Patents by Inventor Patrick Maria Franciscus Derkx
Patrick Maria Franciscus Derkx 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).
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Patent number: 8802398Abstract: A method of oxidizing a saccharide, by contacting the saccharide with an alcohol dehydrogenase (ADH) enzyme selected from a quinone redox cofactor-dependent ADH, a nicotinamide adenine dinucleotide (NAD+) redox cofactor-dependent ADH, a nicotinamide adenine dinucleotide phosphate (NADP+) redox cofactor-dependent ADH, and any combination thereof is described. An oxidized saccharide obtainable by the method and products, in particular food products and paper products, containing the oxidized saccharide, are also described.Type: GrantFiled: October 29, 2010Date of Patent: August 12, 2014Assignee: Dupont Nutrition Biosciences ApsInventors: Jorn Dalgaard Mikkelsen, Karsten Matthias Kragh, Rene Mikkelsen, Patrick Maria Franciscus Derkx, Shukun Yu, Harm Mulder, Igor Nikolaev
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Patent number: 8791232Abstract: An amino acid sequence is described. The amino acid may comprise a signal sequence that is SEQ ID NO. 1a (or a variant or homologue or derivative or fragment thereof) that is expressed as a fusion protein that comprises a protein of interest. The signal sequence directs secretion of the protein of interest. The protein of interest may be a heterologous protein. Secretion of the fusion protein aids purification.Type: GrantFiled: October 29, 2010Date of Patent: July 29, 2014Assignee: Dupont Nutrition Biosciences APSInventors: Patrick Maria Franciscus Derkx, Harm Mulder, Igor Nikolaev
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Patent number: 8178336Abstract: We describe a PS4 variant polypeptide derivable from a parent polypeptide having non-maltogenic exoamylase activity, in which the PS4 variant polypeptide comprises an amino acid substitution at position 307 to lysine (K) or arginine (R), with reference to the position numbering of a Pseudomonas saccharophilia exoamylase sequence shown as SEQ ID NO: 1. Preferably, the PS4 variant polypeptide further comprises an amino acid substitution at position 70, preferably G70D. The amino acid at positions 272 and 303 of the sequence of the are preferably histidine (H) and glycine (G).Type: GrantFiled: December 19, 2008Date of Patent: May 15, 2012Assignee: Danisco A/SInventors: Patrick Maria Franciscus Derkx, Anja Kellet-Smith Hemmingen, Rie Mejldal, Bo Spange Sørensen, Karsten Matthias Kragh
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Publication number: 20110256571Abstract: An amino acid sequence is described. The amino acid may comprise a signal sequence that is SEQ ID NO. 1a (or a variant or homologue or derivative or fragment thereof) that is expressed as a fusion protein that comprises a protein of interest. The signal sequence directs secretion of the protein of interest. The protein of interest may be a heterologous protein. Secretion of the fusion protein aids purification.Type: ApplicationFiled: October 29, 2010Publication date: October 20, 2011Inventors: Patrick Maria Franciscus Derkx, Harm Mulder, Igor Nikolaev
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Patent number: 8030050Abstract: The invention describes a PS4 variant polypeptide derivable from a parent polypeptide having amylase activity selected from the group consisting of: (a) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 146, 157, 161, 178, 179, 223, 229, 272, 303, 307, 309 and 334; (b) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 145, 146, 157, 178, 179, 223, 229, 272, 303, 307 and 334; (c) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 146, 157, 178, 179, 223, 229, 272, 303, 307, 309 and 334; and (d) a polypeptide comprising an amino acid mutation at each of positions 3, 33, 34, 70, 121, 134, 141, 146, 157, 178, 179, 223, 229, 272, 303, 307, 309 and 334; with reference to the position numbering of a Pseudomonas saccharophilia exoamylase sequence shown as SEQ ID NO: 1, uses of such a polypeptide as a food or feed additive, and nucleic acids encoding such.Type: GrantFiled: September 22, 2006Date of Patent: October 4, 2011Assignee: Danisco A/SInventors: Casper Tune Berg, Patrick Maria Franciscus Derkx, Carol Fioresi, Gijsbert Gerritse, Anja Hemmingen Kellet-Smith, Karsten Matthias Kragh, Wei Liu, Andrew Shaw, Bo Spange Sørensen, Charlotte Refdahl Thoudahl
