Patents by Inventor Anders Riisager

Anders Riisager 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).

  • Publication number: 20220388938
    Abstract: The present disclosure relates to compounds suitable for treating, ameliorating and/or preventing neuromuscular disorders, including the reversal of drug-induced neuromuscular blockade. The compounds as defined herein can inhibit the CIC-1 ion channel.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 8, 2022
    Applicant: NMD PHARMA A/S
    Inventors: Lars J.S. KNUTSEN, Nicholas KELLY, Martin Brandhøj SKOV, Anders RIISAGER, Neerja SARASWAT
  • Patent number: 10246477
    Abstract: The present invention relates to isomerization of C4-C6 aldoses to their corresponding C4-C6 ketoses. In particular, the invention concerns isomerization of C4-C6 aldoses over solid zeolite catalysts free of any metals other than aluminum, in the presence of suitable solvent(s) at suitable elevated temperatures. C6 and C5 aldose sugars such as glucose and xylose, which are available in large amounts from biomass precursors, are isomerized to fructose and xylulose respectively, in a one or two-step process over inexpensive commercially available zeolite catalysts, containing aluminum as the only metal in the catalyst. The ketoses obtained are used as sweeteners in the food and/or brewery industry, or treated to obtain downstream platform chemicals such as lactic acid, HMF, levulinic acid, furfural, MMHB, and the like.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: April 2, 2019
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Anders Riisager, Shunmugavel Saravanamurugan
  • Patent number: 10207221
    Abstract: The present invention relates to a new strategy for capturing NOx using a two-step process.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: February 19, 2019
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Rasmus Fehrmann, Anders Riisager, Susanne L. Mossin, Peter Thomassen, Anders Theilgaard Madsen, Andreas Jonas Kunov-Kruse
  • Patent number: 10189768
    Abstract: The present invention relates to a method for hydrogenolysis of alpha-hydroxy esters or acids, comprising reacting the alpha-hydroxy ester or acid in the presence of a heterogeneous catalyst. The present invention also relates to a method for producing propionic acid ester, and the use of any of the methods for the production of propionic acid esters, such as alkyl propionate.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 29, 2019
    Assignee: Danmarks Tekniske Universitet
    Inventors: Shunmugavel Saravanamurugan, Santosh Govind Khokarale, Anders Riisager
  • Patent number: 10130911
    Abstract: The present invention concerns the absorption and desorption behavior of carbon dioxide (CO2) using ionic liquids derived from amino acids adsorbed on porous carrier materials.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: November 20, 2018
    Assignee: Danmarks Tekniske Universitet
    Inventors: Rasmus Fehrmann, Anders Riisager, Helene Kolding, Saravanamurugan Shunmugavel
  • Patent number: 10022703
    Abstract: The disclosure concerns an improved method of preparation of nanoparticular vanadium oxide/anatase titania catalysts having a narrow particle size distribution. In particular, the disclosure concerns preparation of nanoparticular vanadium oxide/anatase titania catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is coprecipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: July 17, 2018
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Steffen Buus Kristensen, Andreas Jonas Kunov-Kruse, Anders Riisager, Rasmus Fehrmann
  • Publication number: 20180170853
    Abstract: The present invention relates to a method for hydrogenolysis of alpha-hydroxy esters or acids, comprising reacting the alpha-hydroxy ester or acid in the presence of a heterogeneous catalyst. The present invention also relates to a method for producing propionic acid ester, and the use of any of the methods for the production of propionic acid esters, such as alkyl propionate.
