Patents by Inventor Torsten Rune Perklev

Torsten Rune Perklev 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).

  • Medicinal compositions and methods of use involving phosphoric acid esters
    Patent number: 3991187
    Abstract: Novel symmetrical secondary phosphoric acid esters having the general formula ##SPC1##Wherein the substituent R is positioned in meta or para position relative to the phosphoric acid ester group; processes for the preparation of said esters; and compositions containing said esters. The esters are i.a. useful as selective inhibitors of prostaglandins and compounds with prostaglandin activities. They also selectively antagonize the slow reacting substance (SRS).
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: November 9, 1976
    Assignee: Aktiebolaget Leo
    Inventors: Knut Bertil Hogberg, Hans Jacob Fex, B. Goran Fredholm, Torsten Rune Perklev, Sten Gunnar Veige
  • Secondary phosphoric acid esters
    Patent number: RE29202
    Abstract: Novel symmetrical secondary phosphoric acid esters having the general formula ##STR1## wherein the substituent R is positioned in meta or para position relative to the phosphoric acid ester group; processes for the preparation of said esters; and compositions containing said esters. The esters are i.a. useful as selective inhibitors of prostaglandins and compounds with prostaglandin activities. They also selectively antagonize the slow reacting substance (SRS).
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: May 3, 1977
    Assignee: Aktiebolaget Leo
    Inventors: Knut Bertil Hogberg, Hans Jacob Fex, Bo Goran Fredholm, Torsten Rune Perklev, Sten Gunnar Veige