Patents by Inventor John Baldas

John Baldas 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).

  • Preparation of 99m Tc radiopharmaceuticals
    Patent number: 5011916
    Abstract: Compounds of the formula I:R.sup.+[.sup.99m TcNX.sub.4 ].sup.- Iwherein R.sup.30 represents a cation and X represents a halo group, are prepared by reaction with an azide compound in the presence of a hydrohalic acid. The compounds are useful in production of .sup.99m Tc-labelled radio-pharmaceuticals by reaction with ligands and monoclonal antibodies or antibody fractions.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: April 30, 1991
    Assignee: Commonwealth of Australia
    Inventors: John Bonnyman, John Baldas
  • Preparation of 99m Tc radiopharmaceuticals
    Patent number: 4923969
    Abstract: Compounds of the formula I:R.sup.+ [.sup.99m TcNX.sub.4 ].sup.- Iwherein R.sup.+ represents a cation and X represents a halo group, are prepared by reaction with an azide compound in the presence of a hydrohalic acid. The compounds are useful in production of .sup.99m Tc-labelled radio-pharmaceuticals by reaction with ligands and monoclonal antibodies or antibody fractions.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: May 8, 1990
    Assignee: The Commonwealth of Australia
    Inventors: John Bonnyman, John Baldas
  • Preparation of .sup.99m Tc radiopharmaceuticals
    Patent number: 4851515
    Abstract: Compounds of the formula I:R+[.sup.99m TcNX.sub.4 ]- Iwherein R+ represents a cation and X represents a halo group, are prepared by reaction with an azide compound in the presence of a hydrohalic acid. The compounds are useful in production of .sup.99m Tc-labelled radio- pharmaceuticals by reaction with ligands and monoclonal antibodies or antibody fractions.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: July 25, 1989
    Assignee: The Commonwealth of Australia
    Inventors: John Bonnyman, John Baldas