Patents Assigned to Pfizer
  • Patent number: 4767777
    Abstract: A triazole of the formula ##STR1## wherein R is phenyl substituted by difluoro, fluoro, dichloro or chloro and R' is phenyl substituted by chloro or fluoro are useful antifungal agents.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: August 30, 1988
    Assignee: Pfizer Inc.
    Inventors: Robert J. Bass, Kelvin Cooper, Kenneth Richardson
  • Patent number: 4767743
    Abstract: Peptide components of formula 1, pharmaceutically acceptable base salts thereof, pharmaceutical compositions and their use as antiinfective agents ##STR1## where R.sub.1 is alkyl, cycloalkyl or cycloalkylmethyl; R.sub.2 is hydrogen or alkyl and R.sub.3 is hydroxy or an amino acid residu of the formula ##STR2## where X is hydrogen, alkyl or hydroxymethyl and n is an integer of 0 to 4 and R.sub.4 and R.sub.5 are alkyl, hydrogen, benzyl or cyclohexylmethyl.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: August 30, 1988
    Assignee: Pfizer Inc.
    Inventor: James P. Rizzi
  • Patent number: 4766117
    Abstract: An improved antiinflammatory composition and method of treating inflammation which employs a combination of antiinflammatory piroxicam, or a pharmaceutically acceptable salt thereof, with analgesic acetaminophen, antidepressant doxepin, bronchodilator pirbuterol, minor tranquilizer diazepam, or antihypertensive trimazosin.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: August 23, 1988
    Assignee: Pfizer Inc.
    Inventors: Thomas C. Crawford, Stanley L. Keely, David L. Larson, Joseph G. Lombardino, James J. Maciejko
  • Patent number: 4766141
    Abstract: Spiro-succinimides are disclosed which are useful as aldose reductase inhibitors and as therapeutic agents for the treatment of complications arising from diabetes. Pharmaceutical compositions containing the spiro- compounds and a method of treating diabetic complications are also disclosed.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: August 23, 1988
    Assignee: Pfizer Inc.
    Inventor: Christopher A. Lipinski
  • Patent number: 4762921
    Abstract: 6-(1-Acyl-1-hydroxymethyl)penicillanic acid derivatives are useful as antibacterials and/or beta-lactamase inhibitors.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: August 9, 1988
    Assignee: Pfizer Inc.
    Inventor: Lawrence A. Reed, III, deceased
  • Patent number: 4762838
    Abstract: Variously substituted trans-3-[3-(3-hydroxypiperid-2-yl)-2-oxopropyl]quinazolin-4-(3H)-ones, a method of controlling or preventing coccidiosis in poultry therewith, intermediates therefor, and a process for the preparation of certain intermediates therefor.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: August 9, 1988
    Assignee: Pfizer Inc.
    Inventor: Edward A. Glazer
  • Patent number: 4762920
    Abstract: A process for the preparation of penicillanic acid 1,1-dioxide and esters thereof readily hydrolyzable in vivo, which comprises oxidation of a 6,6-dihalopenicillanic acid, or an ester thereof readily hydrolyzable in vivo, to the corresponding 6,6-dihalopenicillanic acid 1,1-dioxide or ester thereof, followed by dehalogenation (e.g. by hydrogenolysis). The 6,6-dihalopenicillanic acid 1,1-dioxides and esters thereof readily hydrolyzable in vivo are novel intermediates. Penicillanic acid 1,1-dioxide, and esters thereof readily hydrolyzable in vivo, are known compounds which are useful as beta-lactamase inhibitors and for enhancing the effectiveness of certain beta-lactam antibiotics (e.g. the penicillins) in the treatement of bacterial infections in mammals, particularly humans.
    Type: Grant
    Filed: August 5, 1986
    Date of Patent: August 9, 1988
    Assignee: Pfizer, Inc.
    Inventors: Ronnie D. Carroll, Robert A. Volkmann
  • Patent number: 4761485
    Abstract: A two-step process for the synthesis of certain indol-2(3H)-ones from indoles, and the 3,3-dibromoindol-2(3H)-ones which are intermediates in that process.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: August 2, 1988
    Assignee: Pfizer Inc.
