Patents by Inventor Otto A. Gansow

Otto A. Gansow 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).

  • Patent number: 5434287
    Abstract: The subject matter of the present invention relates to bifunctional cyclohexyl DPTA ligands and methods for utilizing these compounds.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: July 18, 1995
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Otto A. Gansow, Martin W. Brechbiel
  • Patent number: 5428154
    Abstract: The invention is a chelate of formula I: ##STR1## wherein R.sub.1-4 is --CH.sub.2 COOH;n is 1 to 5;X is a member selected from the group consisting of--NO.sub.2,--NH.sub.2,--NCS,--NHCOCH.sub.2 --Z, with Z being a member selected from the group consisting of Br and I,--COOH; and--OCH.sub.2 OOCH;and M is a metal ion selected from the group of elements consisting ofBi, Pb, Y, Cd, Hg, Al, Th, Sr, and Lanthanides.The invention also includes a chelate, wherein M is a copper ion and n is an integer from 2 to 5. The invention includes chelate conjugates of formula I and ligand conjugates of formula II: ##STR2## The invention also includes methods to use these compounds for treatment of cellular disorders and for diagnostic tests.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: June 27, 1995
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Otto A. Gansow, Martin W. Brechbiel, Michael A. Magerstadt
  • Patent number: 5246692
    Abstract: New polysubstituted diethylenetriaminepentaacetic acid chelates and protein conjugates of the same are described together with the methods of preparing such compounds. A method of delivering radiolabelled compound of the present invention to a target site while minimizing the distribution of the compound to non-targeted organs or tissues is also disclosed.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: September 21, 1993
    Assignee: The United States of America as represented by the Secretary of Health and Human Services
    Inventors: Otto A. Gansow, Martin W. Brechbiel
  • Patent number: 5124471
    Abstract: The subject matter of the present invention relates to bifunctional cyclohexyl DPTA ligands and methods for utilizing these compounds.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: June 23, 1992
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Otto A. Gansow, Martin W. Brechbiel
  • Patent number: 5099069
    Abstract: New polysubstituted diethylenetriaminepentaacetic acid chelates and protein conjugates of the same are described together with the methods of preparing such compounds. A method of delivering radiolabelled compound of the present invention to a target site while minimizing the distribution of the compound to non-targeted organs or tissues is also disclosed.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: March 24, 1992
    Inventors: Otto A. Gansow, Martin W. Brechbiel
  • Patent number: 4923985
    Abstract: A process for synthesizing a 12 membered ring tetraaza macromolecule comprising. The process involves condensing an amide of ethylene diamine having a general formula A: ##STR1## wherein n is an integer from 1 to 5 and w is a member selected from the group consisting of --NO.sub.2, --NH.sub.2, --NCS, --COOH, --OCH.sub.2 OOCH.sub.3, --NCOCH.sub.2 --Z with Z being a member selected from the group consisting of Br and I with a nitrogen blocked active ester of a general formula B: ##STR2## wherein PG is an amino protecting group and E is a leaving group.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: May 8, 1990
    Assignee: The United States of America as represented by the Department of Health & Human Services
    Inventors: Otto A. Gansow, Krishan Kumar
  • Patent number: 4831175
    Abstract: New polysubstituted diethylenetriaminepentaacetic acid chelates and protein conjugates of the same are described together with the methods of preparing such compounds. A method of delivering radiolabelled compound of the present invention to a target site while minimizing the distribution of the compound to non-targeted organs or tissues is also disclosed.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: May 16, 1989
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Otto A. Gansow, Martin W. Brechbiel
  • Patent number: 4824986
    Abstract: A method of forming a novel metal chelate protein conjugate is described. Also described are metal chelates and precursor compounds to the metal chelates. The novel metal chelate protein conjugates are particularly useful in the diagnostic imaging of tumors and in tumor therapy.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: April 25, 1989
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventor: Otto Gansow
  • Patent number: 4472509
    Abstract: Methods of manufacturing and purifying metal chelate conjugated monoclonal antibodies are described. The chelated metal may be one which emits alpha, beta or gamma radiation, or positrons. Alternatively, the metal can be one which is fluorogenic or paramagnetic. The conjugates are suited for diagnostic and therapeutic uses.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: September 18, 1984
    Inventors: Otto A. Gansow, Mette Strand
  • Patent number: 4454106
    Abstract: Therapeutic and diagnostic methods employing metal chelate conjugated monoclonal antibodies are described. Metals employed in therapeutic conjugated antibodies include alpha particle, beta particle or Auger electron emitting isotopes. Diagnostic methods may be either in vivo or in vitro. Chelated metals employed in diagnostic techniques may include, inter alia, gamma or positron emitting metals as well as fluorogenic or paramagnetic metals.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: June 12, 1984
    Inventors: Otto A. Gansow, Mette Strand
  • Patent number: 4257955
    Abstract: Novel lanthanide rare earth series cryptate coordination compounds or complexes are described. The compounds are highly kinetically inert in aqueous solution to dissociation of the complexes as a function of time. The compounds are particularly useful as relaxation agents in NMR spectra because of their stability in water or polar organic solvents and are also useful in electrochemistry, synthesis and medicine. A process for the preparation of metal cryptate coordination compounds in general is also described.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: March 24, 1981
    Assignee: Board of Trustees, Michigan State University
    Inventors: Otto A. Gansow, Kelly B. Triplett