Patents by Inventor Jurgen Georg Lenz

Jurgen Georg Lenz 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).

  • Processes for preparing acarviosyl transferase and for using it in the conversion of acarbose homologues into acarbose, for the preparation of acarbose homologues
    Patent number: 5989882
    Abstract: The invention relates to acarviosyl transferase from actinomycetes, mainly from Actinoplanes sp. SE 50/110 and its mutants, to a process for isolating, purifying and characterizing the enzyme, to the isolation and characterization of the acbD gene encoding the acarviosyl transferase, to the expression of the acarviosyl transferase in a heterologous host organism, to the use of the acarviosyl transferase for converting acarbose minor constituents into acarbose or for preparing acarbose homologues, to the use of the acarviosyl transferase in acarbose purification, and also to the preparation of production mutants in which formation of minor constituents is reduced by means of inactivation of the acarviosyl transferase gene.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: November 23, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Anneliese Crueger, Hans-Georg Dellweg, Jurgen Georg Lenz, Werner Schroder, Hermann Pape, Klaus Goeke, Beate Schaper, Michael Hemker, Wolfgang Piepersberg, Jurgen Distler, Ansgar Stratmann
  • Para-hydroxyphenylacetic acid for reducing the repellency of insecticides
    Patent number: 5741501
    Abstract: The present invention relates to the new use of p-hydroxyphenylacetic acid, by itself or in a mixture with other chemical compounds, for reducing the repellency of insecticides in the control of cockroaches, and to cockroach control compositions which comprise these mixtures, details being found in the description.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: April 21, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Justus, Jurgen Georg Lenz, Gunther Nentwig, Jurgen Scherkenbeck, Martin Dambach, Gernot Wendler