Patents by Inventor Peter Leander

Peter Leander 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).

  • Contrast agents for MRI using a manganese compound and kojic acid
    Patent number: 5985245
    Abstract: There is provided a contrast medium composition comprising: (a) a first contrast agent comprising a physiologically tolerable manganese compound, a physiologically tolerable reducing compound containing an .alpha.-hydroxy ketone group, or salt thereof, having a manganese concentration of at least 0.3 mM or being in a dosage unit form containing at least 300 .mu.mol manganese, together with (b) a second contrast agent. Such compositions have been found to be particularly suited to imaging of the liver.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: November 16, 1999
    Assignee: Nycomed Imaging AS
    Inventors: Klaes Golman, Goran Pettersson, Arne Berg, Jo Klaveness, P.ang.l Rongved, Peter Leander, Ib Leunbach
  • Composition and method of MRI using both a positive and a negative contrast agent
    Patent number: 5863519
    Abstract: There is provided a contrast medium composition comprising: (a) a first contrast agent comprising a physiologically tolerable manganese compound together with an uptake promoter, having a manganese concentration of at least 0.3 mM or being in a dosage unit form containing at least 300 .mu.mol manganese, wherein the uptake promoter comprises a physiologically tolerable reducing compound containing an .alpha.-hydroxy ketone group or a physiologically tolerable acid containing .alpha.- and/or .beta.- hydroxy or amino groups, or a salt thereof, and/or vitamin D; together with (b) a second contrast agent.Such compositions are particularly suitable for imaging of the liver.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: January 26, 1999
    Assignee: Nycomed Imaging AS
    Inventors: Klaes Golman, Goran Pettersson, Arne Berg, Jo Klaveness, P.ang.l Rongved, Peter Leander, Ib Leunbach, Wolfgang Gunther
  • Contrast medium for magnetic resonance imaging using physiologically tolerable manganese compound
    Patent number: 5716598
    Abstract: There is provided a contrast medium composition for magnetic resonance imaging comprising a physiologically tolerable manganese compound, a physiologically tolerable reducing compound containing an .alpha.-hydroxy ketone group, or salt thereof and a physiologically tolerable carrier or excipient, having a manganese concentration of at least 0.3 mM or being in a dosage unit form containing at least 300 .mu.mol manganese. Such compositions are particularly suitable for imaging of the liver.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 10, 1998
    Assignee: Nycomed Imaging AS
    Inventors: Klaes Golman, Goran Pettersson, Arne Berg, Jo Klaveness, Pal Rongved, Peter Leander