Patents by Inventor Teresa Klein

Teresa Klein 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 production of activated sialic acids
    Patent number: 5334514
    Abstract: The invention relates to a process for the production of cytidine 5'-monophosphosialic acids which comprises reacting a sialic acid with cytidine 5'-triphosphate in the presence of a cell extract of a naturally occurring microorganism having cytidine 5'-monophospho-N-acetylneuraminic acid synthetase activity, the extract optionally having been subjected to one purification step.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: August 2, 1994
    Inventors: Matthias Kittelmann, Oreste Ghisalba, Teresa Klein, Udo Kragl, Christian Wandrey