Patents by Inventor Jacobus Hoekstra
Jacobus Hoekstra 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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Publication number: 20230264165Abstract: The invention is in the field of catalysis. In particular, the invention is directed to a catalytic reactor body, a method for the production of a catalytic reactor body and a use of a catalytic reactor body. The invention provides a catalytic reactor body, comprising a circumferential reactor wall extending in a main fluid flow direction of the reactor body between a reactor inlet and a reactor outlet thereby forming a channel for conducting a fluid; and a reactor bed arranged in the channel and being integrally formed with the circumferential reactor wall, wherein the reactor bed forms a plurality of sub-channels for guiding the fluid from the reactor inlet to the reactor outlet, each sub-channel defining a predetermined fluid path between the reactor inlet and the reactor outlet and being configured for directing the fluid in a direction at least partly transverse to the main flow direction.Type: ApplicationFiled: August 27, 2021Publication date: August 24, 2023Inventors: John Wilhelm GEUS, Jacobus HOEKSTRA, Marinus Franciscus Johannes EVERS
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Patent number: 11065688Abstract: The invention relates to nano-particles comprising metallic ferromagnetic nanocrystals combined with either amorphous or graphitic carbon in which or on which chemical groups are present that can dissociate in aqueous solutions. According to the invention there is provided nano-particles comprising metal particles of at least one ferromagnetic metal, which metal particles are at least in part encapsulated by graphitic carbon. The nano-particles of the invention are prepared by impregnating carbon containing bodies with an aqueous solution of at least one ferromagnetic metal precursor, drying the impregnated bodies, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing the metal compounds to the corresponding metal or metal alloy.Type: GrantFiled: February 15, 2017Date of Patent: July 20, 2021Assignee: BASF CORPORATIONInventors: Leonardus Wijnand Jenneskens, John Wilhelm Geus, Bernard Hendrik Reesink, Pieter Hildegardus Berben, Jacobus Hoekstra
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Patent number: 10279328Abstract: The invention is directed to the production of metal-carbon containing bodies, which process comprises impregnating cellulose, cellulose-like or carbohydrate bodies with an aqueous solution of at least one metal compound, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing at least part of the at least one metal compound to the corresponding metal or metal alloy.Type: GrantFiled: November 19, 2014Date of Patent: May 7, 2019Assignee: BASF CorporationInventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens, Dirk van de Kleut, Edward Jan Vlietstra
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Patent number: 10046069Abstract: The invention is directed to bodies comprising an amorphous carbon particle on which are supported nanoparticles of an oxide of lanthanide. These bodies find use as a pharmaceutical for use in a surgery or therapy and diagnostic methods. The bodies can be made by a process comprising impregnating a carbon source material by contacting it with a solution of a salt of the lanthanide; drying the impregnated carbon source material; and subjecting the dried impregnated material to pyrolysis under inert conditions.Type: GrantFiled: August 1, 2017Date of Patent: August 14, 2018Assignee: BASF CorporationInventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, John Wilhelm Geus
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Patent number: 10010867Abstract: The invention is directed to a process for producing carbon nanofibers and/or carbon nanotubes, which process comprises pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is capable of forming carbides, in a substantially oxygen free, volatile silicon compound containing atmosphere, optionally in the presence of a carbon compound.Type: GrantFiled: September 12, 2014Date of Patent: July 3, 2018Assignee: BASF CORPORATIONInventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens
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Publication number: 20170354749Abstract: The invention is directed to bodies comprising an amorphous carbon particle on which are supported nanoparticles of an oxide of lanthanide. These bodies find use as a pharmaceutical for use in a surgery or therapy and diagnostic methods. The bodies can be made by a process comprising impregnating a carbon source material by contacting it with a solution of a salt of said lanthanide; drying said impregnated carbon source material; and subjecting said dried impregnated material to pyrolysis under inert conditions.Type: ApplicationFiled: August 1, 2017Publication date: December 14, 2017Inventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, John Wilhelm Geus
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Patent number: 9750828Abstract: The invention is directed to bodies comprising an amorphous carbon particle on which are supported nanoparticles of an oxide of lanthanide. These bodies find use as a pharmaceutical for use in a surgery or therapy and diagnostic methods. The bodies can be made by a process comprising impregnating a carbon source material by contacting it with a solution of a salt of the lanthanide; drying the impregnated carbon source material; and subjecting the dried impregnated material to pyrolysis under inert conditions.Type: GrantFiled: March 27, 2013Date of Patent: September 5, 2017Assignee: BASF CorporationInventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, John Wilhelm Geus
