Patents by Inventor Ingeborg Salomon

Ingeborg Salomon 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 isolation and purification of alpha-interferons
    Patent number: 4681931
    Abstract: The invention relates to a process for the isolation and purification of .alpha.-interferons generated by plasmids from bacterial cultures which have been modified by genetic engineering, and of .alpha.-interferons from culture supernatants of induced mammalian cells, which comprises partition of appropriate crude substances containing interferon between an aqueous urea solution, which contains a surfactant, and a mixture of n-butanol and glacial acetic acid which contains water, and isolation of the purified .alpha.-interferons from the upper phase.
    Type: Grant
    Filed: June 6, 1985
    Date of Patent: July 21, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rainer Obermeier, Ingeborg Salomon, Jurgen Ludwig