Patents by Inventor Ronald Tako Marinus Van Den Dool
Ronald Tako Marinus Van Den Dool 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: 9783620Abstract: A colourless resistant starch is produced by a process comprising (i) suspending starch in a C2-C4 alcohol, in particular ethanol, in the presence of 0.01-3.0% (w/w) of acid based on the starch; (ii) heating the suspended starch at a temperature of 70-160° C., in particular 78-120° C., and (c) isolating the resulting product. The resulting starch has a resistant fraction of at least 20%.Type: GrantFiled: September 19, 2013Date of Patent: October 10, 2017Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUUR WETENSCHAPPELIJK ONDERZOEK TNOInventors: Maurice Karel Hubertina Essers, Ricardo Nagtegaal, Johannes Wilhelmus Timmermans, Jan Matthijs Jetten, Theodoor Maximiliaan Slaghek, Ronald Tako Marinus Van Den Dool
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Patent number: 9481739Abstract: Method for preparing a branched glucan having a chain comprising a plurality of glucose units linked by alpha 1,4-glycoside bonds and a plurality of side-groups linked to said chain via another type of glycoside bonding, which side-groups comprise one or more glucose units, the method comprising contacting a glucose source with a polysaccharide—which polysaccharide is a glucan comprising a plurality of glucose units linked by alpha 1,4-glycoside bonds and is essentially linear or branched to a lesser extent than the branched glucan that is to be prepared—in the presence of an acid catalyst under polycondensation conditions, thereby forming the branched glucan.Type: GrantFiled: May 21, 2013Date of Patent: November 1, 2016Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNOInventors: Maurice Karel Hubertina Essers, Johannes Wilhelmus Timmermans, Jerome Villarama Diaz, Ronald Tako Marinus van den Dool, Theodoor Maximiliaan Slaghek
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Publication number: 20150274849Abstract: A colourless resistant starch is produced by a process comprising (i) suspending starch in a C2-C4 alcohol, in particular ethanol, in the presence of 0.01-3.0% (w/w) of acid based on the starch; (ii) heating the suspended starch at a temperature of 70-160° C., in particular 78-120° C., and (c) isolating the resulting product. The resulting starch has a resistant fraction of at least 20%.Type: ApplicationFiled: September 19, 2013Publication date: October 1, 2015Applicant: Nederlandse Organisatie voor Toegepast- Natuurwetenschappelijk Onderzoek TNOInventors: Maurice Karel Hubertina Essers, Ricardo Nagtegaal, Johannes Wilhelmus Timmermans, Jan Matthijs Jetten, Theodoor Maximiliaan Slaghek, Ronald Tako Marinus Van Den Dool
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Publication number: 20150111848Abstract: Method for preparing a branched glucan having a chain comprising a plurality of glucose units linked by alpha 1,4-glycoside bonds and a plurality of side-groups linked to said chain via another type of glycoside bonding, which side-groups comprise one or more glucose units, the method comprising contacting a glucose source with a polysaccharide—which polysaccharide is a glucan comprising a plurality of glucose units linked by alpha 1,4-glycoside bonds and is essentially linear or branched to a lesser extent than the branched glucan that is to be prepared—in the presence of an acid catalyst under polycondensation conditions, thereby forming the branched glucan.Type: ApplicationFiled: May 21, 2013Publication date: April 23, 2015Inventors: Maurice Karel Hubertina Essers, Johannes Wilhelmus Timmermans, Jerome Villarama Diaz, Ronald Tako Marinus van den Dool, Theodoor Maximiliaan Slaghek
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Patent number: 8835143Abstract: The invention relates to a method for the preparation of hybrid cross-linked enzyme-silica aggregates including the steps of taking up enzyme molecules in a solvent, precipitating the enzyme molecules using a precipitation agent, and adding an alkoxysilane and crosslinking the mixture of alkoxysilane and precipitated enzyme aggregates, using a crosslinking agent comprising an aldehyde, to obtain hybrid crosslinked enzyme-silica aggregates.Type: GrantFiled: June 16, 2011Date of Patent: September 16, 2014Assignee: Clea Technologies BVInventors: Willem Robert Klaas Schoevaart, Lukas Michael Van Langen, Ronald Tako Marinus van Den Dool, Johannes Wilhelmus Leonardus Boumans
