Patents by Inventor Ronald M. Baldwin

Ronald M. Baldwin 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).

  • Hydrocarbylphenyl diaminodithiol radionuclide complexes and their use in imaging
    Patent number: 5080884
    Abstract: An agent for imaging organs using a radioactive complex of a radioactive metal with a benzene ring having two 2-mercapto-2-methylpropylamino substituents where one of these mercapto substituents is substituted with a hydrocarbyl group.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: January 14, 1992
    Assignee: Medi-Physics, Inc.
    Inventors: William J. McBride, Ronald M. Baldwin, Janice M. Kerr, Lisa M. Schultze, Nilda Salazar, James M. Chinitz
  • Hydrocarbylphenyl diaminodithiol derivatives
    Patent number: 5026913
    Abstract: An agent for imaging organs using a radioactive complex of a radioactive metal with a benzene ring having two 2-mercapto-2-methylpropylamino substitutents where one of these mercapto substituents is substituted with a hydrocarbyl group.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: June 25, 1991
    Assignee: Medi-Physics, Inc.
    Inventors: William J. McBride, Ronald M. Baldwin, Janice M. Kerr, Lisa M. Schultze, Nilda Salazar
  • Amines useful as brain imaging agents
    Patent number: 4360511
    Abstract: Certain radioiodine containing amines useful as brain imaging agents are disclosed. The compounds of the invention are represented by the formula ##STR1## wherein I is a radioisotope of iodine with I-123 being preferred, R is lower alkyl or halogen, R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of hydrogen and lower alkyl, R.sub.3 and R.sub.4 are the same or different and are selected from the group consisting of hydrogen, alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl and substituted carbamoyl methyl or R.sub.3 and R.sub.4 taken together with the nitrogen to which they are attached form a 5- or 6-membered ring which may be substituted with one or more lower alkyl groups, x is 0 to 4, y is 0 to 3 and z is 0 or 1 and pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: November 23, 1982
    Assignee: Medi-Physics, Inc.
    Inventors: Ronald M. Baldwin, Tz-Hong Lin, Harry S. Winchell
  • Amides useful as brain imaging agents
    Patent number: 4279887
    Abstract: Certain radioiodine containing amides useful as brain imaging agents are disclosed. The compounds of the subject invention are represented by the formula ##STR1## wherein I is a radioisotope of iodine with I-123 being preferred, R.sub.1 and R.sub.2 are the same or different and are selected from the grooup consisting of hydrogen, hydroxy, alkyl, aryl, substituted aryl, aralkyl, anilino and carbamoylmethyl or R.sub.1 and R.sub.2 taken together with the nitrogen to which they are attached form a 5- or 6-membered ring.
    Type: Grant
    Filed: November 29, 1978
    Date of Patent: July 21, 1981
    Assignee: Medi-Physics, Inc.
    Inventors: Ronald M. Baldwin, Tz-Hong Lin, Harry S. Winchell