Patents Assigned to Astra Aktiebolag
  • Patent number: 5900428
    Abstract: A method for the prophylaxis and treatment of MOF using certain angiotensin II type 1 receptor antagonists and a pharmaceutical preparation comprising these compounds.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: May 4, 1999
    Assignee: Astra Aktiebolag
    Inventors: Lars Fandriks, Anders Pettersson, Anders neman
  • Patent number: 5894070
    Abstract: The use of chitosan and a polysaccharide immobilized thereto selected from heparin, heparan sulphate, chondroitinsulphates and dextran sulphate for the manufacture of an agent capable of providing stimulated regeneration of hard tissue;a process for stimulating regeneration of hard tissue in connection with so called osseointegration; andimplant intended for integration into hard tissue, particularly bone tissue.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: April 13, 1999
    Assignee: Astra Aktiebolag
    Inventors: Hans-Arne Hansson, Gunilla Johansson-Ruden, Olle Larm
  • Patent number: 5888995
    Abstract: The invention concerns compounds of formula I ##STR1## in which R.sub.1 is hydrogen or a straight or branched hydrocarbon chain; R.sub.2 is hydrogen or a straight or branched hydrocarbon chain; R.sub.3 is acyl; X.sub.1 is hydrogen, fluorine or chlorine; and X.sub.2 is hydrogen, fluorine or chlorine. Also disclosed are processes for preparation of the compounds, pharmaceutical compositions containing them and methods employing the compounds in the treatment of inflammatory and allergic conditions.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: March 30, 1999
    Assignee: Astra Aktiebolag
    Inventors: Bengt Ingemar Axelsson, Ralph Lennart Brattsand, Leif Arne Kallstrom, Bror Arne Thalen
  • Patent number: 5887586
    Abstract: In a method for measuring a dose of a drug inhaled by an animal, the momentary concentration of the drug in an aerosol supplied to the animal and the momentary inhalation flow rate of the animal are determined. An inhaled partial dose is calculated from each determined inhalation flow rate value and a corresponding concentration value. The calculated inhaled partial doses are added to obtain the total dose inhaled by the animal.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: March 30, 1999
    Assignee: Astra Aktiebolag
    Inventors: Magnus Dahlback, Per-Olof Fagerstrom, Hans Marchner, Ola Nerbrink
  • Patent number: 5889021
    Abstract: The present invention relates to novel quinoline derivatives of the formula ##STR1## which inhibit exogenously or endogenously stimulated gastric acid secretion and thus can be used in the prevention and treatment of gastrointestinal inflammatory diseases.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: March 30, 1999
    Assignee: Astra Aktiebolag
    Inventor: Carl Ingemar Starke
  • Patent number: 5889050
    Abstract: New 3,3'-dithiobis(propionic acids) and esters thereof with immunomodulating effect, processes for their preparation, pharmaceutical compositions containing them and methods of their pharmacological use.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: March 30, 1999
    Assignee: Astra Aktiebolag
    Inventors: Carl-Magnus Alexander Andersson, Sten H.ang.kan Axel Bergstrand, Anders Rudolf Hallberg, Bengt Olof Sarnstrand, Per Anders Sigvard Tunek
  • Patent number: 5885985
    Abstract: Guanidine derivatives of formula I ##STR1## wherein R.sup.8 represents hydrogen, halogen, alkyl C1 to 6, nitro, trifluoromethyl, thioalkyl C1 to 6, hydroxy, alkoxy C1 to 6, or a group selected from --NR.sup.4 R.sup.5, --O(CH.sub.2).sub.p Q, --(CH.sub.2).sub.m OQ, --(CH.sub.2).sub.m NR.sup.1 R.sup.2, --O(CH.sub.2).sub.m NR.sup.1 R.sup.2, --NHCO(CH.sub.2).sub.m NH(CH.sub.2).sub.n Q or --(CH.sub.2).sub.p CONR.sup.1 R.sup.2, or R.sup.8 represents the group A--CO--B; R.sup.9 represents hydrogen, halogen, alkyl C1 to 6, nitro or trifluoromethyl;and R.sup.1, R.sup.2, R.sup.4, R.sup.5, n, m, p, Q, A, B, and W are as defined in the specification, are described together with processes for their manufacture and compositions containing them. Compounds of formula I are useful in therapy.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: March 23, 1999
    Assignee: Astra Aktiebolag
    Inventors: James E. Macdonald, Robert Gentile, Robert J. Murray
  • Patent number: 5883129
