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).
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Patent number: 9145407Abstract: 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: GrantFiled: June 28, 2011Date of Patent: September 29, 2015Assignees: 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
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Patent number: 8907101Abstract: 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: GrantFiled: August 16, 2013Date of Patent: December 9, 2014Assignees: 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
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Patent number: 8741934Abstract: The invention is directed to compounds of Formula I in which: R5, R6, B and Z are defined supra.Type: GrantFiled: November 15, 2012Date of Patent: June 3, 2014Assignees: Pfizer Limited, Icagen, Inc.Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
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Publication number: 20130338111Abstract: 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: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicants: Icagen, Inc., Pfizer LimitedInventors: 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
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Patent number: 8541588Abstract: 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: GrantFiled: February 20, 2012Date of Patent: September 24, 2013Assignees: 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
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Publication number: 20130109667Abstract: 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: ApplicationFiled: June 28, 2011Publication date: May 2, 2013Applicants: 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
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Publication number: 20130072471Abstract: 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: ApplicationFiled: November 15, 2012Publication date: March 21, 2013Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
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Patent number: 8357711Abstract: The invention is directed to compounds of the formula in which R5, R6 B and Z are defined supra.Type: GrantFiled: March 20, 2008Date of Patent: January 22, 2013Assignees: Pfizer Limited, Icagen, Inc.Inventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
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Publication number: 20120149679Abstract: 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: ApplicationFiled: February 20, 2012Publication date: June 14, 2012Inventors: 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
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Patent number: 8153814Abstract: 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: GrantFiled: January 12, 2010Date of Patent: April 10, 2012Assignees: 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
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Patent number: 8124610Abstract: 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: GrantFiled: July 14, 2008Date of Patent: February 28, 2012Assignee: 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
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Publication number: 20100197655Abstract: 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: ApplicationFiled: January 12, 2010Publication date: August 5, 2010Inventors: 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
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Publication number: 20090143358Abstract: 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: ApplicationFiled: March 20, 2008Publication date: June 4, 2009Applicants: ICAgen, Inc., Pfizer LimitedInventors: Brian Edward Marron, Paul Christopher Fritch, Christopher John Markworth, Andrew Thomas Maynard, Nigel Alan Swain
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Publication number: 20090023740Abstract: 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: ApplicationFiled: July 14, 2008Publication date: January 22, 2009Applicant: IcagenInventors: Alan Bradley Fulp, Matthew Scott Johnson, Christopher John Markworth, Brian Edward Marron, Darrick Conway Seconi, Christopher William West, Xiaodong Wang, Shulan Zhou