    Type: Application
    Filed: June 23, 2016
    Publication date: June 21, 2018
    Inventors: Shunmugavel SARAVANAMURUGAN, Santosh Govind KHOKARALE, Anders RIISAGER
  • Publication number: 20170341067
    Abstract: The present invention concerns a catalyst system in particular a catalyst system comprising Palladium (Pd), a zwitterion and/or an acid-functionalized ionic liquid, and one or more phosphine ligands, wherein the Pd catalyst can be provided by a complex precursor, such as Pd(CH3COO)2, PdCl2, Pd(CH3COCHCOCH3), Pd(CF3COO)2, Pd(PPh3)4 or Pd2(dibenzylideneacetone)3. Such catalyst systems can be used for e.g. alkoxycarbonylation reactions, carboxylation reactions, and/or in a co-polymerization reaction, e.g. in the production of methyl propionate and/or propanoic acid, optionally in processes forming methyl methacrylate and/or methacrylic acid. Catalyst systems according to the invention are suitable for reactions forming separable product and catalyst phases and supported ionic liquid phase SILP applications.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Anders Riisager, Rasmus Fehrmann, Eduardo J. Garcia Suarez, Jianmin Xiong
  • Publication number: 20170173523
    Abstract: The present invention concerns the absorption and desorption behaviour of carbon dioxide (CO2) using ionic liquids derived from amino acids adsorbed on porous carrier materials.
    Type: Application
    Filed: February 8, 2017
    Publication date: June 22, 2017
    Applicant: Danmarks Tekniske Universitet
    Inventors: Rasmus FEHRMANN, Anders RIISAGER, Helene KOLDING, Saravanamurugan SHUNMUGAVEL
  • Patent number: 9676697
    Abstract: The present invention relates to the field of converting carbohydrates into levulinic acid, a platform chemical for many chemical end products. More specifically the invention relates to a method for converting carbohydrates such as mono-, di- or polysaccharides, obtained from for example biomass production into a suitable levulinic acid ester in the presence of a zeolite or zeotype catalyst and a suitable alcohol, and the ester may be further converted into levulinic acid if desired.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: June 13, 2017
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Shunmugavel Saravanamurugan, Anders Riisager
  • Publication number: 20170036164
    Abstract: The present invention relates to a new strategy for capturing NOx using a two-step process.
    Type: Application
    Filed: April 16, 2015
    Publication date: February 9, 2017
    Applicant: Danmarks Tekniske Universite
    Inventors: Rasmus Fehrmann, Anders Riisager, Susanne L. Mossin, Peter Thomassen, Anders Theilgaard Madsen, Andreas Jonas Kunov-Kruse
  • Publication number: 20160168070
    Abstract: The present invention relates to the field of converting carbohydrates into levulinic acid, a platform chemical for many chemical end products. More specifically the invention relates to a method for converting carbohydrates such as mono-, di- or polysaccharides, obtained from for example biomass production into a suitable levulinic acid ester in the presence of a zeolite or zeotype catalyst and a suitable alcohol, and the ester may be further converted into levulinic acid if desired.
    Type: Application
    Filed: February 23, 2016
    Publication date: June 16, 2016
    Inventors: Shunmugavel SARAVANAMURUGAN, Anders RIISAGER
  • Publication number: 20160136576
    Abstract: Cu/mordenite catalysts were found to be highly active for the SCR of NO with NH3 and exhibited high resistance to alkali poisoning. Redox and acidic properties of Cu/mordenite were well preserved after poisoning with potassium unlike that of vanadium catalysts. Fe-mordenite catalysts also revealed much higher alkali resistivity than that of commercial V2O5/WO3—TiO2 (VWT) SCR catalyst which is currently used for NOx abatement in stationary installations. Unique support properties like high surface area and surface acidity, which are not available in the commercial VWT catalyst, seem to be essential requirements for the high alkali resistance. Mordenite-type zeolite based catalysts could therefore be attractive alternatives to conventional SCR catalysts for biomass fired power plant flue gas treatment.
