Patents by Inventor Rolf Christer Westerlund

Rolf Christer Westerlund 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).

  • Short-acting dihydropyridines
    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
  • Pharmaceutical emulsion
    Patent number: 5739152
    Abstract: A pharmaceutical emulsion for intravenous administration is disclosed which comprisesa) a short acting dihydropyridine compound;b) a lipid phase;c) an emulsifier andd) water or a buffer.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: April 14, 1998
    Assignee: Astra Aktiebolag
    Inventors: Kjell Hjalmar Andersson, Eva Kristina Byrod, Anna-Carin Hansson, Margareta Nordlander, Rolf Christer Westerlund