Patents Assigned to Pfizer Inc.
  • Patent number: 5270323
    Abstract: A method of relieving erectile impotence in a human male. The method comprises administering to the male an erectile impotence relieving amount of a compound selected from the group consisting of U.K. 52,046, Amlodipine, Doxazosin and the pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: December 14, 1993
    Assignee: Pfizer Inc.
    Inventors: George M. Milne, Jr., Michael G. Wyllie
  • Patent number: 5270331
    Abstract: Antiinflammatory and analgesic oxindole prodrugs of the formula ##STR1## wherein R.sup.10, R.sup.11, R.sup.12 and R.sup.13 are hydrogen, alkyl or halogen and R is methyleneoxyalkanoyl, methyleneoxyalkenoyl or alkenoyl.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: December 14, 1993
    Assignee: Pfizer, Inc.
    Inventors: Wayne E. Barth, Kelvin Cooper, Edward F. Kleinman, Lawrence A. Reiter, Ralph P. Robinson
  • Patent number: 5270206
    Abstract: Process for the pancreatic lipase mediated transesterification method for the optical resolution of endo-norborneol; derived optically active 5-(3-(exo-bicyclo[2.2.1]hept-2-yloxy)-4-methoxyphenyl)-3,4,5,6-tetrahydrop yrimidin-2(1H)-ones; and stepwise process and intermediate therefor.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: December 14, 1993
    Assignee: Pfizer Inc.
    Inventor: Nicholas A. Saccomano
  • Patent number: 5269818
    Abstract: A form of calcium carbonate having a blocky[-six-sided] rhombohedral crystal [habit ] structure and [a morphology, with] properties including a surface area of from about 3 to about 15 m.sup.2 /g, an average discrete particle size of from about 0.2 to about 0.9 micron, wherein the discrete particles have an aspect ratio less than 2, and a particle size distribution such that at least about 60 weight percent of the particles have a size within 50 percent of the equivalent discrete particle spherical diameter, suitable for use as a filler material in papermaking to improve the optical properties of the resulting paper, is disclosed.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: December 14, 1993
    Assignee: Pfizer Inc
    Inventors: Charles J. Kunesh, June D. Passaretti
  • Patent number: 5268453
    Abstract: Human insulin analogs are disclosed. These analogs are tissue-selective. Accordingly, pharmaceutical formulations containing the analogs of the invention provide superior clinical benefits as compared to human insulin when used in the treatment of patients suffering from diabetes. The analogs are modified at amino residue A12, A15 or A19, are different from the naturally occurring residue at said position, and are hepatoselective. Also disclosed are human insulin analogs modified at amino acid residues A12 or A14 or amino acid residues A10 and A13 different from naturally occurring residues or residues at said position or positions and are peripheral selective. DNA sequences and microorganisms comprising sequences coding for human insulin analogs are also provided. Processes for preparing the human insulin analogs are described.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: December 7, 1993
    Assignees: Scios Inc., Pfizer Inc., Scios Inc., Pfizer Inc
    Inventors: Robin J. Andy, Eric R. Larson
  • Patent number: 5266569
    Abstract: Quinolone carboxylic acids 7-substituted by azabicyclo groups have antibacterial activity.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: November 30, 1993
    Assignee: Pfizer Inc.
    Inventor: Katherine E. Brighty
  • Patent number: 5260467
    Abstract: The invention provides the substantially optically pure 2(S)-stereoisomeric form of compounds of the formulae: ##STR1## and the salts thereof, together with processes for their preparation. The compounds are intermediates for the preparation of antihypertensive agents.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: November 9, 1993
    Assignee: Pfizer Inc.
    Inventors: Ian T. Barnish, Keith James
  • Patent number: 5260309
    Abstract: The present invention relates to compounds of the formula ##STR1## wherein the broken line represents a saturated or an olefinic bond, R.sup.1 and R.sup.4 are each hydrogen or C.sub.1 to C.sub.6 alkyl, and R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 to C.sub.6 alkyl, halogen, C.sub.1 to C.sub.6 alkoxy or C.sub.1 to C.sub.6 alkylthio, and pharmaceutically acceptable salts thereof, pharmaceutical compounds containing the same, methods of preparing the foregoing compounds, and to novel intermediates in the preparation of the foregoing compounds. These compounds are useful as agents in the prevention of neuronal damage in the brain following cerebral ischemia and during the progression of Alzheimer's disease and also as anticonvulsants.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: November 9, 1993
    Assignee: Pfizer Inc.
    Inventor: Ralph P. Robinson
  • Patent number: 5258194
    Abstract: A browning composition is prepared by mixing an oil phase containing an emulsifier with an aqueous phase containing a colorant under shear conditions to form a dispersion of the aqueous phase in the oil phase.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: November 2, 1993
    Assignee: Pfizer Inc.
    Inventors: James M. Anderson, Ping W. Chang, Christopher A. Macri, James W. Miller, Divina V. Sarges
  • Patent number: 5256789
    Abstract: Compounds having the structure ##STR1## wherein X is nitrogen, oxygen, sulfur or a bond and Z is oxygen or sulfur have been synthesized. These compounds are lipoxygenase inhibitors and are useful as the active agent in pharmaceutical compositions for treating inflammatory conditions in humans and other mammals for which lipoxygenase activity has been implicated.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: October 26, 1993
    Assignee: Pfizer Inc.