    Inventor: Anthony Marfat
  • Patent number: 4757833
    Abstract: A method for improving the mobility and pipeline transport of a viscous crude oil by forming an oil-in-water emulsion with said oil and from 10 to 80% by weight of water in the presence of 100 to 1500 parts by weight of a surfactant blend per million parts by weight of said emulsion, said blend comprising from 15 to 85 parts by weight of an anionic or amphoteric surfactant (A) selected from those of the formulae Ar(OCH.sub.2 CH.sub.2).sub.n OSO.sub.3 H, ##STR1## a sodium and ammonium salt thereof, and from 85 to 15 parts by weight of a nonionic surfactant selected from (B) of the formula Ar(OCH.sub.2 CH.sub.2).sub.p OH or (C) of the formula ##STR2## the latter having an HLB value of from 10 to 20; where Ar is octylphenyl or nonylphenyl,n is 2 to 10,p is 10 to 100,a is 10 to 40, b is 15 to 55, c is 10 to 40,R.sup.1 is C.sub.8 to C.sub.18 alkyl andR.sup.2 is C.sub.12 to C.sub.18 alkyl;and said emulsion.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: July 19, 1988
    Assignee: Pfizer Inc.
    Inventor: Dennis E. Danley
  • Patent number: 4758569
    Abstract: This invention relates to the use of doxazosin or a pharmaceutically acceptable acid addition salt thereof as an agent for retarding the development of atherosclerosis in a mammal, especially for reducing atherosclerotic plaque involvement and for retarding and reducing both the fibrosis and lipid deposition of developing atherosclerotic plaques associated with atherosclerosis.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: July 19, 1988
    Assignee: Pfizer Inc.
    Inventor: Archie C. Swindell
  • Patent number: 4758568
    Abstract: A series of novel 2-substituted 4-amino-6,7-dimethoxyquinoline derivatives have been prepared, including their pharmaceutically acceptable acid addition salts. These particular compounds are useful in therapy as highly potent antihypertensive agents. Preferred member compounds include 4-amino-2-[4-(2-furoyl)piperazin-l-yl]-6,7-dimethoxyquinoline, 4-amino-2-[4-(1,4-benzodioxan-2-carbonyl)piperazin-1-yl]-6,7-dimethoxyquin oline and 4-amino-6,7-dimethoxy-2-(6,7-dimethoxy-1,2,3,4-tetrahydroisoquinol-2-yl)qu inoline, respectively. Methods for preparing these compounds from known starting materials are provided.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: July 19, 1988
    Assignee: Pfizer Inc.
    Inventors: Simon F. Campbell, John D. Hardstone
  • Patent number: 4756501
    Abstract: Apparatus for supporting a housing from a support including a bracket member formed of at least two opposed walls and having a post member extending between the walls, one of the walls capable of being positioned on the housing; and a hook member having one end rotatably secured about the post member for selective rotational movement from a first storage position to a second hanging position, the other end of the hook member being configured for engagement with the support, the one end of the hook member and the bracket being configured and dimensioned so that the hook member remains locked in the hanging position.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: July 12, 1988
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventors: Riccardo Quercia, Quinton J. Farrar, Frederick A. Everett, Jr.
  • Patent number: 4755183
    Abstract: A prosthesis for an anterior cruciate ligament features first and second elongate members, first and second separately tensionable cords, a catch means on the bore surface of each elongate member, and a means for securing the elongate members to the femur and tibia, respectively. The prosthesis has the significant advantage of being able to replace and to perform in substantially the same manner as a natural anterior cruciate ligament. The separate tensioning followed by fixing of the two cords in the implanted prosthesis results in a substantially smoother and more stable range of motion than has been possible with prior art prostheses.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: July 5, 1988
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventor: Robert V. Kenna
  • Patent number: 4753679
    Abstract: Particulate calcium carbonate or iron oxide pretreated with a fatty acid such as stearic acid or oleic acid is added to a cementitious product to improve its strength and resistance to water absorption and penetration. Dry, aqueous and nonaqueous methods of addition are employed.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: June 28, 1988
    Assignee: Pfizer, Inc.
