Search Patents
  • Patent number: 6284757
    Abstract: This invention relates to the use of compounds of formula I wherein R1, R2, R3, X, m and n are defined as in the specification, and their pharmaceutically acceptable salts, for the treatment of disorders of the serotonin system.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: September 4, 2001
    Assignee: Pfizer Inc.
    Inventor: Mark Allen Sanner
  • Patent number: 5565453
    Abstract: Antipsychotic compounds having the formula ##STR1## wherein R is hydrogen, acyl or substituted acyl; and a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: October 15, 1996
    Assignee: Pfizer Inc.
    Inventors: Gene M. Bright, Kishor A. Desai, Thomas F. Seeger, Teresa A. Smolarek
  • Publication number: 20020094986
    Abstract: The present invention relates to a method of treating depression, anxiety or psychosis in a mammal, including a human, by administering to the mammal a D4 receptor antagonist in combination with an antidepressant or an anxiolytic agent. It also relates to pharmaceutical compositions containing a pharmaceutically acceptable carrier, a D4 receptor antagonist and an antidepressant or an anxiolytic agent.
    Type: Application
    Filed: December 5, 2001
    Publication date: July 18, 2002
    Applicant: Pfizer Inc
    Inventors: Phillip Branch Chappell, Stevin Howard Zorn
  • Publication number: 20040048869
    Abstract: The present invention relates to a method of treating depression, anxiety or psychosis in a mammal, including a human, by administering to the mammal a D4 receptor antagonist in combination with an antidepressant or an anxiolytic agent. It also relates to pharmaceutical compositions containing a pharmaceutically acceptable carrier, a D4 receptor antagonist and an antidepressant or an anxiolytic agent.
    Type: Application
    Filed: September 3, 2003
    Publication date: March 11, 2004
    Applicant: Pfizer Inc
    Inventors: Phillip Branch Chappell, Stevin Howard Zorn
  • Patent number: 5731307
    Abstract: The instant invention is directed to compounds, compositions and antipsychotic methods of use wherein the compounds are of formula I: ##STR1## wherein Y is an imide or benzoyl alkyl group and X is a cycloalkyl, phenyl or dibenzoazepinyl group.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: March 24, 1998
    Assignee: Pfizer, Inc.
    Inventor: Kishor A. Desai
  • Publication number: 20040235850
    Abstract: The invention relates to novel pharmaceutical dosage forms of varenicline, which are useful for aiding smoking cessation and which have good storage stability. In particular, the present invention relates to formulations of varenicline wherein the dosage forms that are produced therefrom generate under specified storage conditions less than about 4% on a weight basis of the N-formyl and N-methyl degradation products.
    Type: Application
    Filed: May 18, 2004
    Publication date: November 25, 2004
    Applicant: Pfizer Inc
    Inventor: Kenneth C. Waterman
  • Patent number: 6914160
    Abstract: This invention relates to compounds of formula (I)
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: July 5, 2005
    Assignee: Pfizer Inc
    Inventors: Duncan Robert Armour, Andrew Simon Bell, Paul John Edwards, David Ellis, David Hepworth, Mark Llewellyn Lewis, Christopher Ronald Smith
  • Patent number: 6197773
    Abstract: A compound of the formula wherein m, R1, R2, R3, R4, R5 and X are as defined above, useful in treating or preventing migraine, depression and other disorders for which a 5-HT1 agonist or antagonist is indicated.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: March 6, 2001
    Assignee: Pfizer Inc
    Inventor: Harry R. Howard
  • Patent number: 5214044
    Abstract: The invention provides compounds of the formula: ##STR1## The variables are defined in the specification. The compounds are useful e.g. for the curative or prophylactic treatment of allergic conditions.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: May 25, 1993
    Assignee: Pfizer Inc.
    Inventors: Kelvin Cooper, Michael J. Fray
  • Patent number: 5122525
    Abstract: Anxiolytic agents which are racemic or optically active pyrido[1,2-a]pyrazine derivatives of the formula ##STR1## wherein x is N or CH and Y represents one of certain pyrazolo, triazolo, tetrazolo or cyclic imido radicals; and intermediates therefor.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: June 16, 1992
    Assignee: Pfizer Inc.
    Inventors: Gene M. Bright, Kishor A. Desai
  • Publication number: 20030149044
    Abstract: The present invention is directed to the succinate salts of 5,7,13-triazatetracyclo[9.3.1.02,10.
    Type: Application
    Filed: November 27, 2002
    Publication date: August 7, 2003
    Applicant: Pfizer Inc.