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Publication number: 20110236935Abstract: A method of oxidising a saccharide, by contacting the saccharide with an alcohol dehydrogenase (ADH) enzyme selected from a quinone redox cofactor-dependent ADH, a nicotinamide adenine dinucleotide (NAD+) redox cofactor-dependent ADH, a nicotinamide adenine dinucleotide phosphate (NADP+) redox cofactor-dependent ADH, and any combination thereof is described. An oxidised saccharide obtainable by the method and products, in particular food products and paper products, containing the oxidised saccharide, are also described.Type: ApplicationFiled: October 29, 2010Publication date: September 29, 2011Inventors: Jørn Dalgaard Mikkelsen, Karsten Matthias Kragh, Rene Mikkelsen, Patrick Maria Franciscus Derkx, Shukun Yu, Harm Mulder, Igor Nikolaev
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Publication number: 20090202675Abstract: We describe a PS4 variant polypeptide derivable from a parent polypeptide having non-maltogenic exoamylase activity, in which the PS4 variant polypeptide comprises an amino acid substitution at position 307 to lysine (K) or arginine (R), with reference to the position numbering of a Pseudomonas saccharophilia exoamylase sequence shown as SEQ ID NO: 1. Preferably, the PS4 variant polypeptide further comprises an amino acid substitution at position 70, preferably G70D. The amino acid at positions 272 and 303 of the sequence of the are preferably histidine (H) and glycine (G).Type: ApplicationFiled: December 19, 2008Publication date: August 13, 2009Inventors: Patrick Maria Franciscus Derkx, Anja Kellet-Smith Hemmingen, Rie Mejldal, Bo Spange Sorensen, Karsten Matthias Kragh
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Publication number: 20080292747Abstract: Described is a PS4 variant polypeptide derivable from a polypeptide having amylase activity selected from: (a) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 146, 157, 161, 178, 179, 223, 229, 272, 303, 307, 309 and 334; (b) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 145, 146, 157, 178, 179, 223, 229, 272, 303, 307 and 334; (c) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 146, 157, 178, 179, 223, 229, 272, 303, 307, 309 and 334; and (d) a polypeptide comprising an amino acid mutation at each of positions 3, 33, 34, 70, 121, 134, 141, 146, 157, 178, 179, 223, 229, 272, 303, 307, 309 and 334; referring to the numbering of a Pseudomonas saccharophilia exoamylase shown as SEQ ID NO: 1.Type: ApplicationFiled: January 7, 2008Publication date: November 27, 2008Inventors: Casper Tune Berg, Patrick Maria Franciscus Derkx, Carol Fioresi, Gijsbert Gerritse, Anja Hemmingen Kellet-Smith, Karsten Matthias Kragh, Wei Liu, Andrew Shaw, Bo Spange Sorensen, Charlotte Refdahl Thoudahl
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Publication number: 20080227173Abstract: The invention describes a PS4 variant polypeptide derivable from a parent polypeptide having amylase activity selected from the group consisting of: (a) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 146, 157, 161, 178, 179, 223, 229, 272, 303, 307, 309 and 334; (b) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 145, 146, 157, 178, 179, 223, 229, 272, 303, 307 and 334; (c) a polypeptide comprising an amino acid mutation at each of positions 33, 34, 121, 134, 141, 146, 157, 178, 179, 223, 229, 272, 303, 307, 309 and 334; and (d) a polypeptide comprising an amino acid mutation at each of positions 3, 33, 34, 70, 121, 134, 141, 146, 157, 178, 179, 223, 229, 272, 303, 307, 309 and 334; with reference to the position numbering of a Pseudomonas saccharophilia exoamylase sequence shown as SEQ ID NO: 1, uses of such a polypeptide as a food or feed additive, and nucleic acids encoding such.Type: ApplicationFiled: September 22, 2006Publication date: September 18, 2008Inventors: Casper Tune BERG, Patrick Maria Franciscus Derkx, Carol Fioresi, Gijsbert Gerritse, Anja Hemmingen Kellet-Smith, Karsten Matthias Kragh, Wei Liu, Andrew Shaw, Bo Spange Sorensen, Charlotte Refdahl Thoudahl