Patents by Inventor Elfriede Niemann

Elfriede Niemann 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 determining ferritin
    Patent number: 4278652
    Abstract: A process for the determination of ferritin in serum or in plasma is disclosed, which comprises incubating an antibody directed against an organ-specific isoferritin, which is covalently bound to nylon(polyamide 6,6), on the one hand with ferritin standard solutions and on the other hand with serum samples, decanting or aspirating the incubation solutions, washing the nylon-antibody-ferritin complex formed and subsequently incubating it with a iodine-labelled antibody directed against a second organ-specific isoferritin, isolating the nylon-antibody-ferritin-anti-body-.sup.125 I-complex formed, counting its radioactivity in the gamma counter and comparing the standard samples with the serum samples.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: July 14, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Elfriede Niemann, Brian H. Stagg, Stuart I. Cowan
  • Process for the manufacture of human transferrin labelled with indium 113m
    Patent number: 3939258
    Abstract: A process for the manufacture of human transferrin labelled with indium 113 m is provided, wherein an acid eluate of an indium 113 m generator having an activity concentration of 0.1 to 50 m Curie per ml is added dropwise to an aqueous solution containing 3 to 10 mg of sodium bicarbonate per 5 to 100 mg of human transferrin per ml. The solution may also contain hydrochloric acid or sodium chloride and a bacteriostatic agent.
    Type: Grant
    Filed: August 9, 1973
    Date of Patent: February 17, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Elfriede Niemann