Patents Assigned to Astra Aktiebolag
  • Patent number: 5679713
    Abstract: The present invention relates to the use of carbachol and other cholinergic substances for the treatment of keratoconjunctivitis sicca.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: October 21, 1997
    Assignee: Astra Aktiebolag
    Inventor: Rudolph Wolfgang Hahnenberger
  • Patent number: 5674861
    Abstract: Disclosed are the 22R and 22S epimers of compounds of the formula ##STR1## wherein X.sub.1 represents a fluorine atom, and X.sub.2 represents a hydrogen atom or a fluorine atom. Also disclosed are processes for the preparation of the compounds, pharmaceutical compositions comprising the compounds and methods of treatment of inflammatory and allergic conditions employing the compounds.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: October 7, 1997
    Assignee: Astra Aktiebolag
    Inventors: Paul Andersson, Bengt Axelsson, Ralph Brattsand, Arne Thalen
  • Patent number: 5674860
    Abstract: Effective amounts of formoterol and/or a physiologically acceptable salt and/or solvate thereof and budesonide are used in combination for simultaneous, sequential or separate administration by inhalation in the treatment of an inflammatory respiratory disorder, such as asthma.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: October 7, 1997
    Assignee: Astra Aktiebolag
    Inventors: Christer Carl Gustav Carling, Jan William Trofast
  • Patent number: 5667385
    Abstract: The invention relates to a method for treating the surface of surgical implants made of titanium or a titanium alloy, for instance dental implants, before implantation in bone tissue. The method results in a roughened exterior implant surface and at the same time a cleaning action is obtained, should there be any contaminants. The surface is blasted with particles of an oxide of titanium, preferably titanium dioxide. In this way an implant having an improved retention in bone tissue is obtained. The Blasted implant is used in a method for treating toothlessness.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: September 16, 1997
    Assignee: Astra Aktiebolag
    Inventor: Stig Hansson
  • Patent number: 5661183
    Abstract: The present invention relates to novel derivatives of 3-hydroxyanthranilic acid, 3-HANA of general formula (I), wherein R.sup.1 and R.sup.2 are the same or different and selected from H and alkyl; X is selected from alkylthio, arylthio, aryloxy, halogen and cyano; R.sup.3, R.sup.4 are the same or different and selected from halogen, methyl, fluoroalkyl, cyano and Z-R.sup.5 wherein Z is selected from CH.sub.n, NH.sub.m, O, S, SO.sub.2 and CO wherein n=1 or 2; m=0 or 1 and R.sup.5 is selected from alkyl, aryl and fluoroalkyl; or R.sup.3 and R.sup.4 together form a saturated or unsaturated ring system Y-V-Z wherein Y and Z, independently of each other, are as defined for Z above and V is selected from C.sub.1 -C.sub.3 alkylene or alkenylene, --N.dbd., --N.dbd.N-- and (a), wherein R.sub.7 .dbd.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: August 26, 1997
    Assignees: The University of Maryland, Astra Aktiebolag
    Inventors: Susanna Karin Maria Bjork, Birgitta Kristina Gotthammar, Mats Torbjorn Linderberg, Johan Per Luthman, Kerstin Margareta Irma Persson, Robert Schwarcz
  • Patent number: 5660837
    Abstract: The present invention is related to a pharmaceutical formulation which is an oil-in-water emulsion for parenteral and oral use which comprises(i) an emulsion-stabilizing surface active drug in high concentration;(ii) optionally a pharmacologically inert oil;(iii) optionally a surfactant;(iv) water or a buffer; and(v) an agent giving isotonicity to the final formulation;the use of and a process for preparation of the formulation.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 26, 1997
    Assignee: Astra Aktiebolag
    Inventor: Stefan Lundquist
  • Patent number: 5660169
    Abstract: The invention relates to a disposable breath-actuated inhaler comprising a housing forming an air flow path open at both ends, wherein one end forms an air inlet and one end forms an air outlet. The housing includes a compartment for storing a pharmaceutical powder to be inhaled which is located close to the air inlet and covered by a thin foil which seals the compartment in an airtight way. The foil can be removed from the compartment from outside the housing. Additionally, the housing has a constriction adjacent the powder compartment such that a turbulent air stream will be obtained at the constriction upon inhalation which will lift the powder out from the compartment and mix the powder into the air stream.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: August 26, 1997
    Assignee: Astra Aktiebolag
    Inventors: Goran Anders Vilhelm Kallstrand, Per-Gunnar Nilsson
  • Patent number: 5659071
    Abstract: A process for the production of guanidino protected .omega.-aminoalkyl guanidines comprising reacting a diamine selectively at one amino group with an alkoxycarbonyl or aralkoxycarbonyl protected electrophilic guanylation reagent. The process of the invention is general and may be performed efficiently in one step yielding a product with high purity and in useful yields. The invention further refers to some compounds that are novel per se and to some novel compounds useful in the process of the invention.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: August 19, 1997
    Assignee: Astra Aktiebolag
    Inventors: Jan-Erik Nystrom, Hans Fredrik Sjobom
  • Patent number: 5656657
    Abstract: 3-amino-5-carbonylchromans, as well as enantiomers and salts thereof are disclosed. Pharmaceutical compositions containing the compounds as active ingredients are also disclosed. The compounds are useful in the treatment of 5-hydroxytryptamine-mediated disorders of the central nervous system.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 12, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5656658