    Inventors: Rodney W. Stevens, Takafumi Ikeda, Hiroaki Wakabayashi, Masami Nakane
  • Patent number: 5256791
    Abstract: This invention relates to novel processes for preparing compounds of the formulae ##STR1## wherein R and X defined as below. Compounds of the formulae VII are useful as intermediates in the syntheses of azabicyclo quinoline carboxylic acids having antibacterial activity. This invention also relates to certain novel intermediates in the syntheses such antibiotics.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: October 26, 1993
    Assignee: Pfizer Inc.
    Inventor: Tamim F. Braish
  • Patent number: 5254570
    Abstract: The present invention relates to a pharmaceutical composition comprising: (a) a compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are as defined below; and (b) isosorbide 5-mononitrate or isosorbide 2-mononitrate or glycerol trinitrate or glycerol 1-mononitrate or glycerol 2-mononitrate: and, optionally (c) a pharmaceutically acceptable carrier. The composition is useful in the prevention and treatment of cardiovascular diseases, and is especially useful in the prevention and treatment of angina pectoris and myocardial infarction.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: October 19, 1993
    Assignee: Pfizer Inc.
    Inventors: Peter Stoss, Matyas Leitold
  • Patent number: 5250534
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, C.sub.3 -C.sub.5 cycloalkyl or C.sub.1 -C.sub.3 perfluoroalkyl; R.sup.2 is H, C.sub.1 -C.sub.6 alkyl optionally substituted by OH, C.sub.1 -C.sub.3 alkoxy or C.sub.3 -C.sub.6 cycloalkyl, or C.sub.1 -C.sub.3 perfluoroalkyl; R.sup.3 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.6 perfluoroalkyl or (C.sub.3 -C.sub.6 cycloalkyl)C.sub.1 -C.sub.6 alkyl; R.sup.4 taken together with the nitrogen atom to which it is attached completes a pyrrolidinyl, piperidino, morpholino, or 4-N-(R.sup.6)-piperazinyl group; R.sup.5 is H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 alkoxy, NR.sup.7 R.sup.8, or CONR.sup.7 R.sup.8 ; R.sup.6 is H, C.sub.1 -C.sub.6 alkyl, (C.sub.1 -C.sub.3 alkoxy) C.sub.2 - C.sub.6 alkyl, hydroxy C.sub.2 -C.sub.6 alkyl, (R.sup.7 R.sup.8 N)C.sub.2 -C.sub.6 alkyl, (R.sup.7 R.sup.8 NCO)C.sub.1 -C.sub.6 alkyl, CONR.sup.7 R.sup.8, CSNR.sup.7 R.sup.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: October 5, 1993
    Assignee: Pfizer Inc.
    Inventors: Andrew S. Bell, David Brown, Nicholas K. Terrett
  • Patent number: 5250531
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: October 5, 1993
    Assignee: Pfizer Inc.
    Inventor: Kelvin Cooper
  • Patent number: 5248820
    Abstract: A process and intermediates for the manufacture of S-3-methylheptanoic acid from S-citronellol; a novel crystalline form of immunoregulatory N-(S-3-methylheptanoyl)-D-gamma-glutamyl-glycyl-D-alanine, an immunoregulatory agent; and an improved process and intermediates therefor.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: September 28, 1993
    Assignee: Pfizer Inc.
    Inventor: Charles W. Murtiashaw
  • Patent number: 5248699
    Abstract: This invention relates to a novel crystalline polymorphic form of sertraline hydrochloride, (1S-cis)-4-(3,4-dichlorophenyl)-1,2,3,4 -tetrahydro-N-methyl-1-naphthalenamine hydrochloride, and to a method for preparing it.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: September 28, 1993
    Assignee: Pfizer Inc.
    Inventors: Robert J. Sysko, Douglas J. M. Allen
  • Patent number: 5248681
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Pfizer Inc.
    Inventor: Kelvin Cooper
  • Patent number: 5247727
    Abstract: A tool for removing filter membranes from a filter housing without breaking the membranes. The tool comprises a threaded screw means (27) for pressing the membrane (60) though holes in opposing sides of the housing (48) and a guide means (21) for maintaining the screw means (27 ) in alignment with the holes. The guide means (21) has a threaded hole for receiving the threaded screw means (27) therethrough. The guide means (21) is slidably retained along a beam (3) and disposed between removable fastening means (9, 12) used to clamp the tool to the filter housing (48).
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: September 28, 1993
    Assignee: Pfizer Inc.
    Inventors: John G. Harris, Willard K. Moon
  • Patent number: 5248685
    Abstract: Substituted 1-[3-(heteroarylmethoxy)phenyl]-alkanols and related compounds which, by inhibiting 5-lipoxygenase enzyme and/or blocking leukotriene receptors, are useful in the prevention or treatment of asthma, arthritis, psoriasis, ulcers, myocardial infarction, stroke and related disease states in mammals; pharmaceutical compositions thereof; and a method of treatment therewith.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: September 28, 1993
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Anthony Marfat, Hiroko Masamune, Lawrence S. Melvin, Jr.
  • Patent number: 5245079
    Abstract: Immunoregulatory N-(S-3-alkyl-4-heptenoyl)- and N-(S-3-alkylheptanoyl)-D-gamma-glutamyl-glycyl-D-alanine and esters thereof are synthesized via R-trans-2-hexen-4-ols, R-3-alkyl-4-heptenoic acid and S-3-alkylheptanoic acid.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Pfizer Inc.
    Inventor: Charles W. Murtiashaw