Patents Represented by Attorney Peter C. Richardson
  • Patent number: 6784299
    Abstract: This invention relates to a series of substituted aromatic ethers of the formula I wherein ring A and X and Y are defined as in the specification, that exhibit activity as glycine transport inhibitors, their pharmaceutically acceptable salts, pharmaceutical compositions containing them, and their use for the enhancement of cognition and the treatment of the positive and negative symptoms of schizophrenia and other psychoses in mammals, including humans.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: August 31, 2004
    Assignee: Pfizer Inc.
    Inventor: John A. Lowe, III
  • Patent number: 6780611
    Abstract: Polynucleotide and polypeptide sequences are described. The polypeptide sequences comprise one or more of: (a) a polypeptide having the deduced amino acid sequence translated from the polynucleotide sequence in SEQ ID NO: 1 and variants, fragments, homologues, analogues and derivatives thereof; (b) a polypeptide of SEQ ID NO: 2 and variants, fragments, homologues, analogues and derivatives thereof; or (c) a polypeptide encoded by the cDNA of NCIMB 41066 and variants, fragments, homologues, analogues and derivatives thereof.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: August 24, 2004
    Assignee: Pfizer Inc.
    Inventor: Lee Harland
  • Patent number: 6776908
    Abstract: An improved device for equilibrium dialysis procedures utilizing a dialysis membrane inserted in a gap in and separating all of any number of test wells contained in the dialysis block into at least a donating and receiving side which can be accessed and manipulated at any time during testing from the top of the device is described. The device may be constructed from a series of nine blocks of virgin teflon, cut and made flat to achieve certain dimensions ideal for making the device compatible with standard 96-well format laboratory equipment and conducive to robotic automation. The bars are placed side-by-side and connected by a pair of alignment pins along which the bars can slide on a horizontal plane relative to one another, individually or collectively, to aid in assembly, usage and cleaning. The bars are further held together during usage by a clamping mechanism to prevent any leakage of the sample being tested.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: August 17, 2004
    Assignee: Pfizer Inc.
    Inventors: Michael J. Banker, Timothy J. Zuzel, John A. Williams
  • Patent number: 6777393
    Abstract: The invention relates to a method of preparing compounds of the formula and to pharmaceutically acceptable salts thereof. The compounds of formula 1 are antibacterial agents that may be used to treat various bacterial and protozoa infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating bacterial protozoa infections by administering the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1 and to intermediates useful in such preparation.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 17, 2004
    Assignee: Pfizer Inc.
    Inventors: Brian Scott Bronk, Michael Anthony Letavic, Takushi Kaneko, Bingwei Vera Yang, Edward Alan Glazer, Hengmiao Cheng
  • Patent number: 6777543
    Abstract: The invention relates to compounds of the formula and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein R1, R2, R3, R4, R5, R17, Rf, A, X, and Y are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formulas 1, methods of using the compounds of formula 1 in the treatment of infections and methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: August 17, 2004
    Assignee: Pfizer, Inc.
    Inventors: Yong-Jin Wu, Wei-Guo Su, Takushi Kaneko, Hamish McArthur
  • Patent number: 6777404
    Abstract: The present invention relates to compositions and methods of achieving a therapeutic effect including, the treatment or prevention of Syndrome X in an animal, preferably a mammal including a human subject or a companion animal, using a corticotropin releasing factor (CRF) antagonist alone or together with a glucocorticoid receptor antagonist.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: August 17, 2004
    Assignee: Pfizer Inc
    Inventors: Ernest S. Hamanaka, Yuhpyng Liang Chen
  • Patent number: 6777424
    Abstract: The present invention provides methods and kits for treating osteoarthritis using an estrogen agonist/antagonist.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: August 17, 2004
    Assignee: Pfizer Inc.
