Patents by Inventor Anders K. K. Bjork

Anders K. K. Bjork has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Novel 1-piperazinecarboxamide derivatives
    Patent number: 4935419
    Abstract: A series of 1-piperazinecarboxamide derivatives of the following formula: ##STR1## The compounds of the present invention are neuropharmacological agents intended for the treatment of mental disorders, such as psychoses and depression.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: June 19, 1990
    Inventors: Anders K. K. Bjork, Knut G. Olsson, Aina L. Abramo, Erik G. Christensson, Bengt K. R. Gustafsson, Tomas Fex
  • Diphenylbutyl-piperazinecarboxamides to treat pain
    Patent number: 4447433
    Abstract: Compounds having the general formula ##STR1## as herein defined and pharmaceutically acceptable acid addition salts thereof. Pharmaceutical compositions containing said compounds. Methods of treatment of humans and animals by such compounds and compositions.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: May 8, 1984
    Assignee: AB Ferrosan
    Inventors: Anders K. K. Bjork, Knut G. Olsson, Aina L. Abramo, Erik G. Christensson
  • Diphenylbutyl-piperazinecarboxamides in pharmaceutical compositions and methods
    Patent number: 4385057
    Abstract: Compounds having the general formula ##STR1## as herein defined and pharmaceutically acceptable acid addition salts thereof. Pharmaceutical compositions containing said compounds. Methods of treatment of humans and animals by such compounds and compositions.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: May 24, 1983
    Assignee: AB Ferrosan
    Inventors: Anders K. K. Bjork, Knut G. Olsson, Aina L. Abramo, Erik G. Christensson
  • Aryl ethers of N-alkyl-piperidines and acid addition salts thereof
    Patent number: 4366162
    Abstract: Aryl ethers of N-alkyl-piperdines having the formula ##STR1## wherein R.sub.1 represents hydrogen, halogen including F, Cl and Br, a lower alkanoyl group (e.g. alkanoyl of up to five carbon atoms), an alkenyl group (having three to five carbon atoms) or phenoxy, R.sub.2 represents hydrogen, halogen including F, Cl and Br, --CN group, a lower alkoxy group (e.g. alkoxy of up to five carbon atoms), a lower alkanoyl group (e.g. alkanoyl of up to five carbon atoms), an alkenyloxy or alkynyloxy group (having three to five carbon atoms) or a lower alkoxycarbonyl group (e.g. alkoxycarbonyl of up to five carbon atoms), R.sub.3 and R.sub.4 independently represent hydrogen, halogen including F, Cl and Br, a --CF.sub.3 group, a lower alkyl group (e.g. alkyl of up to five carbon atoms) or a lower alkoxy group (e.g. alkoxy of up to five carbon atoms), R.sub.5 represents hydrogen or an acyl group with 2-19 carbon atoms and n=3 or 4, and pharmaceutically acceptable acid addition salts.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: December 28, 1982
    Assignee: AB Ferrosan
    Inventors: Anders K. K. Bjork, Aina L. Abramo, Bengt E. S. Kjellberg
  • Diphenylbutyl-piperzinecarboxamides
    Patent number: 4308387
    Abstract: Compounds having the general formula ##STR1## as herein defined and pharmaceutically acceptable acid addition salts thereof. Pharmaceutical compositions containing said compounds. Methods of treatment of humans and animals by such compounds and compositions.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: December 29, 1981
    Assignee: AB Ferrosan
    Inventors: Anders K. K. Bjork, Knut G. Olsson, Aina L. Abramo, Erik G. Christensson
  • Diarylbutyl octahydropyrazinopyrimidinones and methods of medical treatment using them
    Patent number: 4183933
    Abstract: 2,3,4,7,8,9-Substituted octahydropyrazinopyrimidinones and acid addition salts thereof. A process for the preparation of said compounds. A pharmaceutical composition comprising such a compound and a conventional carrier. A process for the preparation of said composition. Method of medical treatment of human beings and animals using such compounds.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: January 15, 1980
    Assignee: AB Ferrosan
    Inventors: Anders K. K. Bjork, Aina L. Abramo, Sven E. H. Hernestam, Bengt E. S. Kjellberg