    Abstract: The present invention relates to novel derivatives of 3-hydroxyanthranilic acid, 3-HANA, of the general formula I ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and selected from H and alkyl; X and Y are the same or different and selected from alkoxy, aryloxy, alkyl, alkylthio, arylthio, fluoroalkyl, halogen, cyano, OCF.sub.3 and SCF.sub.3 with the proviso that the compound of formula I wherein R.sub.1 and R.sup.2 =H, X=Br and Y=Me is excluded;or a pharmaceutically acceptable salt thereof, methods and intermediates for their preparation, novel pharmaceutical compositions and the use thereof for inhibiting the enzyme 3-hydroxyanthranilate oxygenase, 3-HAO, responsible for the production of the endogenous neurotoxin quinolinic acid, QUIN.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: March 16, 1999
    Assignee: Astra Aktiebolag
    Inventors: Susanna Karin Maria Bjork, Birgitta Kristina Gotthammar, Mats Torbjorn Linderberg, Johan Per Luthman, Kerstin Margareta Irma Persson, Robert Schwarcz, Barry K. Carpenter
  • Patent number: 5881718
    Abstract: Valve intended to be used in particular in inhalation devices having a body, such as a spacer, the valve having a housing comprising an first part which is adapted to be mounted on an outlet opening of the body of the inhalation device, a second part on to which a mouthpiece or a face mask can be mounted, said first and second parts being provided with a first bore defining an inhalation channel, a first membrane provided in the inhalation channel and a second membrane, wherein the second part is provided with a second bore, said second bore defining the exhalation channel, the two channels being provided separated from one another and placed adjacent each other.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: March 16, 1999
    Assignee: Astra Aktiebolag
    Inventors: Preben Korntved Mortensen, Stig Waldorff
  • Patent number: 5883126
    Abstract: A method for the treatment of restenosis using certain cystine derivatives and a pharmaceutical preparation comprising these derivatives.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: March 16, 1999
    Assignee: Astra Aktiebolag
    Inventors: H.ang.kan Bergstrand, Knut Pettersson, Christer Westerlund
  • Patent number: 5877192
    Abstract: A method for treatment of gastric acid related diseases by inhibition of gastric acid secretion comprising administering to a mammal in need of treatment a therapeutically effective amount of the (-)-enantiomer of 5-methoxy-2-??(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl!sulfinyl!-1H-benz imidazole or a pharmaceutically acceptable salt thereof, so as to effect decreased interindividual variation in plasma levels upon administration. The use of the (-)-enantiomer of omeprazole to receive increased average plasma levels (AUC) upon administration of the same doses of the (-)-enantiomer of omeprazole compared to those of racemic omeprazole is also claimed, as well as an improved antisecretory effect and a better clinical effect.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: March 2, 1999
    Assignee: Astra Aktiebolag
    Inventors: Per Lindberg, Lars Weidolf
  • Patent number: 5874063
    Abstract: There are described finely divided particles of a pharmaceutical substance, wherein the substance when submitted to water vapor gives off heat of less than 1.2 Joules per gram, processes for their production and pharmaceutical formulations containing them.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: February 23, 1999
    Assignee: Astra Aktiebolag
    Inventors: Lars-Erik Briggner, Katarina Bystrom, Edib Jakupovic, Eva Trofast, Jan Trofast
  • Patent number: 5865012
    Abstract: The invention relates to a device for filling with high accuracy a finely divided powdered medicament having a particle size smaller than 10 .mu.m into cavities having a size corresponding to the volume of powder to be filled, wherein said device comprises oscillating and rotating means for breaking down aggregates formed in the finely divided powdered medicament and filling and for compacting it in said cavities. The invention also includes a method of filling with high accuracy of a finely divided powdered medicament having a particle size smaller than 10 .mu.m and to fill said finely divided powdered medicament into cavities, wherein the finely divided powdered medicament is transported and compacted in said cavities by oscillating and rotating means.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: February 2, 1999
    Assignee: Astra Aktiebolag
    Inventors: Henri Hansson, Jan Petersson, Peter Claussnitzer
  • Patent number: 5856346