    Inventor: Bruce H. Littman
  • Patent number: 6770778
    Abstract: The present invention relates to oxygenated esters of 4-substituted-phenylamino benzhydroxamic acid derivatives, pharmaceutical compositions, and methods of use thereof.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: August 3, 2004
    Assignee: Pfizer Inc
    Inventors: Stephen Douglas Barrett, Michael David Kaufman, Gordon William Rewcastle, Julie Ann Spicer
  • Patent number: 6770645
    Abstract: Compound of general formula I: wherein R1, R2, R3, R4, X, Y and R5 have the meanings given herein which are useful in the curative and prophylactic treatment of a medical condition for which inhibition of a cyclic guanosine 3′,5′-monophosphate phosphodiesterase (e.g. cGMP PDE5) is desired.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: August 3, 2004
    Assignee: Pfizer Inc.
    Inventors: Stephen Martin Denton, Mark Ian Kemp, Sandra Dora Newman, David James Rawson
  • Patent number: 6767558
    Abstract: The invention provides methods for inhibiting oxidative degradation of pharmaceutical formulations comprising at least one oxidation-susceptible active drug ingredient which methods comprise adding an oxidation-inhibiting amount of a ferrous ion source, preferably in the form of a pharmaceutical excipient, to the formulation. The invention further provides pharmaceutical formulations comprising at least one oxidation-susceptible active drug ingredient and an oxidation-inhibiting amount of a ferrous iron source, preferably in the form of a pharmaceutical excipient. The invention still further provides for the use of a ferrous ion source as an anti-oxidant in pharmaceutical formulations.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: July 27, 2004
    Assignee: Pfizer Inc.
    Inventor: Hai Wang
  • Patent number: 6763607
    Abstract: Conventional spray-drying methods are improved by incorporation of a pressure nozzle and a diffuser plate to improve the flow of drying gas and a drying chamber extension to increase drying time, such improvements leading to the formation of homogeneous solid dispersions of drugs in concentration-enhancing polymers.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: July 20, 2004
    Assignee: Pfizer Inc.
    Inventors: Ronald A. Beyerinck, Heather L. M. Deibele, Dan E. Dobry, Roderick J. Ray, Dana M. Settell, Ken R. Spence
  • Patent number: 6764993
    Abstract: The invention provides methods of protecting solid-state proteins from the effects of ionizing radiation which comprise combining the protein with a radiation-protecting amount of a methoxysalicylaldehyde derivative, preferably 3-methoxysalicylaldehyde; radiation-protecting amounts of a methoxysalicylaldehyde derivative, preferably 3-methoxysalicylaldehyde, and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid; or radiation-protecting amounts of a methoxysalicylaldehyde derivative, preferably 3-methoxysalicylaldehyde and isopropanol, prior to exposing the protein to ionizing radiation.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: July 20, 2004
    Assignee: Pfizer Inc.
    Inventors: Evgenyi Y. Shalaev, Renuka D. Reddy, Roger N. Kimball
  • Patent number: 6765023
    Abstract: The invention relates to substituted polycyclic aryl and heteroaryl tertiary-heteroalkylamine compounds useful as inhibitors of cholesteryl ester transfer protein (CETP; plasma lipid transfer protein-I) and compounds, compositions and methods for treating atherosclerosis and other coronary artery diseases. Preferred tertiary-heteroalkylamine compounds are substituted N,N-disubstituted reverse aminoalcohols.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 20, 2004
    Assignee: Pfizer, Inc.
    Inventors: James A. Sikorski, Richard C. Durley, Deborah A. Mischke, Emily J. Reinhard, Yvette M. Fobian, Michael B. Tollefson, Lijuan Wang, Margaret L. Grapperhaus, Brian S. Hickory, Mark A. Massa, Monica B. Norton, William F. Vernier, Barry L. Parnas, Michele A. Promo, Ashton T. Hamme, Dale P. Spangler, Melvin L. Rueppel
  • Patent number: 6764676
    Abstract: The present invention is directed to a novel strain of feline immunodeficiency virus, designated herein as FIV-141, and to attenuated forms of the virus produced by mutating specific regions of the viral genome. The virus and mutated forms of the virus may be used to induce the production of antibodies to FIV-141, and in vaccines designed to protect cats from FIV.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: July 20, 2004
    Assignee: Pfizer Inc.