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Publication number: 20170216925Abstract: The invention relates to nano-particles comprising metallic ferromagnetic nanocrystals combined with either amorphous or graphitic carbon in which or on which chemical groups are present that can dissociate in aqueous solutions. According to the invention there is provided nano-particles comprising metal particles of at least one ferromagnetic metal, which metal particles are at least in part encapsulated by graphitic carbon. The nano-particles of the invention are prepared by impregnating carbon containing bodies with an aqueous solution of at least one ferromagnetic metal precursor, drying the impregnated bodies, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing the metal compounds to the corresponding metal or metal alloy.Type: ApplicationFiled: February 15, 2017Publication date: August 3, 2017Inventors: Leonardus Wijnand Jenneskens, John Wilhelm Geus, Bernard Hendrik Reesink, Pieter Hildegardus Berben, Jacobus Hoekstra
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Patent number: 9579635Abstract: The invention is in the field of modified carbon products. More in particular, the invention is in the field of graphitized activated carbon bodies. The invention is directed to carbon bodies and ferromagnetic carbon bodies, the production of these bodies from activated carbon, and the applications of the carbon bodies and ferromagnetic carbon bodies, for instance in water treatment and in electrochemical applications.Type: GrantFiled: December 12, 2013Date of Patent: February 28, 2017Assignee: BASF CORPORATIONInventors: Jacobus Hoekstra, Jim Aloysius Maria Brandts, Lorianne Wagemaker, John Wilhelm Geus, Leonardus Wijnand Jenneskens
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Publication number: 20150328621Abstract: The invention is in the field of modified carbon products. More in particular, the invention is in the field of graphitized activated carbon bodies. The invention is directed to carbon bodies and ferromagnetic carbon bodies, the production of these bodies from activated carbon, and the applications of the carbon bodies and ferromagnetic carbon bodies, for instance in water treatment and in electrochemical applications.Type: ApplicationFiled: December 12, 2013Publication date: November 19, 2015Inventors: Jacobus Hoekstra, Jim Aloysius Maria Brandts, Lorianne Wagemaker, John Wilhelm Geus, Leonardus Wijnand Jenneskens
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Publication number: 20150320894Abstract: The invention is directed to bodies comprising an amorphous carbon particle on which are supported nanoparticles of an oxide of lanthanide. These bodies find use as a pharmaceutical for use in a surgery or therapy and diagnostic methods. The bodies can be made by a process comprising impregnating a carbon source material by contacting it with a solution of a salt of said lanthanide; drying said impregnated carbon source material; and subjecting said dried impregnated material to pyrolysis under inert conditions.Type: ApplicationFiled: March 27, 2013Publication date: November 12, 2015Applicant: BASF CorporationInventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, Joh Wilhelm Geus
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Publication number: 20150069285Abstract: The invention is directed to the production of metal-carbon containing bodies, which process comprises impregnating cellulose, cellulose-like or carbohydrate bodies with an aqueous solution of at least one metal compound, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing at least part of the at least one metal compound to the corresponding metal or metal alloy.Type: ApplicationFiled: November 19, 2014Publication date: March 12, 2015Applicant: BASF CorporationInventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens, Dirk van de Kleut, Edward Jan Vlietstra
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Publication number: 20150018201Abstract: The invention is directed to a process for producing carbon nanofibers and/or carbon nanotubes, which process comprises pyrolysing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is capable of forming carbides, in a substantially oxygen free, volatile silicon compound containing atmosphere, optionally in the presence of a carbon compound.Type: ApplicationFiled: September 12, 2014Publication date: January 15, 2015Applicant: BASF CORPROATIONInventors: Jacobus Hoekstra, John Wilhelm Jenneskens
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Publication number: 20130157055Abstract: The invention relates to nano-particles comprising metallic ferromagnetic nanocrystals combined with either amorphous or graphitic carbon in which or on which chemical groups are present that can dissociate in aqueous solutions. According to the invention there is provided nano-particles comprising metal particles of at least one ferromagnetic metal, which metal particles are at least in part encapsulated by graphitic carbon. The nano-particles of the invention are prepared by impregnating carbon containing bodies with an aqueous solution of at least one ferromagnetic metal precursor, drying the impregnated bodies, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing the metal compounds to the corresponding metal or metal alloy.Type: ApplicationFiled: April 29, 2011Publication date: June 20, 2013Inventors: Leonardus Wijnand Jenneskens, John Wilhelm Geus, Bernard Hendrik Reesink, Pieter Hildegardus Berben, Jacobus Hoekstra
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Publication number: 20120046162Abstract: The invention is directed to the production of metal-carbon containing bodies, which process comprises impregnating cellulose, cellulose-like or carbohydrate bodies with an aqueous solution of at least one metal compound, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing at least part of the at least one metal compound to the corresponding metal or metal alloy.Type: ApplicationFiled: March 1, 2010Publication date: February 23, 2012Inventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens, Dirk van de Kleut, Edward Jan Vlietstra