Patents by Inventor Joakim Löfstedt

Joakim Löfstedt 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: 20230295206
    Abstract: The present invention relates to a composition of functionalized lignin where the composition exhibits a good stability and where the composition may be used for preparing fuels. The invention further relates a method of preparing the composition.
    Type: Application
    Filed: June 30, 2021
    Publication date: September 21, 2023
    Applicant: REN FUEL K2B AB
    Inventors: Amalia ÖST, Moa SUNDÉN, Joakim LÖFSTEDT, Joseph SAMEC, Christian DAHLSTRAND
  • Publication number: 20200392419
    Abstract: The present invention relates to a composition comprising hydrocarbon oil and substituted lignin, wherein the lignin has been substituted by esterification and acetylation of the hydroxyl groups, wherein the hydroxyl groups are esterified with a C14 or longer fatty acid at a degree of substitution of at least 20%, wherein the hydroxyl groups are acetylated at a degree of substitution of at least 20% and wherein at least 90% of the hydroxyl groups of the lignin is substituted by esterification and acetylation. The composition is essentially free from free fatty acid.
    Type: Application
    Filed: February 25, 2019
    Publication date: December 17, 2020
    Inventors: Joakim LÖFSTEDT, Christian DAHLSTRAND, Alexander OREBOM, Joseph SAMEC
  • Patent number: 10851245
    Abstract: A polymeric material comprising a first polymer and a second polymer where the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin. The modified lignin is modified with an alkyl containing group via linker wherein the linker is an ether group and wherein the alkyl containing group is derived from fatty acid methyl ester.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 1, 2020
    Inventors: Joseph Samec, Christopher Carrick, Alexander Orebom, Joakim Löfstedt
  • Patent number: 10781313
    Abstract: The present invention relates to a composition comprising a carrier liquid and lignin or lignin derivatives; wherein at least one of the hydroxyl groups of the biomass have been substituted with ester groups. The composition may be used for preparing fuels or lubricants.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: September 22, 2020
    Inventors: Joseph Samec, Joakim Löfstedt, Christian Dahlstrand, Alexander Orebom, Supaporn Sawadjoon
  • Patent number: 10676688
    Abstract: The present invention relates to a composition comprising lignin and a solvent where the lignin is functionalized with an ether group.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: June 9, 2020
    Assignee: REN FUEL K2B AB
    Inventors: Christian Dahlstrand, Alexander Orebom, Joseph Samec, Supaporn Sawadjoon, Joakim Löfstedt
  • Patent number: 10611884
    Abstract: The present invention relates to a composition comprising lignin and a solvent where the lignin is functionalized with an ether group.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: April 7, 2020
    Assignee: REN FUEL K2B AB
    Inventors: Joseph Samec, Joakim Löfstedt, Alexander Orebom, Christian Dahlstrand, Supaporn Sawadjoon
  • Publication number: 20190367734
    Abstract: The present invention relates to a composition comprising a carrier liquid and lignin or lignin derivatives; wherein at least one of the hydroxyl groups of the biomass have been substituted with ester groups. The composition may be used for preparing fuels or lubricants.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Applicant: Ren Fuel K2B AB
    Inventors: Joseph SAMEC, Joakim LÖFSTEDT, Christian DAHLSTRAND, Alexander OREBOM, Supaporn SAWADJOON
  • Patent number: 10421861
    Abstract: The present invention relates to a composition comprising a carrier liquid and lignin or lignin derivatives; wherein at least one of the hydroxyl groups of the biomass have been substituted with ester groups and wherein the carrier liquid is a gas oil. The composition may be used for preparing fuels or lubricants.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 24, 2019
    Assignee: REN FUEL K2B AB
    Inventors: Joseph Samec, Joakim Löfstedt, Christian Dahlstrand, Alexander Orebom, Supaporn Sawadjoon
  • Publication number: 20190233648
    Abstract: A polymeric material comprising a first polymer and a second polymer where the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin. The modified lignin is modified with an alkyl containing group via linker wherein the linker is an ether group and wherein the alkyl containing group is derived from fatty acid methyl ester.
    Type: Application
    Filed: December 15, 2017
    Publication date: August 1, 2019
    Inventors: Joseph SAMEC, Christopher CARRICK, Alexander OREBOM, Joakim LÖFSTEDT
  • Publication number: 20190127532
    Abstract: A polymeric material comprising a first polymer and a second polymer where the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin. The modified lignin is modified with an alkyl containing group via linker wherein the linker is an ether group and wherein the alkyl containing group is derived from fatty acid methyl ester.
    Type: Application
    Filed: December 21, 2018
    Publication date: May 2, 2019
    Inventors: Joseph SAMEC, Christopher CARRICK, Alexander OREBOM, Joakim LÖFSTEDT
  • Publication number: 20180319985
    Abstract: The present invention relates to a composition comprising a carrier liquid and lignin or lignin derivatives; wherein at least one of the hydroxyl groups of the biomass have been substituted with ester groups and wherein the carrier liquid is a gas oil. The composition may be used for preparing fuels or lubricants.
