Patents by Inventor Bernd Frenzel

Bernd Frenzel 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).

  • Protective Medium for preserving vital tissue, especially teeth
    Patent number: 5786337
    Abstract: The invention relates to an antibiotic-free protective medium, comprising nutrients for tissue growth, which comprises a non-antibiotic preservative to prevent contamination, a method of producing said protective medium and the use of said medium for preserving vital tissue.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: July 28, 1998
    Assignee: Biochrom KG
    Inventor: Bernd Frenzel
  • Chemiluminescent immunoassay with activator of hydrogen peroxide and a chloramine
    Patent number: 4491634
    Abstract: In a process for qualitative and quantitative determination of antigens, antibodies, and antigen/antibody complexes, using a chemiluminescent marker in a liquid-phase or solid-phase assay the combination of chemiluminescent marker and activator for the marker is selected from the combinations(a) H.sub.2 O.sub.2 /chloramine (or functionally equivalent derivative) - fluorescein, methylene blue, thionine or functionally equivalent derivatives of these chemiluminescent markers; and(b) calcium hypochlorite-fluorescein or functionally equivalent derivative.The method is simpler and more sensitive than known methods and presents less danger to those performing the assay.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: January 1, 1985
    Inventor: Bernd Frenzel
  • Chemiluminescent immunoassays with triphenylmethane dyes activated by H.sub. O.sub.2 and a chloramine
    Patent number: 4433060
    Abstract: Process for the quantitative and qualitative determination of antigens, antibodies and their complexes by means of a chemiluminescing labelling substance activated or excited to chemiluminescence by an analytical reagent. By means of a serological reaction, initially an antigen/antibody complex is formed which is treated with a chemiluminescing conjugate containing chemiluminescing triphenylmethane dyes and the chemiluminescence of the chemiluminescing complex formed is measured. Qualitative or quantitative details on the substances to be measured are obtained on the basis of the resulting measured values. The dye labels are activated by either hypochlorites or mixtures of H.sub.2 O.sub.2 and a chloramine.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: February 21, 1984
    Inventor: Bernd Frenzel