    Abstract: A method is disclosed for the treatment of anxiety by the administration of 3-amino-5-carbamoyl-chromans and 8-fluoro-3-amino-5-carbamoylchromans or enantiomers or salts thereof.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 12, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5650443
    Abstract: 2-amino-N-(1,2-diphenyl-1-methylethyl) acetamide (remacemide) or a phamaceutically acceptable salt thereof, and L-dopa, are useful in conjunction with one another in the treatment of Parkinson's disease. Pharmaceutical products and formulations comprising these active agents are provided.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 22, 1997
    Assignee: Astra Aktiebolag
    Inventors: Peter Johnson, Barry E. Watkins, Eric W. Harris
  • Patent number: 5650524
    Abstract: A process for preparing (R)-3-amino-5-methoxychroman is provided. The process comprises the steps of (i) dissolving racemic 3-amino-5-methoxychroman and L(+)tartaric acid in water to form the tartrate salt; (ii) heating the solution until a clear solution is obtained; and (iii) crystallizing the tartrate salt by allowing the solution to cool to room temperature.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 22, 1997
    Assignee: Astra Aktiebolag
    Inventor: Lars-Gunnar Larsson
  • Patent number: 5650538
    Abstract: New crystalline organic salts of N,N'-diacetyl cystine with immunomodulating effect, processes for their preparation, pharmaceutical compositions containing them and methods of their pharmacological use.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 22, 1997
    Assignee: Astra Aktiebolag
    Inventors: Edib Jakupovic, Eric Nils Gunnar Teneberg
  • Patent number: 5648498
    Abstract: A process is described for the preparation of 4-Methyl-5-(2-Chloroalkyl)-thiazole wherein the alkyl ranges from C.sub.2 -C.sub.5, by providing the steps of either a) converting the 3-thiocyanato-5-chloro-2-alkanone into 2-chloro-4-methyl-5-(2-chloroalkyl)-thiazole by gaseous hydrochloric acid in an organic solvent and hydrogenating the compound in the presence of a metal catalyst in an organic solvent, or b) reacting 3-thiocyanato-5-choro-2-alkanone with aqueous mineral acid and treating the thiazole obtained with a halogenating agent, and hydrogenating the 2-chloro-4-methyl-5-(2-chloroalkyl)-thiazole in an organic solvent in presence of a metal catalyst.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: July 15, 1997
    Assignee: Astra Aktiebolag
    Inventors: Endre Palosi, Dezso Korbonits, Erzsebet Molnar nee Bako, Ida Szvoboda nee Kanzel, Gergely Heja, Pal Kiss, Csaba Gonczi, Ferenc Sperber, Csaba Huszar, Gyorgy Mihalovics, Attila Nemeth, Mihaly Sut, Karol Gyure, Istvan Bone, Ferenc Morasz, Laszlo Ledniczky, Erzsebet Szabo nee Kardos, Peter Gyri, Erzsebet Szalay, Karoly Ban, Ildiko Buttkai, Arpad Kvari, Sandor Garaczy
  • Patent number: 5646309
    Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are employed as intermediates in the synthesis of aminochroman compounds useful in the treatment of CNS disorders.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 8, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5645602
    Abstract: The invention relates to a joint prosthesis for permanent anchorage in the bone tissue of one of the articulatory parts of a joint in a human body, in particular the femur side of a knee joint, primarily intended to be fitted in one operation only. The prosthesis comprises an attachment part (1), intended to be anchored in the human bone tissue by means of a fixture (8), and an articulation element (2) adapted to fit the attachment part (1). The articulation element is attached to the attachment part by a combination of complementary shapes (27, 28, 33, 34) and snap-action locking means (31).
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: July 8, 1997
    Assignee: Astra Aktiebolag
    Inventors: Bjorn Albrektsson, Lars Valter Carlsson, Carl Magnus Gosta Jacobsson, Tord Valter Rostlund, Stig Gosta Wennberg
  • Patent number: 5643602
    Abstract: An oral pharmaceutical composition is described for targeted slow release in the treatment of inflammatory bowel diseases. Also described are pharmaceutical compositions for peroral treatment targeted to different areas of the intestinal tract afflicted by ulcerative colitis and certain aspects of Crohn's disease.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: July 1, 1997
    Assignee: Astra Aktiebolag
    Inventor: Jan Ulmius
  • Patent number: 5641807
    Abstract: A method is disclosed for the treatment of depression by the administration of 3-amino-5-carbamoylchromans and 8-fluoro-3-amino-5-carbamoylchromans or enantiomers or salts thereof.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: June 24, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: 5639772
    Abstract: 3-amino-5-aryl- and 5-heteroarylchromans, as well as enantiomers and salts thereof are disclosed. Pharmaceutical compositions containing the compounds as active ingredients are also disclosed. The compounds are useful in the treatment of 5-hydroxytryptamine-mediated disorders of the central nervous system.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: June 17, 1997
    Assignee: Astra Aktiebolag
    Inventors: Eva Maria Hammarberg, Lars George Johansson, Lars-Gunnar Larsson, Rolf Noreen, Lucy Anna Renyi, Svante Bertil Ross, Daniel Dungan Sohn, Bjorn Eric Svensson, Seth-Olov Thorberg
  • Patent number: D381416
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: July 22, 1997
    Assignee: Astra Aktiebolag
    Inventors: Ulf Henri Hansson, Roger M.ang.rten Lassing, Richard Lindahl