Patents by Inventor Ilona Kleeberg

Ilona Kleeberg 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).

  • Enzyme which cleaves ester groups and which is derived from
    Patent number: 6995005
    Abstract: The invention relates to an ester-group-cleaving enzyme obtainable by culturing the microorganism Thermomonospora fusca in a suitable nutrient medium, optionally in the presence of an inducer.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: February 7, 2006
    Assignee: Gesellschaft fuer Biotechnologische Forschung mbH (GBF)
    Inventors: Wolf-Dieter Deckwer, Rolf-Joachim Mueller, Ilona Kleeberg, Joop van den Heuvel
  • DNA sequences coding for ester-group-cleaving enzymes
    Publication number: 20030194790
    Abstract: The invention relates to DNA sequences coding for enzymes that cleave or hydrolyse ester groups, to the production of those enzymes by genetically recombinant microorganisms and to the use of those enzymes and microorganisms for the degradation of polymers containing ester groups, especially aliphatic-aromatic polyesters.
    Type: Application
    Filed: March 20, 2002
    Publication date: October 16, 2003
    Inventors: Wolf-Dieter Deckwer, Rolf-Joachim Mueller, Joop van den Heuvel, Ilona Kleeberg, Ute Widow