Patents by Inventor Frank Elischweski

Frank Elischweski 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 preparation of pantothenic acid by amplification of nucleotide sequences which code for the ketopantoate reductase
    Patent number: 6787334
    Abstract: The invention relates to a process for the preparation and improvement of D-pantothenic acid-producing microorganisms by amplification of nucleotide sequences which code for ketopantoate reductase, in particular the panE gene, individually or in combination with one another, and optionally additionally of the ilvC gene, the microorganisms containing these nucleotide sequences, and a process for the preparation of D-pantothenic acid comprising fermentation of these microorganisms, concentration of pantothenic acid in the medium or in the cells of the microorganisms, and isolation of the D-pantothenic acid.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: September 7, 2004
    Assignee: Degussa AG
    Inventors: Frank Elischweski, Jorn Kalinowski, Alfred Puhler, Nicole Dusch, Jurgen Dohmen, Mike Farwick, Georg Thierbach
  • Mutant E. coli kiz strains for production of pantothenic acid
    Patent number: 6171845
    Abstract: The invention relates to a process for the preparation and improvement of D-pantothenic acid-producing microorganisms by amplification of nucleotide sequences which code for ketopantoate reductase, in particular the panE gene, individually or in combination with one another, and optionally additionally of the ilvC gene, the microorganisms containing these nucleotide sequences, and a process for the preparation of D-pantothenic acid comprising fermentation of these microorganisms, concentration of pantothenic acid in the medium or in the cells of the microorganisms, and isolation of the D-pantothenic acid.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: January 9, 2001
    Assignee: Degussa-Huls AG
    Inventors: Frank Elischweski, Jorn Kalinowski, Alfred Puhler, Nicole Dusch, Jurgen Dohmen, Mike Farwick, Georg Thierbach