    Type: Application
    Filed: June 21, 2018
    Publication date: November 8, 2018
    Applicant: REN FUEL K2B AB
    Inventors: Joseph SAMEC, Joakim LÖFSTEDT, Christian DAHLSTRAND, Alexander OREBOM, Supaporn SAWADJOON
  • Patent number: 10030147
    Abstract: The present invention relates to a composition comprising a carrier liquid and lignin or lignin derivatives solubilized in said carrier liquid; wherein at least one of the hydroxyl groups of the lignin or lignin derivatives have been substituted with ester groups forming esterified lignin or lignin derivatives. The composition may be used for preparing fuels or lubricants.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 24, 2018
    Assignee: Ren Fuel K2B AB
    Inventors: Joseph Samec, Joakim Löfstedt, Christian Dahlstrand, Alexander Orebom, Supaporn Sawadjoon
  • Publication number: 20180142177
    Abstract: The present invention relates to a composition comprising lignin and a solvent where the lignin is functionalized with an ether group.
    Type: Application
    Filed: June 15, 2016
    Publication date: May 24, 2018
    Inventors: Christian Dahlstrand, Alexander Orebom, Joseph Samec, Supaporn Sawadjoon, Joakim Löfstedt
  • Patent number: 9920201
    Abstract: The present invention relates to a composition and a method for preparing said composition where the composition comprises a lignin, a solvent, a carrier liquid, and a fatty acid, wherein the lignin constitutes at least 4 weight % of the composition and has a weight average molecular weight of not more than 5,000 g/mol, wherein the solvent is an alcohol, ether, organic ester, sulfoxide, ketone, aldehyde or a combination thereof, and wherein the carrier liquid is a hydrocarbon oil.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: March 20, 2018
    Assignee: REN FUEL K2B AB
    Inventors: Joseph Samec, Christian Dahlstrand, Joakim Löfstedt
  • Publication number: 20170298192
    Abstract: The present invention relates to a composition comprising lignin and a solvent where the lignin is functionalized with an ether group.
    Type: Application
    Filed: November 3, 2015
    Publication date: October 19, 2017
    Applicant: REN FUEL K2B AB
    Inventors: Joseph SAMEC, Joakim LÖFSTEDT, Alexander OREBOM, Christian DAHLSTRAND, Supaporn SAWADJOON
  • Publication number: 20170128434
    Abstract: Compounds of formula (I) or a pharmaceutically acceptable ester, amide, carbamate or salt thereof, including a salt of such an ester, amide or carbamate in which R1 to R9 have meanings as defined in the Specification, are useful as estrogen receptor ligands.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 11, 2017
    Inventors: Aiping Cheng, Neeraj Garg, Lars Krüger, Joakim Löfstedt, Eva Koch, Konrad Koehler, Lars Hagberg, Daniel Nöteberg
  • Patent number: 9586891
    Abstract: Compounds of formula (I) or a pharmaceutically acceptable ester, amide, carbamate or salt thereof, including a salt of such an ester, amide or carbamate in which R1 to R9 have meanings as defined in the Specification, are useful as estrogen receptor ligands.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: March 7, 2017
    Assignee: Karo Pharma AB
    Inventors: Aiping Cheng, Neeraj Garg, Lars Krüger, Joakim Löfstedt, Eva Koch, Konrad Koehler, Lars Hagberg, Daniel Nöteberg
  • Publication number: 20160312029
    Abstract: The present invention relates to a composition comprising an organic solvent and lignin or lignin derivatives; wherein at least one of the hydroxyl groups of the lignin or lignin derivatives have been substituted with ester groups forming esterified lignin or lignin derivatives. The composition may be used for preparing fuels.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Applicant: Ren Fuel K2B AB
    Inventors: Joseph SAMEC, Joakim LÖFSTEDT, Christian DAHLSTRAND, Alexander OREBOM, Supaporn SAWADJOON
  • Publication number: 20160312030
    Abstract: The present invention relates to a composition comprising a carrier liquid and lignin or lignin derivatives solubilized in said carrier liquid; wherein at least one of the hydroxyl groups of the lignin or lignin derivatives have been substituted with ester groups forming esterified lignin or lignin derivatives. The composition may be used for preparing fuels or lubricants.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Inventors: Joseph SAMEC, Joakim LÖFSTEDT, Christian DAHLSTRAND, Alexander OREBOM, Supaporn SAWADJOON
  • Patent number: 9422215
    Abstract: The present invention relates to a method of cleaving a ?-O-4 bond to the corresponding C—H bond in a substrate, by use of a hydrogen donor and a metal catalyst in a solvent. Thereby it is possible to depolymerize a polymer having a repeating ?-O-4 bond.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: August 23, 2016
    Assignee: KAT2BIZ AB
    Inventors: Joseph Samec, Maxim Galkin, Joakim Löfstedt