Patents by Inventor Leonardus Wijnand Jenneskens

Leonardus Wijnand Jenneskens 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: 11065688
    Abstract: 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: Grant
    Filed: February 15, 2017
    Date of Patent: July 20, 2021
    Assignee: BASF CORPORATION
    Inventors: Leonardus Wijnand Jenneskens, John Wilhelm Geus, Bernard Hendrik Reesink, Pieter Hildegardus Berben, Jacobus Hoekstra
  • Patent number: 10279328
    Abstract: 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: Grant
    Filed: November 19, 2014
    Date of Patent: May 7, 2019
    Assignee: BASF Corporation
    Inventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens, Dirk van de Kleut, Edward Jan Vlietstra
  • Patent number: 10046069
    Abstract: 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: Grant
    Filed: August 1, 2017
    Date of Patent: August 14, 2018
    Assignee: BASF Corporation
    Inventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, John Wilhelm Geus
  • Patent number: 10010867
    Abstract: 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: Grant
    Filed: September 12, 2014
    Date of Patent: July 3, 2018
    Assignee: BASF CORPORATION
    Inventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens
  • Publication number: 20170354749
    Abstract: 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: Application
    Filed: August 1, 2017
    Publication date: December 14, 2017
    Inventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, John Wilhelm Geus
  • Patent number: 9750828
    Abstract: 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: Grant
    Filed: March 27, 2013
    Date of Patent: September 5, 2017
    Assignee: BASF Corporation
    Inventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, John Wilhelm Geus
  • Publication number: 20170216925
    Abstract: 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: Application
    Filed: February 15, 2017
    Publication date: August 3, 2017
    Inventors: Leonardus Wijnand Jenneskens, John Wilhelm Geus, Bernard Hendrik Reesink, Pieter Hildegardus Berben, Jacobus Hoekstra
  • Patent number: 9579635
    Abstract: 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: Grant
    Filed: December 12, 2013
    Date of Patent: February 28, 2017
    Assignee: BASF CORPORATION
    Inventors: Jacobus Hoekstra, Jim Aloysius Maria Brandts, Lorianne Wagemaker, John Wilhelm Geus, Leonardus Wijnand Jenneskens
  • Publication number: 20150328621
    Abstract: 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: Application
    Filed: December 12, 2013
    Publication date: November 19, 2015
    Inventors: Jacobus Hoekstra, Jim Aloysius Maria Brandts, Lorianne Wagemaker, John Wilhelm Geus, Leonardus Wijnand Jenneskens
  • Publication number: 20150320894
    Abstract: 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: Application
    Filed: March 27, 2013
    Publication date: November 12, 2015
    Applicant: BASF Corporation
    Inventors: Jacobus Hoekstra, Eefjan Breukink, Leonardus Wijnand Jenneskens, Joh Wilhelm Geus
  • Publication number: 20150069285
    Abstract: 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: Application
    Filed: November 19, 2014
    Publication date: March 12, 2015
    Applicant: BASF Corporation
    Inventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens, Dirk van de Kleut, Edward Jan Vlietstra
  • Publication number: 20130157055
    Abstract: 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: Application
    Filed: April 29, 2011
    Publication date: June 20, 2013
    Inventors: Leonardus Wijnand Jenneskens, John Wilhelm Geus, Bernard Hendrik Reesink, Pieter Hildegardus Berben, Jacobus Hoekstra
  • Publication number: 20120046162
    Abstract: 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: Application
    Filed: March 1, 2010
    Publication date: February 23, 2012
    Inventors: Jacobus Hoekstra, John Wilhelm Geus, Leonardus Wijnand Jenneskens, Dirk van de Kleut, Edward Jan Vlietstra