Patents by Inventor Joannes Kierkels

Joannes Kierkels 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).

  • Patent number: 8642312
    Abstract: Polypeptide and recombinant protein having esterase activity which exhibit the amino acid sequence SEQ. ID. No. 1 and the use thereof.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: February 4, 2014
    Assignee: DSM Fine Chemicals Austria NFG GmbH & Co KG
    Inventors: Gerhard Steinbauer, Micheal Stanek, Peter Pojarliev, Wolfgang Skranc, Helmut Schwab, Joannes Kierkels, Marcel Wubbolts, Harald Pichler, Manuela Hermann, Christoph Zenzmaier
  • Publication number: 20120220014
    Abstract: Polypeptide and recombinant protein having esterase activity which exhibit the amino acid sequence SEQ. ID. No. 1 and the use thereof.
    Type: Application
    Filed: March 12, 2012
    Publication date: August 30, 2012
    Applicant: DSM FINE CHEMICALS AUSTRIA NFG GMBH & CO KG
    Inventors: Gerhard Steinbauer, Michael Stanek, Peter Pojarliev, Wolfgang Skranc, Helmut Schwab, Joannes Kierkels, Marcel Wubbolts, Harald Pichler, Manuela Hermann, Christoph Zenzmaier
  • Patent number: 8158393
    Abstract: Method of resolving stereoselectively racemic 2-alkyl-5-halopent-4-ene-carboxylic esters of the formula (I) in which R is a C1-C6-alkyl radical, R1 is C1-C4-alkyl and X is chlorine, bromine or iodine, by contacting a racemic ester of formula (I) with a polypeptide or recombinant protein having esterase activity and exhibiting an amino acid sequence that is at least 98% identical to the amino acid sequence of SEQ. ID. No. 1.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: April 17, 2012
    Assignee: DSM Fine Chemicals Austria NFG GmbH & Co KG
    Inventors: Gerhard Steinbauer, Micheal Stanek, Peter Pojarliev, Wolfgang Skranc, Helmut Schwab, Marcel Wubbolts, Joannes Kierkels, Harald Pichler, Manuela Hermann, Christoph Zenzmaier
  • Publication number: 20100151541
    Abstract: Polypeptide and recombinant protein having esterase activity which exhibit the amino acid sequence SEQ. ID. No. 1 and the use thereof.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 17, 2010
    Inventors: Gerhard Steinbauer, Micheal Stanek, Peter Pojarliev, Wolfgang Skranc, Helmut Schwab, Marcel Wubbolts, Joannes Kierkels, Harald Pichler, Manuela Hermann, Christoph Zenzmaier
  • Publication number: 20060035321
    Abstract: The invention relates to isolated polypeptides with hydantoin recemase activity, that do not suffer from substrate inhibition. Such polypeptides arc for instance isolated polypeptides with at least 87% idcntity with SEQ ID: NO. 2 or SEQ ED: NO. 4. The invention also relates to nucleic acid sequences encoding these polypeptides. The invention also relates to processes for the racemisation of enantiomerically enriched hydantoin compounds and to processes for the preparation of enantiomarically enriched I)-or I-? amino acids.
    Type: Application
    Filed: May 23, 2003
    Publication date: February 16, 2006
    Applicant: DSM IP Assets B.V.
    Inventors: Wilhelmus Hubertus Boesten, Joannes Kierkels, Bernard Assema, Luis Fuiz Perez, Dolores Gonzalez Pacanowska, Jesus Gonzalez Lopez, Santiago De La Escal Era Hueso