Patents Assigned to Pfizer Limited
  • Patent number: 7608604
    Abstract: The present invention relates to compounds of the formula (I) or a tautomer or prodrug thereof, or a pharmaceutically acceptable salt of said compound, tautomer or prodrug, wherein: R1, R2, R3, R4 and R5 are each independently selected from H, halo, CN, CF3 and CONH2; compositions containing such compounds and the uses of such compounds as antiparasitic agents.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: October 27, 2009
    Assignee: Pfizer Limited
    Inventors: Stuart Nicholas Comlay, Joanne Clare Hannam, William Howson, Christelle Lauret, Yogesh Anil Sabnis
  • Patent number: 7592362
    Abstract: This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: September 22, 2009
    Assignee: Pfizer Limited
    Inventors: Nathan Anthony Logan Chubb, Mark Roger Cox, Jerome Sebastien Dauvergne, Richard Andrew Ewin, Christelle Lauret
  • Patent number: 7547718
    Abstract: This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: June 16, 2009
    Assignee: Pfizer Limited
    Inventors: Nathan Anthony Logan Chubb, Mark Roger Cox, Jerome Sebastien Dauvergne, Richard Andrew Ewin, Christelle Lauret
  • Patent number: 7544706
    Abstract: This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: June 9, 2009
    Assignee: Pfizer Limited
    Inventors: Nathan Anthony Logan Chubb, Mark Roger Cox, Jerome Sebastien Dauvergne, Richard Andrew Ewin, Christelle Lauret
  • 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
  • Patent number: 7514464
    Abstract: This invention relates to a combination product comprising a compound of formula I wherein X, R1, R2, R3, R4, R5, R6, R7 and R9 are as described herein, and one or more further biologically active compounds as described herein, particularly anti-parasitic agents.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: April 7, 2009
    Assignee: Pfizer Limited
    Inventors: Denis Billen, Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe
  • Publication number: 20080267942
    Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof are agonists at the beta-2 adrenoceptor. They are useful as feed additives for livestock animals.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 30, 2008
    Applicant: Pfizer Limited
    Inventors: Jessica Boyle, Ashley Edward Fenwick, David Morris Gethin, Catherine Frances McCusker
  • Patent number: 7435753
    Abstract: This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which there is at least one fluorine attached to the cyclopropyl ring, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: October 14, 2008
    Assignee: Pfizer Limited
    Inventors: Denis Billen, Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe
  • Publication number: 20080200540
    Abstract: The present invention relates to compounds of the formula (I) and pharmaceutically acceptable salts thereof, compositions containing such compounds and the uses of such compounds as antiparasitic agents.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 21, 2008
    Applicant: PFIZER LIMITED
    Inventors: Stephen Paul Gibson, Christelle Lauret
  • Publication number: 20080194694
    Abstract: The present invention relates to compounds of the formula (I) or a tautomer or prodrug thereof, or a pharmaceutically acceptable salt of said compound, tautomer or prodrug, wherein: R1, R2, R3, R4 and R5 are each independently selected from H, halo, CN, CF3 and CONH2; compositions containing such compounds and the uses of such compounds as antiparasitic agents.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 14, 2008
    Applicant: PFIZER LIMITED
    Inventors: Stuart Nicholas Comlay, Joanne Clare Hannam, William Howson, Christelle Lauret, Yogesh Anil Sabnis
  • 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
  • Publication number: 20080125473
    Abstract: This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Application
    Filed: November 26, 2007
    Publication date: May 29, 2008
    Applicant: PFIZER LIMITED
    Inventors: NATHAN ANTHONY LOGAN CHUBB, MARK ROGER COX, JEROME SEBASTIEN DAUVERGNE, RICHARD ANDREW EWIN, CHRISTELLE LAURET
  • Publication number: 20080119536
    Abstract: This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
    Type: Application
    Filed: November 26, 2007
    Publication date: May 22, 2008
    Applicant: PFIZER LIMITED
    Inventors: NATHAN ANTHONY LOGAN CHUBB, MARK ROGER COX, JEROME SEBASTIEN DAUVERGNE, RICHARD ANDREW EWIN, CHRISTELLE LAURET