    Inventors: John Damiano, Alan H. Bruder
  • Patent number: 4753956
    Abstract: Hypoglycemic 5-chromanyl, 2,3-dihydro-5-benzo[b]-furanyl, 5-pyridyl, 5-quinolyl, 5-pyrrolyl, 5-indolyl, 5-thiazolyl, 5-oxazolyl, 5-isothiazolyl and 5-isoxazolyl oxazolidine-2,4-diones and the pharmaceutically-acceptable salts thereof; certain 3-acylated derivatives thereof; a method of treating hyperglycemic animals therewith; and intermediates useful in the preparation of said compounds.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: June 28, 1988
    Assignee: Pfizer Inc.
    Inventor: Rodney C. Schnur
  • Patent number: 4752609
    Abstract: Certain novel 2-oxindole compounds, having an acyl substituent at both the 1-position and the 3-position, are inhibitors of the cyclooxygenase (CO) and lipoxygenase (LO) enzymes, and are useful as analgesic agents and antiinflammatory agents in mammalian subjects. These 1,3-diacyl-2-oxindole compounds are of particular value for acute administration for ameliorating pain in human patients recovering from surgery or trauma, and also for chronic administration to human subjects for alleviating the symptoms of chronic diseases such as rheumatoid arthritis and osteoarthritis.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: June 21, 1988
    Assignee: Pfizer Inc.
    Inventor: Saul B. Kadin
  • Patent number: 4751317
    Abstract: An antibiotic has been isolated from fermentation of a new Streptomyces culture. The new ionophore is active as an antibacterial and anticoccidial agent.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: June 14, 1988
    Assignee: Pfizer Inc.
    Inventors: Walter P. Cullen, John R. Oscarson, Junsuke Tone, Hiroshi Maeda
  • Patent number: 4750482
    Abstract: The present invention concerns a novel water-insoluble, hydrophilic, pressure-sensitive adhesive that has a number of unique characteristics including being elastomeric and ultraconformable. This adhesive includes an irradiation cross-linked synthetic organic polymer having a three-dimensional matrix, and an adhesive plasticizer. The plasticizer includes a substantially non-volatile elasticizer. The adhesive is useful either as a coating on a supporting web-like substrate or as a self-supporting layer. Also provided are various articles made using the adhesive such as a bandage or ostomy device, a method of making the adhesive, and methods of using the adhesive.In one embodiment, the adhesive is electroconductive, and is useful for attaching an electrically conductive member of an electrode to a selected surface such as mammalian tissue. Also provided is an electrode having a layer of this adhesive, and a method of adhering this electrode to mammalian tissue.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: June 14, 1988
    Assignee: Pfizer Inc.
    Inventor: David L. Sieverding
  • Patent number: 4751297
    Abstract: A process for production of a 2-azetidinone-1-oxoacetate of the formula ##STR1## useful as an intermediate for preparation of 2-SR.sup.2 -substituted-2-penem-3-carboxylate andtibacterial agents;R is a conventional hydroxy protecting group, R.sup.1 is certain carboxy protecting groups and ##STR2## and m and n are each 0, 1 or 2; which comprises contacting a corresponding (2-oxo-1-axetidinyl)-N-2-hydroxyacetate ester of the formula ##STR3## with manganese dioxide.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: June 14, 1988
    Assignee: Pfizer Inc.
    Inventors: Berkeley W. Cue, Jr., Donald K. Pirie
  • Patent number: 4749687
    Abstract: A series of novel peptide and polypeptide derivatives containing statine or derivatives thereof (e.g., aminostatine, cyclostatine) are disclosed that are useful for inhibiting the angiotensinogen-cleaving action of the enzyme renin. Of particular interest are compounds possessing the N-terminal sequence -Pro-Phe-His-Sta-Lys with the terminal proline nitrogen bonded to an amino-protecting acyl moiety or compounds possessing the N-terminal sequence -R-Phe-His-Sta-Lys- wherein R represents an amino protecting acyl group.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: June 7, 1988
    Assignee: Pfizer Inc.
    Inventors: Jasit S. Bindra, Edward F. Kleinman, Robert L. Rosati