian Edward Marron, David Simon Millan, David James Rawson, Steven Michael Reister, Kosuke Sasaki, Robert Ian Storer, Paul Anthony Stupple, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Patent number: 8541588
    Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts, solvates or tautomers thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds, and the uses of such compounds, in particular for the treatment of pain.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: September 24, 2013
    Assignees: Pfizer Limited, Icagen, Inc.
    Inventors: Serge Beaudoin, Michael Christopher Laufersweiler, Christopher John Markworth, Brian Edward Marron, David Simon Millan, David James Rawson, Steven Michael Reister, Kosuke Sasaki, Robert Ian Storer, Paul Anthony Stupple, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Publication number: 20130109667
    Abstract: The invention relates to new sulfonamide Nav1.7 inhibitors and pharmaceutically acceptable salts thereof, to their use in medicine, to compositions containing them, to processes for their preparation and to intermediates used in such processes. Nav 1.7 inhibitors are potentially useful in the treatment of a wide range of disorders, particularly pain.
    Type: Application
    Filed: June 28, 2011
    Publication date: May 2, 2013
    Applicants: Pfizer Limited, Icagen ,Inc.
    Inventors: Christopher John Markworth, Brian Edward Marron, David James Rawson, Robert Ian Storer, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Publication number: 20130072471
    Abstract: Compounds, compositions and methods are provided which are useful in the treatment of diseases through the inhibition of sodium ion flux through voltage-gated sodium channels. More particularly, the invention provides substituted aryl sulfonamides, compositions comprising these compounds, as well as methods of using these compounds or compositions in the treatment of central or peripheral nervous system disorders, particularly pain and chronic pain by blocking sodium channels associated with the onset or recurrence of the indicated conditions. The compounds, compositions and methods of the present invention are of particular use for treating neuropathic or inflammatory pain by the inhibition of ion flux through a voltage-gated sodium channel.
    Type: Application
    Filed: November 15, 2012
    Publication date: March 21, 2013
    Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
  • Patent number: 8357711
    Abstract: The invention is directed to compounds of the formula in which R5, R6 B and Z are defined supra.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: January 22, 2013
    Assignees: Pfizer Limited, Icagen, Inc.
    Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
  • Publication number: 20120149679
    Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts, solvates or tautomers thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds, and the uses of such compounds, in particular for the treatment of pain.
    Type: Application
    Filed: February 20, 2012
    Publication date: June 14, 2012
    Inventors: Serge Beaudoin, Michael Christopher Laufersweiler, Christopher John Markworth, Brian Edward Marron, David Simon Millan, David James Rawson, Steven Michael Reister, Kosuke Sasaki, Robert Ian Storer, Paul Anthony Stupple, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Patent number: 8153814
    Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts, solvates or tautomers thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds, and the uses of such compounds, in particular for the treatment of pain.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: April 10, 2012
    Assignees: Pfizer Limited, Icagen, Inc.
    Inventors: Serge Beaudoin, Michael Christopher Laufersweiler, Christopher John Markworth, Brian Edward Marron, David Simon Millan, David James Rawson, Steven Michael Reister, Kosuke Sasaki, Robert Ian Storer, Paul Anthony Stupple, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Patent number: 8124610
    Abstract: Compounds, compositions and methods are provided which are useful in the treatment of diseases through the inhibition of sodium ion flux through voltage-gated sodium channels. More particularly, the invention provides substituted sulfonamides, compositions comprising these compounds, as well as methods of using these compounds or compositions in the treatment of central or peripheral nervous system disorders, particularly pain and chronic pain by blocking sodium channels associated with the onset or recurrence of the indicated conditions. The compounds, compositions and methods of the present invention are of particular use for treating neuropathic or inflammatory pain by the inhibition of ion flux through a voltage-gated sodium channel.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: February 28, 2012
    Assignee: Icagen Inc.
    Inventors: Alan Bradley Fulp, Matthew Scott Johnson, Christopher John Markworth, Brian Edward Marron, Darrick Conway Seconi, Christopher William West, Xiaodong Wang, Shulan Zhou
  • Publication number: 20100197655
    Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts, solvates or tautomers thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds, and the uses of such compounds, in particular for the treatment of pain.
    Type: Application
    Filed: January 12, 2010
    Publication date: August 5, 2010
    Inventors: Serge Beaudoin, Michael Christopher Laufersweiler, Christopher John Markworth, Brian Edward Marron, David Simon Millan, David James Rawson, Steven Michael Reister, Kosuke Sasaki, Robert Ian Storer, Paul Anthony Stupple, Nigel Alan Swain, Christopher William West, Shulan Zhou
  • Publication number: 20090143358
    Abstract: Compounds, compositions and methods are provided which are useful in the treatment of diseases through the inhibition of sodium ion flux through voltage-gated sodium channels. More particularly, the invention provides substituted aryl sulfonamides, compositions comprising these compounds, as well as methods of using these compounds or compositions in the treatment of central or peripheral nervous system disorders, particularly pain and chronic pain by blocking sodium channels associated with the onset or recurrence of the indicated conditions. The compounds, compositions and methods of the present invention are of particular use for treating neuropathic or inflammatory pain by the inhibition of ion flux through a voltage-gated sodium channel.
    Type: Application
    Filed: March 20, 2008
    Publication date: June 4, 2009
    Applicants: ICAgen, Inc., Pfizer Limited
    Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
  • Publication number: 20090023740
    Abstract: Compounds, compositions and methods are provided which are useful in the treatment of diseases through the inhibition of sodium ion flux through voltage-gated sodium channels. More particularly, the invention provides substituted sulfonamides, compositions comprising these compounds, as well as methods of using these compounds or compositions in the treatment of central or peripheral nervous system disorders, particularly pain and chronic pain by blocking sodium channels associated with the onset or recurrence of the indicated conditions. The compounds, compositions and methods of the present invention are of particular use for treating neuropathic or inflammatory pain by the inhibition of ion flux through a voltage-gated sodium channel.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 22, 2009
    Applicant: Icagen
    Inventors: Alan Bradley Fulp, Matthew Scott Johnson, Christopher John Markworth, Brian Edward Marron, Darrick Conway Seconi, Christopher William West, Xiaodong Wang, Shulan Zhou