    Abstract: Compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, chloro, bromo, nitro, cyano, trifluoromethyl, and R.sub.3 and R.sub.4 are independently selected from straight or branched lower (1-5 carbon atoms) alkyl groups, and including all optical isomers, provided that when R.sub.3 is methyl and R.sub.4 is tert.-butyl, then R.sub.1 /R.sub.2 are not hydrogen/hydrogen, hydrogen/2'-trifluormethyl, 2'-chloro/3'-chloro, and when R.sub.3 is methyl and R.sub.1 /R.sub.2 is hydrogen/3'-nitro, then R.sub.4 are not methyl, ethyl, propyl, iso-propyl, tert.-butyl, processes for their preparation, pharmaceutical preparations containing them and the use of the compounds in lowering the blood pressure.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: January 5, 1999
    Assignee: Astra Aktiebolag
    Inventors: Kjell Hjalmar Andersson, Margareta Nordlander, Rolf Christer Westerlund
  • Patent number: 5856307
    Abstract: The invention relates to compounds of the formulaA.sup.1 --A.sup.2 --NH--(CH.sub.2).sub.n --B Formula IandA.sup.1 --A.sup.2 --NH--(CH.sub.2).sub.n --B--D Formula Vas well as stereoisomers and physiologically acceptable salts thereof which act as competitive inhibitors of trypsin-like serine proteases, particularly kininogenases. The invention further relates to pharmaceutical compositions containing the compounds as active ingredients and the use of the compounds as kininogenase inhibitors and in the treatment of diseases related to kinin formation.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 5, 1999
    Assignee: Astra Aktiebolag
    Inventors: Karl Thomas Antonsson, Ruth Elvy Bylund, Nils David Gustafsson, Nils Olov Ingemar Nilsson
  • Patent number: 5853518
    Abstract: A process for manufacturing a catheter for insertion into a body cavity, for instance a catheter used for insertion into the urethra. The catheter has a tip portion provided with one or several drainage or flushing openings adjacent to the free end which is to be inserted into the body cavity. The outside of the catheter is provided with a coating. The process includes injection-molding a separate tip portion of the catheter. The tip portion includes an inner lumen and the drainage/flushing openings. The inner and outer diameters of the tip correspond to those of a standard tube. An end of a standard tube and an end of the tip portion are formed to conform to each other. These formed ends are then joined in a joining operation. The coating is applied to the standard tube before the joining operation is performed.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: December 29, 1998
    Assignee: Astra Aktiebolag
    Inventor: Jan Utas
  • Patent number: 5849921
    Abstract: Angiotensin-II antagonists of the formula ##STR1## wherein R.sub.1 is, other than hydrogen and, inter alia, halogen, lower alkyl or cycloalkyl; R.sub.2 is, inter alia, optionally substituted benzimidazol-2-yl, 5,6,7,8-tetrahydro-imidazo?1,2-a!pyridin-2-yl, butanesultam-1-yl, imidazol-4-yl, and tetrahydobenzimidazol-2-yl; R.sub.3 is, inter alia, lower alkyl; and, R.sub.4 is an acidic group, such as carboxyl or tetrazolyl. An exemplary compound is: 4'-?(2-ethyl-4-methyl-6-(5,6,7,8-tetrahydroimidazo?1,2-a!pyridin-2-yl)-ben zimidazol-1-yl)-methyl!-biphenyl-2-carboxylic acid.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 15, 1998
    Assignee: Astra Aktiebolag
    Inventors: Robin Bernad Boar, Alan John Cross, Duncan Alastair Gray, Richard Alfred Green
  • Patent number: 5843971
    Abstract: The present invention relates to novel heterocyclic compounds having the general formula (1) ##STR1## wherein: X.sub.1 and X.sub.2 are independently O, S or Se;Y.sub.1 and Y.sub.2 are independently C or N with the proviso that at least one of Y.sub.1 and Y.sub.2 is N;Y.sub.3 and Y.sub.4 are independently C or N with the proviso that at least one of Y.sub.3 and Y.sub.4 is N;R.sub.1 and R.sub.2 each represent one or more groups independently selected from H, lower alkyl, lower alkoxy-lower alkyl, hydroxy-lower alkyl, lower acyloxy-lower alkyl or CF.sub.3 ;and A is ##STR2## geometrical and optical isomers and racemates thereof where such isomers exist, as well as pharmaceutically acceptable acid addition salts thereof and solvates thereof;having therapeutic activity, processes and intermediates for their preparation, pharmaceutical formulations containing said compounds and the medicinal use of said compounds.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: December 1, 1998
    Assignee: Astra Aktiebolag
    Inventors: Robin Bernard Boar, Duncan Alastair Gray, Dennis Mark O'Shea
  • Patent number: D403396
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: December 29, 1998
    Assignee: Astra Aktiebolag
    Inventors: Jan Lundbom, .ANG.sa Naslund
  • Patent number: D408910
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: April 27, 1999
    Assignee: Astra Aktiebolag
    Inventors: Jan Lundbom, Asa Naslund