Patents by Inventor Douglas James Critcher

Douglas James Critcher 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).

  • Publication number: 20210387989
    Abstract: The present invention discloses a novel p-toluenesulfonic acid salt and a crystalline polymorphic Form 1 of said salt of 1-((2S,5R)-5-((7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one, pharmaceutical composition containing the same, as well as preparations and uses thereof. The present invention also discloses a novel phosphoric acid salt of 1-((2S,5R)-5-((7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)-2-methylpiperidin-1-yl)prop-2-en-1-one, pharmaceutical composition containing the same, as well as preparations and uses thereof.
    Type: Application
    Filed: October 21, 2019
    Publication date: December 16, 2021
    Applicant: Pfizer Inc.
    Inventors: Brian Matthew SAMAS, Yong TAO, Douglas James Critcher, David Sydney Bernard Daniels, Kevin Paul Girard, Gregory Scott Goeken, Peter Robert Rose
  • Patent number: 7968584
    Abstract: This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 28, 2011
    Assignees: Pfizer Inc., Pfizer Products Inc.
    Inventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
  • Patent number: 7803832
    Abstract: The invention relates to a sulfonamide compound of formula (I) or a pharmaceutically, veterinarily or agriculturally acceptable salt or solvate thereof, where the groups R1-R5 are described in the description, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: September 28, 2010
    Assignees: Pfizer Inc., Pfizer Products Inc.
    Inventors: Douglas James Critcher, Nigel Derek Arthur Walshe, Christelle Lauret
  • Patent number: 7687533
    Abstract: The invention relates to a sulfonamide compound of formula (I) or a pharmaceutically, veterinarily or agriculturally acceptable salt or solvate thereof, where the groups R1-R5 are described in the description, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: March 30, 2010
    Assignees: Pfizer Inc., Pfizer Products Inc.
    Inventors: Douglas James Critcher, Nigel Derek Arthur Walshe, Christelle Lauret
  • Publication number: 20100075956
    Abstract: The invention relates to a sulfonamide compound of formula (I) or a pharmaceutically, veterinarily or agriculturally acceptable salt or solvate thereof, where the groups R1-R5 are described in the description, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Application
    Filed: December 1, 2009
    Publication date: March 25, 2010
    Applicants: PFIZER INC., PFIZER PRODUCTS INC.
    Inventors: Douglas James Critcher, Nigel Derek Arthur Walshe, Christelle Lauret
  • Patent number: 7645786
    Abstract: This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: January 12, 2010
    Assignee: Pfizer Inc.
    Inventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
  • Publication number: 20090186924
    Abstract: This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
    Type: Application
    Filed: March 19, 2009
    Publication date: July 23, 2009
    Applicants: Pfizer Inc., Pfizer Products Inc..
    Inventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
  • Patent number: 7538134
    Abstract: This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: May 26, 2009
    Assignees: Pfizer Inc., Pfizer Products Inc.
    Inventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
  • Publication number: 20080261940
    Abstract: The invention relates to a sulfonamide compound of formula (I) or a pharmaceutically, veterinarily or agriculturally acceptable salt or solvate thereof, where the groups R1-R5 are described in the description, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Application
    Filed: March 7, 2005
    Publication date: October 23, 2008
    Inventors: Douglas James Critcher, Nigel Derek Arthur Walshe, Christelle Lauret
  • Publication number: 20080176865
    Abstract: This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
    Type: Application
    Filed: December 13, 2007
    Publication date: July 24, 2008
    Applicant: PFIZER LIMITED
    Inventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
  • Publication number: 20080146643
    Abstract: Compounds of formula (I) are used in combination with a second antiparasitic agent for the treatment of parasitic infestations in a host animal.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 19, 2008
    Applicant: PFIZER LIMITED
    Inventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
  • Patent number: 6750231
    Abstract: There is provided a compound of formula I, wherein Het1, R1, R2, R3, X and n have meanings given in the description, which are useful in the prophylaxis and in the treatment of diseases mediated by opiate receptors, such as pruritus.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: June 15, 2004
    Assignee: Pfizer Inc
    Inventors: Stephen Paul Gibson, Ivan Tommasini, Kimberley Verrier, Christopher James Dutton, David Morris Gethin, Douglas James Critcher, Richard Edward Armer
  • Patent number: 6670362
    Abstract: Compounds of formula (I), pharmaceutical formulations thereof and the use of such compounds for treating endothelin mediated diseases or conditions are described herein. The compounds of the present invention have affinity for endothelin receptors, are selective for ETA over ETB, and thus are useful in the treatment of conditions mediated by endothelin.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: December 30, 2003
    Assignee: Pfizer Inc.
    Inventors: Bernard Joseph Banks, Anthony Logan Chubb, Douglas James Critcher, James John Eshelby, Darren John Schulz
  • Publication number: 20030207876
    Abstract: Compounds of formula I, 1
    Type: Application
    Filed: April 8, 2002
    Publication date: November 6, 2003
    Inventors: Bernard Joseph Banks, Douglas James Critcher, Ashley Edward Fenwick, David Morris Gethin, Stephen Paul Gibson
  • Publication number: 20030004340
    Abstract: There is provided a compound of formula I, 1
    Type: Application
    Filed: March 19, 2002
    Publication date: January 2, 2003
    Inventors: Stephen Paul Gibson, Ivan Tommasini, Kimberley Verrier, Christopher James Dutton, David Morris Gethin, Douglas James Critcher, Richard Edward Armer
  • Publication number: 20020061889
    Abstract: Compounds of formula (I), pharmaceutical formulations thereof and the use of such compounds for treating endothelin mediated diseases or conditions are described herein.
    Type: Application
    Filed: September 12, 2001
    Publication date: May 23, 2002
    Inventors: Bernard Joseph Banks, Anthony Logan Chubb, Douglas James Critcher, James John Eshelby, Darren John Schulz
  • Publication number: 20020025948
    Abstract: Compounds of formula I, 1
    Type: Application
    Filed: June 18, 2001
    Publication date: February 28, 2002
    Inventors: Bernard Joseph Banks, Douglas James Critcher, Ashley Edward Fenwick, David Morris Gethin, Stephen Paul Gibson