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Patent number: 8431375Abstract: The invention relates to a marking system for marking objects wherein said system comprises a microparticle comprising a cross-linked polymer and a marker component wherein the release of said marker component is triggered by contact of the microparticle with an external stimulus and wherein said polymer is a carbohydrate or a protein.Type: GrantFiled: July 4, 2008Date of Patent: April 30, 2013Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Randolph Peter Happe, Ronald Tako Marinus Van Den Dool, Johannes Wilhelmus Timmermans, Johannes Wilhelmus Leonardus Boumans
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Publication number: 20120149082Abstract: The invention relates to a method for the preparation of hybrid cross-linked enzyme-silica aggregates including the steps of taking up enzyme molecules in a solvent, precipitating the enzyme molecules using a precipitation agent, and adding an alkoxysilane and crosslinking the mixture of alkoxysilane and precipitated enzyme aggregates, using a crosslinking agent comprising an aldehyde, to obtain hybrid crosslinked enzyme-silica aggregates.Type: ApplicationFiled: June 16, 2011Publication date: June 14, 2012Inventors: Willem Robert Klaas Schoevaart, Lukas Michael Van Langen, Ronald Tako Marinus Van Den Dool, Johannes Wilheimus Leonardu Leonardus Boumans
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Publication number: 20110129865Abstract: The invention relates to a marking system for marking objects wherein said system comprises a microparticle comprising a cross-linked polymer and a marker component wherein the release of said marker component is triggered by contact of the microparticle with an external stimulus and wherein said polymer is a carbohydrate or a protein.Type: ApplicationFiled: July 4, 2008Publication date: June 2, 2011Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNOInventors: Randolph Peter Happe, Ronald Tako Marinus Van Den Dool, Johannes Wilhelmus Timmermans, Johannes Wilhelmus Leonardus Boumans
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Publication number: 20080296231Abstract: The invention relates to a method for the preparation of cross-linked enzyme aggregates, which method is characterised by the following steps: i. generating aldehyde groups on enzyme molecules that may or may not be dissolved in a suitable solvent; ii. precipitating the enzyme molecules using a suitable precipitation agent; iii. cross-linking the precipitated enzyme molecules provided with aldehyde groups, using an amine composition, yielding cross-linked enzyme aggregates with improved properties.Type: ApplicationFiled: October 27, 2005Publication date: December 4, 2008Applicant: CLEA TECHNOLOGIES BVInventors: Willem Robert Klaas Schoevaart, Lukas Michael Van Langen, Ronald Tako Marinus Van Den Dool, Johannes Wilhelmus Leonardus Boumans
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Patent number: 6875861Abstract: A process for producing nitrosonium ions is described, in which a nitroxyl compound such as TEMPO is oxidized using an oxidizing agent in the presence of a complex of a transition metal such as Mn, Fe, Cu, and a complexing agent such as a polyamine. The process is useful for the oxidation of carbohydrates containing at least 1 cyclic monosaccharide chain group carrying a carbaldehyde group per 100 or per 25 monosaccharide units and per molecule.Type: GrantFiled: February 24, 2000Date of Patent: April 5, 2005Assignee: SCA Hygiene Products Zeist B.V.Inventors: Arie Cornelis Besemer, Jan Matthijs Jetten, Thomas Jaschinski, Ronald Tako Marinus Van Den Dool
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Patent number: 6831173Abstract: A process for producing aldehydes, and/or carboxylic acids is described, in which a primary alcohol, especially a carbohydrate, is oxidized using a catalytic amount of a nitrosonium compound obtained by oxidizing a nitroxyl compound in the presence of an enzyme compound capable of oxidation. Further described are oxidized carbohydrates containing at least 1 cyclic monosaccharide chain group carrying a carbaldehyde group per 25 monosaccharide units and per molecule.Type: GrantFiled: November 26, 2001Date of Patent: December 14, 2004Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Jan Matthijs Jetten, Ronald Tako Marinus Van Den Dool, Wim Van Hartingsveldt, Mario Tarcisius Raymundus Van Wandelen
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Patent number: 6031155Abstract: A genomic nucleic acid sequence encoding a 62 kDa barley endoxylanase has been isolated and characterized. The genomic DNA sequences are used to transform plant cells for expression of enhanced amounts of active endoxylanase.Type: GrantFiled: June 5, 1997Date of Patent: February 29, 2000Inventors: Verena Cameron-Mills, Finn Lok, Catharina Maria Cornelia Sinjorgo, Ronald Tako Marinus van den Dool, Martinus Petrus Maria Caspers, Maria Joanna van Zeijl-van der Valk