Patents by Inventor Detlef Langheim

Detlef Langheim 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).

  • 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