Patents by Inventor Martin Wenzel

Martin Wenzel 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).

  • Cyclopentadienylcarbonyl 99MTC complexes, process for their production as well as their use in diagnostics
    Patent number: 5538712
    Abstract: The invention relates to cyctopentadienylcarbonyl.sup.99m Tc complexes of general formula I ##STR1## in which --XR can have various meanings. These new complexes of .sup.99m technetium can be used in the field of medical diagnosis. The invention further relates to a process for the production of complexes according to the invention.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: July 23, 1996
    Assignee: Institut Fur Diagnostikforschung GmbH/an der Freien Universitat Berlin
    Inventors: Martin Wenzel, Paul E. Schulze
  • Diagnostic or radiotherapeutic composition comprising a hydrogen containing compound
    Patent number: 5167948
    Abstract: The invention relates to a diagnostic or radiotherapeutic composition, comprising a hydrogen containing compound in addition to a pharmaceutically acceptable formulation means and optionally an inactive carrier and/or one or more auxiliary substances, wherein the hydrogen containing compound comprises at least one deuterium atom. The invention further relates to a compound to be used for said composition and to a kit for preparing a radio-diagnostic composition.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: December 1, 1992
    Assignee: Mallinckrodt Medical, Inc.
    Inventor: Martin Wenzel
  • Radiolabelled metallocene derivatives
    Patent number: 4584186
    Abstract: The invention relates to radiolabelled metallocene derivatives of the general formula ##STR1## wherein Mc is a metallocenyl group with a radioactive central atom,R is a carbonyl or methylene group,R.sub.1 is a hydrogen atom or an alkyl group having 1-4 carbon atoms,A is a carboxy group or a pharmaceutically acceptable salt thereof, or an alkoxycarbonyl or alkanoyl group having 2-5 carbon atoms, andn is 1-4.The invention also relates to radiodiagnostic compositions comprising said radiolabelled metallocene derivatives and to a method of performing a radiodiagnostic examination, in particular of examining the renal function.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: April 22, 1986
    Assignee: Mallinckrodt, Diagnostica (Holland) B.V.
    Inventors: Martin Wenzel, Gert Schachschneider, Jan Nielsen
  • Metallocenes and metallocene derivatives having a radioactive central atom
    Patent number: 4028389
    Abstract: Radioactive metallocenes and metallocene derivatives are prepared by heating a non-radioactive metallocene or metallocene derivative with a radioactive metal salt, e.g., Ru.sup.103 Cl.sub.3, at 140.degree.-250.degree. C.
    Type: Grant
    Filed: September 21, 1973
    Date of Patent: June 7, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Martin Wenzel, Detlef Langheim