Patents by Inventor John Y. L. Thunberg

John Y. L. Thunberg 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).

  • Oligosaccharides having selective anticoagulation activity
    Patent number: 4496550
    Abstract: The invention relates to an oligosaccharide which contains 4-8 monosaccharide units and which is characterized in that it contains at least one glucosamine unit which is 3-0-sulfated, and at least one additional glucosamine unit, whereby these units are linked via an intermediate monosaccharide unit, which is bound to the reducing end of the 3-0-sulfated glucosamine unit. The invention further relates to a pharmaceutical composition containing one or more such oligosaccharides, and to a process for the preparation of these oligosaccharides.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: January 29, 1985
    Assignee: KabiVitrum AB
    Inventors: Ulf P. F. Lindahl, Gudrun E. Backstrom, John Y. L. Thunberg
  • Heparin fragments having selective anticoagulation activity
    Patent number: 4303651
    Abstract: Heparin fragments having selective anticoagulation activity having 14-18 sugar units, the disaccharide unit L-iduronosyl-2-O-sulphate-N-sulpho-U-glucosamine-6-O-sulphate being the main component, and where unsulphated L-iduronic acid is in a position situated 3-5 sugar units from the unreducing terminal. Pharmaceutical compositions containing such heparin fragments. Processes for the preparation of the heparin fragments.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: December 1, 1981
    Assignee: Kabi AB
    Inventors: Ulf P. F. Lindahl, Gudrun E. Backstrom, John Y. L. Thunberg, Lars-Ake Fransson, Lars-Olov Andersson, Erik Y. Holmer, Inga H. Sandberg, Ewa G. Soderstrom