Patents by Inventor Walter Pfefferie

Walter Pfefferie 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).

  • Nucleotide sequences coding for the export of branched-chain amino acids, process for the isolation thereof and use thereof
    Patent number: 6841360
    Abstract: This invention relates to isolated polynucleotides containing at least one of the polynucleotide sequences selected from the group a) polynucleotide which is at least 70% identical to a polynucleotide which codes for a polypeptide containing at least one amino acid sequence of SEQ ID no. 3 or 5, b) polynucleotide which codes for a polypeptide which contains an amino acid sequence which is at least 70% identical to the amino acid sequence of SEQ ID no. 3 or 5, c) polynucleotide which is complementary to the polynucleotides of a), b) or c), and d) polynucleotide containing at least 15 successive bases of the polynucleotide sequences of a), b) or c). wherein the polypeptides exhibit the biological activity of the enzymes for which the brnE or bernF (sic)gene codes and a process for the fermentative production of branched-chain L-amino acids with amplification of the stated genes.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: January 11, 2005
    Assignees: Degussa-Huls Aktiengesellschaft, Forschungszentrum Julich GmbH
    Inventors: Nicole Kennerknecht, Hermann Sahm, Lothar Eggeling, Walter Pfefferie