Patents by Inventor Albert H. Beth

Albert H. Beth 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).

  • Resolution enhancing maleimide spin label for biological EPR studies
    Patent number: 4332946
    Abstract: An improved maleimide spin label, namely, N-(.sup.15 N-oxyl-2,2,6,6-tetra-methyl-4-piperidinyl-d.sub.17) maleimide is provided for EPR spectroscopic investigations of biomedically relevant problems. Isotopic substitution of nitrogen-15 in the N--O bond and deuterium in the methyl groups (-CD.sub.3) and in all positions of the piperidine ring results in simplification of the EPR spectrum, greatly improved resolution, and a marked increase in signal intensity.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: June 1, 1982
    Assignee: Vanderbilt University
    Inventors: Sindhaghatta D. Venkataramu, Donald E. Pearson, Albert H. Beth