    Inventors: Ruitang Deng, Michael G. Sheppard
  • Patent number: 6759534
    Abstract: The present invention relates to a process for preparing pyridazinone aldose reductase inhibitors which are useful in the prevention and/or treatment of diabetic complications such as diabetic neuropathy, diabetic retinopathy, diabetic nephropathy, diabetic cardiomyopathy, diabetic microangiopathy and diabetic macroangiopathy in mammals. The invention also relates to novel intermediates useful in preparing those aldose reductase inihibitors.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: July 6, 2004
    Assignee: Pfizer Inc.
    Inventor: Norma J. Tom
  • Patent number: 6756373
    Abstract: There is provided a compound of formula I: wherein X represents O or NR5 R4 represents H, halo, cyano, nitro, halo(loweralkyl), OR6, OC(O)R7, C(O)R8, C(O)OR9, C(O)NR10R11, NR12R13, NR16Y(O)R17, N[Y(O)R17]2, SOR18, SO2R19, C(O)AZ, lower alkyl, lower alkenyl, lower alkynyl, Het, alkylHet, aryl, alkylaryl (which latter seven groups are all optionally substituted with one or more substituents selected from halo, cyano, nitro, lower alkyl, halo(loweralkyl), OR6, OC(O)R7, C(O)R8, C(O)OR9, C(O)NR10R11, NR12R13 and SO2NR14R15) which are useful in the curative and prophylactic treatment of a medical condition for which inhibition of a cyclic guanosine 3′,5′-monophosphate phosphodiesterase (e.g., cGMP PDE5) is desired.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: June 29, 2004
    Assignee: Pfizer Inc.
    Inventors: Charlotte Moira Norfor Allerton, Christopher Gordon Barber, Graham Nigel Maw, David James Rawson
  • Patent number: 6756388
    Abstract: The invention is a compound of Formula (I): wherein R is —OH, R1 is —OH, R2 is —H, n is 2 or 3 and X is sulfur, or a pharmaceutically acceptable salt of a compound having Formula (1), or a pharmaceutical composition comprising a compound having Formula (1) or a pharmaceutically acceptable salt thereof, or methods of treating bone loss, breast cancer or prostate cancer comprising administering an effective amount of the compound having Formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: June 29, 2004
    Assignee: Pfizer Inc.
    Inventors: Kimberly O. Cameron, Paul Da Silva-Jardine, Eric R. Larson, James R. Hauske, Robert L. Rosati
  • Patent number: 6756392
    Abstract: The invention relates to nicotinamide derivatives and to processes for the preparation of, intermediates used in the preparation of, compositions containing and the uses of, such derivatives. The nicotinamide derivatives according to the present invention are useful in numerous diseases, disorders and conditions, in particular inflammatory, allergic and respiratory diseases, disorders and conditions as well as for wounds healing.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: June 29, 2004
    Assignee: Pfizer Inc
    Inventor: Thomas V. Magee
  • Patent number: 6756401
    Abstract: This invention relates to methods, pharmaceutical compositions and kits useful in promoting bone formation and/or preventing bone loss and lowering blood cholesterol. The compositions are comprised of an estrogen agonist/antagonist as a first active component and a statin as a second active component and a pharmaceutically acceptable vehicle, carrier or diluent. The compositions and methods of treatment are effective while substantially reducing the concomitant liability of adverse effects associated with estrogen administration.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: June 29, 2004
    Assignee: Pfizer Inc.
    Inventors: Wesley W. Day, Andrew G. Lee, David D. Thompson
  • Patent number: 6753340
    Abstract: A compound selected from those of formula (I): wherein R1a, R1b, R2, R3, are as defined in the description, and optionally, its optical isomers, N-oxide, and addition salts thereof with a pharmaceutically-acceptable acid or base, and medicinal products containing the same are useful as specific inhibitors of phosphosdiesterase-7 (PDE-7).
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: June 22, 2004
    Assignee: Warner-Lambert Company LLC
    Inventors: Fabrice Vergne, Patrick Bernardelli, Edwige Lorthiois, Pierre Ducrot