Patents by Inventor Axel Steinstrasser

Axel Steinstrasser 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).

  • Process for the preparation of an organ-specific substance labeled with technetium-99m
    Patent number: 5723102
    Abstract: The invention relates to a process for the preparation of an organ-specific substance labeled with technetium-99m, in which an organ-specific substance, or an organ-specific substance which has been pretreated or coupled to a complexing agent for technetium-99m, is mixed with ?99m!-pertechnetate and a complex-stabilized reducing agent.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 3, 1998
    Assignee: CIS Bio International
    Inventors: Karl-Heinz Bremer, Ludwig Kuhlmann, Alexander Schwarz, Axel Steinstrasser
  • Method for labeling proteins with technetium or rhenium
    Patent number: 5219555
    Abstract: The invention relates to a method for labeling substances with--in particular radioactive--technetium or rhenium isotopes with the aid of N-substituted or C-substituted macrocyclic amine derivatives of the formula I and/or II ##STR1## in which R.sup.1 -R.sup.7, Y, m, n, o, p, f, g, h, i and j have the stated meanings, and to the use of these labeled substances, especially in medical diagnosis.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: June 15, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl-Heinz Bremer, Ludwig Kuhlmann, Michael Magerstadt, Alexander Schwarz, Axel Steinstrasser
  • Diagnostic aid containing an organ-specific substance labeled with technetium-99m
    Patent number: 5164175
    Abstract: The invention relates to a process for the preparation of an organ-specific substance labeled with technetium-99m, in which an organ specific substance, or an organ-specific substance which has been pretreated or coupled to a complexing agent for technetium-99m, is mixed with [99m]-pertechnetate and a complex-stabilized reducing agent.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: November 17, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl-Heinz Bremer, Ludwig Kuhlmann, Alexander Schwarz, Axel Steinstrasser
  • Process for the preparation of an organ-specific substance labeled with technetium-99m
    Patent number: 5116596
    Abstract: The invention relates to a process for the preparation of an organ-specific substance labeled with technetium-99m, in which an organ-specific substance, or an organ-specific substance which has been pretreated or coupled to a complexing agent for technetium-99m, is mixed with [99m]-pertechnetate and a complex-stabilized reducing agent.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: May 26, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl-Heinz Bremer, Ludwig Kuhlmann, Alexander Schwarz, Axel Steinstrasser
  • Products containing Tc-99-m-.omega.alkylphosphinico-1-hydroxyalkane-1,1-diphosphonates for bone scintigraphy and a process for the preparation of these products
    Patent number: 4910012
    Abstract: Tc-99m products containing at least one compound of the formula I ##STR1## in which R is a methyl, ethyl or propyl group and n represents a number from 1 to 6, or the physiologically tolerated salts thereof, are suitable for use in bone scintigraphy, especially for locating bone tumors.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: March 20, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Alexander Schwarz, Axel Steinstrasser
  • Diagnostic aid for the scintigraphic visualization of malignant tumors comprising the substance obtained from enzymatic processing of murein using hen's eggwhite lysozyme
    Patent number: 4885151
    Abstract: A diagnostic aid for the scintigraphic visualization of malignant tumors which contains a radionuclide which is bonded by means of a complex-forming agent to the substance obtained by the enzymatic processing of murein with enzyme consisting essentially of hen's eggwhite lysozyme.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: December 5, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Oberhausen, Ludwig Kuhlmann, Gerhard Seibert, Axel Steinstrasser, Hans-Joachim Schroth, Karl-Heinz Bremer