  • Publication number: 20080103130
    Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof are agonists at the beta-2 adrenoceptor. They are useful as feed additives for livestock animals.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 1, 2008
    Applicant: PFIZER LIMITED
    Inventors: Jessica Boyle, Ashley Fenwick, David Gethin, Catherine McCusker
  • Patent number: 7309712
    Abstract: Compounds of formula (I), or a pharmaceutically acceptable derivative thereof, wherein R1 and R3 independently represent H, C1-6alkyl, C3-8cycloalkyl, or halogen; R2 represents C1-6alkyl, CF3 or aryl; a represents 1 or 2; R4, R5, R7 and R8 independently represent H, C1-6alkyl, C1-6alkyloxy, CN or halogen, or R4 and R5, or R7 and R8, together with the ring to which they are attached form an aryl or heterocyclic fused ring system; X represents C or N; Y represents CH2 or O; R6 represents H, CN or halo provided that, when X represents N, R6 is absent. The compounds are useful for treating endometriosis, uterine fibroids (leiomyomata), menorrhagia, adenomyosis, primary and secondary dysmenorrhoea (including symptoms of dyspareunia, dyschexia and chronic pelvic pain), or chronic pelvic pain syndrome.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: December 18, 2007
    Assignee: Pfizer Limited
    Inventors: Paul Anthony Bradley, Kevin Neil Dack, Patrick Stephen Johnson, Sarah Elizabeth Skerratt
  • Publication number: 20070191462
    Abstract: The present invention relates to a combination of a 5-HT1B, 5-HT1D or 5-HT1F agonist and an alpha-2-delta ligand. Such a combination is useful in the treatment of pain, particularly the pain arising from migraine.
    Type: Application
    Filed: March 5, 2007
    Publication date: August 16, 2007
    Applicant: Pfizer Limited
    Inventors: Jayasena Hettiarachchi, Iradi Reza, Carolyn Sikes
  • Patent number: 7093594
    Abstract: A dosing device comprising a dispenser (26) for dispensing a dose material and a dose actuation mechanism (44) is provided. The dose actuation mechanism (44) comprises a number of integrally hinged links (52, 54, 55) which are connected to each other at hinging points. A deflectable tongue (157), moveable in response to air flow from inhalation by a patient is attached to a first link (52), to move the first link in response to air flow, movement of the first link being transferred to a second link (54) to cause actuation of the dispenser. The first link rests at an over center, or stable, position prior to operation, and moves under center during operation of the device to trigger movement of the second link. The dose actuation mechanism is a one-piece moulding from plastics material.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 22, 2006
    Assignee: Pfizer Limited
    Inventors: Nigel Harrison, Daniel Godfrey
  • Patent number: 7051771
    Abstract: A method and apparatus for introducing powder into a pocket (32) using a dosator (10) having an elongate cavity with an open end and a plunger (12) opposite the open end moveable along the cavity so as to define, between the plunger (12) and the open end, a space of variable volume, the method including, with the plunger (12) defining a volume greater than that of the pocket (32), inserting the open end into a source of powder so as to fill the volume with powder, positioning the open end over the pocket, driving the plunger so as to expel powder from the open end into the pocket and compress it to a predetermined bulk density and removing the open end from the pocket so as to leave the pocket full of powder with the predetermined bulk density.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: May 30, 2006
    Assignee: Pfizer Limited
    Inventors: Andrew John Ede, Peter John Houzego, John Martin Hewett
  • Patent number: 5512545
    Abstract: PDGF-B analogues are prepared in which an amino acid residue at a protease site is replaced with the corresponding amino acid residue from PDGF-A. The polypeptide is obtained at yields which are five to ten times greater than that for naturally occurring PDGF-B and retains the biological activity of the natural polypeptide.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: April 30, 1996
    Assignees: British Biotech Pharmaceuticals Limited, Pfizer Limited
    Inventors: David Brown, Richard M. Edwards, Stewart Craig, Anne L. Cook, John M. Clements