    Type: Application
    Filed: January 26, 2016
    Publication date: May 19, 2016
    Inventors: Putluru Siva Sankar Reddy, Anders Riisager, Rasmus Fehrmann
  • Patent number: 9289719
    Abstract: The present invention concerns the absorption and in situ oxidation of nitric oxide (NO) in the presence of water and oxygen in ionic liquid compositions at ambient temperature.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: March 22, 2016
    Assignee: Danmarks Tekniske Universitet
    Inventors: Anders Riisager, Andreas J. Kunov-Kruse, Susanne L. Mossin, Rasmus Fehrmann
  • Patent number: 9290429
    Abstract: The present invention relates to the field of converting carbohydrates into levulinic acid, a platform chemical for many chemical end products. More specifically the invention relates to a method for converting carbohydrates such as mono-, di- or polysaccharides, obtained from for example biomass production into a suitable levulinic acid ester in the presence of a zeolite or zeotype catalyst and a suitable alcohol, and the ester may be further converted into levulinic acid if desired.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: March 22, 2016
    Assignee: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Shunmugavel Saravanamurugan, Anders Riisager
  • Publication number: 20160067678
    Abstract: The disclosure concerns an improved method of preparation of nanoparticular vanadium oxide/anatase titania catalysts having a narrow particle size distribution. In particular, the disclosure concerns preparation of nanoparticular vanadium oxide/anatase titania catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is coprecipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step.
    Type: Application
    Filed: April 11, 2014
    Publication date: March 10, 2016
    Applicant: DANMARKS TEKNISKE UNIVERSITET
    Inventors: Steffen Buus KRISTENSEN, Andreas Jonas KUNOV-KRUSE, Anders RIISAGER, Rasmus FEHRMANN
  • Publication number: 20150232498
    Abstract: The present invention relates to isomerization of C4-C6 aldoses to their corresponding C4-C6 ketoses. In particular, the invention concerns isomerization of C4-C6 aldoses over solid zeolite catalysts free of any metals other than aluminum, in the presence of suitable solvent(s) at suitable elevated temperatures. C6 and C5 aldose sugars such as glucose and xylose, which are available in large amounts from biomass precursors, are isomerized to fructose and xylulose respectively, in a one or two-step process over inexpensive commercially available zeolite catalysts, containing aluminum as the only metal in the catalyst. The ketoses obtained are used as sweeteners in the food and/or brewery industry, or treated to obtain downstream platform chemicals such as lactic acid, HMF, levulinic acid, furfural, MMHB, and the like.
    Type: Application
    Filed: September 3, 2013
    Publication date: August 20, 2015
    Inventors: Anders Riisager, Shunmugavel Saravanamurugan
  • Publication number: 20150210622
    Abstract: The present invention relates to the field of converting carbohydrates into levulinic acid, a platform chemical for many chemical end products. More specifically the invention relates to a method for converting carbohydrates such as mono-, di- or polysaccharides, obtained from for example biomass production into a suitable levulinic acid ester in the presence of a zeolite or zeotype catalyst and a suitable alcohol, and the ester may be further converted into levulinic acid if desired.
    Type: Application
    Filed: August 2, 2013
    Publication date: July 30, 2015
    Inventors: Shunmugavel Saravanamurugan, Anders Riisager
  • Publication number: 20150196895
    Abstract: The present invention concerns the absorption and desorption behaviour of carbon dioxide (CO2) using ionic liquids derived from amino acids adsorbed on porous carrier materials.
    Type: Application
    Filed: July 12, 2013
    Publication date: July 16, 2015
    Applicant: Danmarks Tekniske Universitet
    Inventors: Rasmus Fehrmann, Anders Riisager, Helene Kolding, Saravanamurugan Shunmugavel
  • Patent number: 8969238
    Abstract: The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of nanoparticular metal oxide catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is co-precipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. The present invention also concerns processes wherein the nanoparticular metal oxide catalysts of the invention are used, such as SCR (deNOx) reactions of nitrogen oxides with ammonia or urea as reductant, oxidations of alcohols or aldehydes with dioxygen or air to provide aldehydes, ketones or carboxylic acids, and photocatalytic oxidation of volatile organic compounds (VOCs).
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 3, 2015
    Assignee: Danmarks Tekniske Universitet
    Inventors: Rasmus Fehrmann, Anders Riisager, Søren Birk Rasmussen, Steffen Buss Kristensen, Andreas Jonas Kunov-Kruse