Patents Assigned to Pfizer Limited
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Patent number: 7608604Abstract: 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: GrantFiled: February 8, 2008Date of Patent: October 27, 2009Assignee: Pfizer LimitedInventors: Stuart Nicholas Comlay, Joanne Clare Hannam, William Howson, Christelle Lauret, Yogesh Anil Sabnis
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Patent number: 7592362Abstract: 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: GrantFiled: January 4, 2007Date of Patent: September 22, 2009Assignee: Pfizer LimitedInventors: Nathan Anthony Logan Chubb, Mark Roger Cox, Jerome Sebastien Dauvergne, Richard Andrew Ewin, Christelle Lauret
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Patent number: 7547718Abstract: 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: GrantFiled: November 26, 2007Date of Patent: June 16, 2009Assignee: Pfizer LimitedInventors: Nathan Anthony Logan Chubb, Mark Roger Cox, Jerome Sebastien Dauvergne, Richard Andrew Ewin, Christelle Lauret
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Patent number: 7544706Abstract: 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: GrantFiled: November 26, 2007Date of Patent: June 9, 2009Assignee: Pfizer LimitedInventors: Nathan Anthony Logan Chubb, Mark Roger Cox, Jerome Sebastien Dauvergne, Richard Andrew Ewin, Christelle Lauret
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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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Patent number: 7514464Abstract: 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: GrantFiled: June 15, 2005Date of Patent: April 7, 2009Assignee: Pfizer LimitedInventors: Denis Billen, Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe
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Publication number: 20080267942Abstract: 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: ApplicationFiled: April 11, 2008Publication date: October 30, 2008Applicant: Pfizer LimitedInventors: Jessica Boyle, Ashley Edward Fenwick, David Morris Gethin, Catherine Frances McCusker
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Patent number: 7435753Abstract: 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: GrantFiled: December 15, 2004Date of Patent: October 14, 2008Assignee: Pfizer LimitedInventors: Denis Billen, Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe
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Publication number: 20080200540Abstract: 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: ApplicationFiled: February 20, 2008Publication date: August 21, 2008Applicant: PFIZER LIMITEDInventors: Stephen Paul Gibson, Christelle Lauret
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Publication number: 20080194694Abstract: 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: ApplicationFiled: February 8, 2008Publication date: August 14, 2008Applicant: PFIZER LIMITEDInventors: Stuart Nicholas Comlay, Joanne Clare Hannam, William Howson, Christelle Lauret, Yogesh Anil Sabnis
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Publication number: 20080176865Abstract: 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: ApplicationFiled: December 13, 2007Publication date: July 24, 2008Applicant: PFIZER LIMITEDInventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
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Publication number: 20080146643Abstract: Compounds of formula (I) are used in combination with a second antiparasitic agent for the treatment of parasitic infestations in a host animal.Type: ApplicationFiled: December 13, 2007Publication date: June 19, 2008Applicant: PFIZER LIMITEDInventors: Denis Billen, Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham Michael Kyne
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Publication number: 20080125473Abstract: 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: ApplicationFiled: November 26, 2007Publication date: May 29, 2008Applicant: PFIZER LIMITEDInventors: NATHAN ANTHONY LOGAN CHUBB, MARK ROGER COX, JEROME SEBASTIEN DAUVERGNE, RICHARD ANDREW EWIN, CHRISTELLE LAURET
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Publication number: 20080119536Abstract: 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: ApplicationFiled: November 26, 2007Publication date: May 22, 2008Applicant: PFIZER LIMITEDInventors: NATHAN ANTHONY LOGAN CHUBB, MARK ROGER COX, JEROME SEBASTIEN DAUVERGNE, RICHARD ANDREW EWIN, CHRISTELLE LAURET
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Publication number: 20080103130Abstract: 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: ApplicationFiled: October 24, 2007Publication date: May 1, 2008Applicant: PFIZER LIMITEDInventors: Jessica Boyle, Ashley Fenwick, David Gethin, Catherine McCusker
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Patent number: 7309712Abstract: 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: GrantFiled: November 3, 2006Date of Patent: December 18, 2007Assignee: Pfizer LimitedInventors: Paul Anthony Bradley, Kevin Neil Dack, Patrick Stephen Johnson, Sarah Elizabeth Skerratt
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Publication number: 20070191462Abstract: 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: ApplicationFiled: March 5, 2007Publication date: August 16, 2007Applicant: Pfizer LimitedInventors: Jayasena Hettiarachchi, Iradi Reza, Carolyn Sikes
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Patent number: 7093594Abstract: 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: GrantFiled: September 24, 2001Date of Patent: August 22, 2006Assignee: Pfizer LimitedInventors: Nigel Harrison, Daniel Godfrey
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Patent number: 7051771Abstract: 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: GrantFiled: February 6, 2003Date of Patent: May 30, 2006Assignee: Pfizer LimitedInventors: Andrew John Ede, Peter John Houzego, John Martin Hewett
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Patent number: 5512545Abstract: 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: GrantFiled: August 31, 1993Date of Patent: April 30, 1996Assignees: British Biotech Pharmaceuticals Limited, Pfizer LimitedInventors: David Brown, Richard M. Edwards, Stewart Craig, Anne L. Cook, John M. Clements