Patents by Inventor Schaefer Eugene

Schaefer Eugene 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).

  • Patent number: 6320044
    Abstract: A process for recovering a lipophilic oligosaccharide antibiotic from an aqueous fermentation broth containing the lipophilic oligosaccharide antibiotic admixed with impurities, by-products and/or suspended solids, comprising: a) combining said fermentation broth with an adsorbent; b) adjusting the pH of the broth to alkaline in order to solubilize the antibiotic in the broth; c) allowing sufficient time for the solubilized antibiotic in the alkaline broth to be adsorbed by the adsorbent; d) adjusting the pH of the broth to about neutral in order to stabilize the antibiotic adsorbed on the adsorbent; and e) separating the adsorbent to which the antibiotic is adsorbed from the broth. A medium for storing an oligosaccaride antibiotic comprising an adsorbent having a lipophilic oligosaccaride antibiotic adsorbed thereon is also disclosed.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: November 20, 2001
    Assignee: Schering Corporation
    Inventors: Yair Alroy, Steven Blaisdell, Allan Morenberg, Schaefer Eugene