Patents by Inventor Knut Gunnar Olsson

Knut Gunnar Olsson 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).

  • Pyrudyl and pyrimidylpiperazine derivatives
    Patent number: 6326371
    Abstract: The present invention relates to a method for treating a patient suffering from a mental disorder, comprising administering to the patient an effective 5-HT1A agonistic and 5-HT2 antagonistic amount of a compound having the formula (I): or a pharmacologically active salt thereof.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: December 4, 2001
    Assignee: Pharmacia Aktiebolag
    Inventors: Lisbeth Abramo, Torbjörn Lundstedt, Curt Nordvi, Knut Gunnar Olsson, Martin Brodszki
  • Pyridyl-and pyrimidylpiperazine derivatives
    Patent number: 5652240
    Abstract: The present invention concerns compounds of the formula (I) ##STR1## wherein Ar are the same or different and are a phenyl group, optionally substituted with fluorine, or a pyrid-4-yl group, R.sub.1 and R.sub.2 are the same or different and are selected from hydrogen or lower alkyl, n is 2 or 3, X is nitrogen or methine and A is pyrimid-2-yl or a substituted or unsubstituted pyridyl group. The compounds are useful for treating mental disorders.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: July 29, 1997
    Assignee: Pharmacia Aktiebolag
    Inventors: Lisbeth Abramo, Torbjorn Lundstedt, Curt Nordvi, Knut Gunnar Olsson, Martin Brodszki
  • Piperidino-butyrophenones
    Patent number: 4070473
    Abstract: Novel gamma-(4-lower-alkyl-4-lower-alkoxypiperidino)-p-fluorobutyrophenones and acid addition salts thereof, useful as central depressants, e.g., neuroleptics (antipsychotics). Pharmaceutical compositions thereof and method of treating therewith.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: January 24, 1978
    Assignee: AB Ferrosan
    Inventors: Sven Eric Harry Hernestam, Bengt Eric Sigvard Kjellberg, Knut Gunnar Olsson