    Inventors: George J. Quallich, Lewin T. Wint
  • Publication number: 20110144084
    Abstract: The present invention is directed to compounds of formula (I), and pharmaceutically acceptable salts thereof, their synthesis, and their use as CHK-1 inhibitors.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 16, 2011
    Applicant: PFIZER INC
    Inventors: John Frederick Braganza, Michael Raymond Collins, John Charles Kath, Sacha Ninkovic, Hui Li, Daniel Tyler Richter
  • Publication number: 20140057919
    Abstract: The present invention is directed to a new class of hydroxamic acid derivatives, their use as LpxC inhibitors and, more specifically, their use to treat bacterial infections.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 27, 2014
    Applicant: Pfizer Inc.
    Inventors: Usa Reilly, Michael Joseph Melnick, Matthew Frank Brown, Mark Stephen Plummer, Justin Ian Montgomery, Ye Che, Loren Michael Price
  • Publication number: 20120258950
    Abstract: The present invention relates to compounds of Formula (I) and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as Trk antagonists.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 11, 2012
    Applicant: PFIZER LIMITED
    Inventors: Mark David Andrews, Sharanjeet Kaur Bagal, Karl Richard Gibson, Kiyoyuki Omoto, Thomas Ryckmans, Sarah Elizabeth Skerratt, Paul Anthony Stupple
  • Patent number: 8809333
    Abstract: The present invention is directed to a new class of hydroxamic acid derivatives, their use as LpxC inhibitors and, more specifically, their use to treat bacterial infections.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 19, 2014
    Assignee: Pfizer Inc.
    Inventors: Matthew Frank Brown, Jinshan Michael Chen, Michael Joseph Melnick, Justin Ian Montgomery, Usa Reilly
  • Patent number: 7056922
    Abstract: A compound of the formula wherein D, E, F, G, L, T, W, X, Y, Z, U, A, R1, R2, R3, R4, R5, R6 R7 are as defined in the specification, pharmaceutical compositions thereof, and methods of use to treat diseases and as D3 receptor modulators.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: June 6, 2006
    Assignee: Pfizer Inc
    Inventors: Anton F. J. Fliri, Anthony R. Reinhold
  • Patent number: 5616585
    Abstract: Racemic or optically active pyrido[1,2-a]pyrazine derivatives of the formula ##STR1## wherein X is N or CH and Y represents one of certain pyrazolo, triazolo, tetrazolo or cyclic imido radicals are useful in the treatment of abuse of and/or addiction to such substances as narcotics, alcohol and nicotine.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: April 1, 1997
    Assignee: Pfizer Inc.
    Inventor: Gene M. Bright
  • Patent number: 6451803
    Abstract: This invention relates to the use of a compound of the formula wherein m, R1, R2, R3, R4, R5 and X are as defined in the disclosure, for treating or preventing migraine, depression and other disorders for which a 5-HT1 agonist or antagonist is indicated.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: September 17, 2002
    Assignee: Pfizer INC
    Inventor: Harry R. Howard
  • Patent number: 6548502
    Abstract: The present invention provides a method of treating or preventing a novelty-seeking disorder, such as pathological gambling, attention deficit disorder with hyperactivity disorder and sex addiction, comprising administering a compound which is a dopamine D4 receptor ligand, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: April 15, 2003
    Assignee: Pfizer Inc
    Inventors: Stevin H. Zorn, Mark A. Sanner, Antor F. Fliri, Patricia A. Seymour
  • Publication number: 20140364415
    Abstract: The present invention relates to compounds of Formula (I) and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as Trk antagonists.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Applicant: PFIZER LIMITED
    Inventors: Mark David Andrews, Sharanjeet Kaur Bagal, Karl Richard Gibson, Kiyoyuki Omoto, Thomas Ryckmans, Sarah Elizabeth Skerratt, Paul Anthony Stupple
  • Patent number: 5125102
    Abstract: A digitally trunked radio repeater system provides substantial improvements in timeliness of channel acquisition and channel drop, and in reliability of critical control signalling. The system uses a much higher digital signalling rate than is typically found in prior art systems, and uses a control channel to convey digital channel request and assignment messages between the central site and mobile transceivers. The mobile radio transceivers transmit channel requests on the control channel (if no response is received, the mobile retries during a retry time window which increases in duration in dependence on the number of retries). The mobile transceiver switches to a working channel in response to an assignement message received on the control channel. Subaudible digital signals transmitted on the control channel and on active working channels allow late entry, shifting to higher priority calls, and other advanced functions.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: June 23, 1992
    Assignee: Ericsson GE Mobile Communications Inc.
    Inventors: Jeffrey S. Childress, Marc A. Dissosway, Gerald M. Cooper, Houston H. Hughes, III