Patents by Inventor Leif Jönsson

Leif Jönsson 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: 12006505
    Abstract: The invention relates to a method for producing a genetically modified plant or woody plant with improved growth properties (in terms of biomass and wood quality) as compared to a corresponding non-genetically modified wild type plant or woody plant, said method comprising altering the level of expression of a polypeptide in a plant cell or woody plant cell; a plant or woody plant; or a part thereof.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: June 11, 2024
    Assignee: SweTree Technologies AB
    Inventors: Magnus Hertzberg, Karin Johansson, David Jonsén, Pär Jonsson, Linus Möller, Leif Jönsson, Madhavi Latha Gandla, Rishikesh Bhalerao, Jarmo Schrader, Göran Sandberg
  • Publication number: 20220064660
    Abstract: The invention relates to a method for producing a genetically modified plant or woody plant with improved growth properties (in terms of biomass and wood quality) as compared to a corresponding non-genetically modified wild type plant or woody plant, said method comprising altering the level of expression of a polypeptide in a plant cell or woody plant cell; a plant or woody plant; or a part thereof.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 3, 2022
    Applicant: SweTree Technologies AB
    Inventors: Magnus HERTZBERG, Karin JOHANSSON, David JONSÉN, Pär JONSSON, Linus MÖLLER, Leif JÖNSSON, Madhav Latha GANDLA, Rishikesh BHALERAO, Jarmo SCHRADER, Göran ANDBERG
  • Patent number: 11193135
    Abstract: The invention relates to a method for producing a genetically modified plant or woody plant with improved growth properties (in terms of biomass and wood quality) as compared to a corresponding non-genetically modified wild type plant or woody plant, said method comprising altering the level of expression of a polypeptide in a plant cell or woody plant cell; a plant or woody plant; or a part thereof.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: December 7, 2021
    Assignee: SweTree Technologies AB
    Inventors: Magnus Hertzberg, Karin Johansson, David Jonsén, Pär Jonsson, Linus Möller, Leif Jönsson, Madhavi Latha Gandla, Rishikesh Bhalerao, Jarmo Schrader, Göran Sandberg
  • Publication number: 20200165623
    Abstract: The invention relates to a method for producing a genetically modified plant or woody plant with improved growth properties (in terms of biomass and wood quality) as compared to a corresponding non-genetically modified wild type plant or woody plant, said method comprising altering the level of expression of a polypeptide in a plant cell or woody plant cell; a plant or woody plant; or a part thereof.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 28, 2020
    Applicant: SweTree Technologies AB
    Inventors: Magnus Hertzberg, Karin Johansson, David Jonsén, Pär Jonsson, Linus Möller, Leif Jönsson, Madhavi Latha Gandla, Rishikesh Bhalerao, Jarmo Schrader, Göran Sandberg
  • Patent number: 10570407
    Abstract: The invention relates to a method for producing a genetically modified woody plant with improved growth properties (in terms of biomass and/or wood density) as compared to a corresponding non-genetically modified wild type plant or woody plant, said method comprising altering the level of expression of a polypeptide in a woody plant cell; a woody plant; or a part thereof.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: February 25, 2020
    Assignee: SweTree Technologies AB
    Inventors: Magnus Hertzberg, Karin Johansson, David Jonsén, Pär Jonsson, Linus Möller, Leif Jönsson, Madhavi Latha Gandla, Rishikesh Bhalerao, Jarmo Schrader, Göran Sandberg
  • Publication number: 20170349910
    Abstract: The invention relates to a method for producing a genetically modified woody plant with improved growth properties (in terms of biomass and/or wood density) as compared to a corresponding non-genetically modified wild type plant or woody plant, said method comprising altering the level of expression of a polypeptide in a woody plant cell; a woody plant; or a part thereof.
    Type: Application
    Filed: December 29, 2015
    Publication date: December 7, 2017
    Applicant: SweTree Technologies AB
    Inventors: Magnus HERTZBERG, Karin JOHANSSON, David JONSÉN, Pär JONSSON, Linus MÖLLER, Leif JÖNSSON, Madhavi Latha GANDLA, Rishikesh BHALERAO, Jarmo SCHRADER, Göran SANDBERG
  • Patent number: 9512454
    Abstract: The present invention relates to a method of enzymatic hydrolysis of a lignocellulosic material, comprising the steps of: a) pretreating the lignocellulosic material to obtain a slurry having a pH of less than 6; b) adding NaOH, Ca(OH)2 and/or CaO to the slurry to increase its pH to at least 8, said addition being carried out at a slurry temperature of at least 60° C.; c) reducing the pH of the slurry to below 7; and optionally cooling the slurry from step b) to a temperature below 60° C.; and d) adding hydrolytic enzymes to the slurry from c) and allowing the slurry to hydrolyze wherein no washing of the slurry is performed prior to step d).
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: December 6, 2016
    Assignee: Sekab E-Technology AB
    Inventors: Leif Jönsson, Björn Alriksson, Venkata Prabhakar Soudhama
  • Publication number: 20160251671
    Abstract: The invention relates to a method for producing a transgenic tree having reduced xylan content compared to a wild-type tree of the same species, said method comprising reducing expression of one or more genes from the glycosyltransferase 43 (GT43), family in the said transgenic tree, whereby growth properties, mechanical properties, and/or saccharification properties are improved in the said transgenic tree.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 1, 2016
    Inventors: Ewa J. MELLEROWICZ, Leif JÖNSSON, Christine RATKE, Barbara TEREBIENIEC, Sandra WINESTRAND
  • Publication number: 20150033411
    Abstract: The invention relates to methods for increasing saccharification potential in a plant, comprising overexpressing a polynucleotide encoding an acetyl xylan esterase polypeptide in at least one cell type in said plant. The invention further relates to methods for producing genetically modified plants overexpressing a polynucleotide encoding an acetyl xylan esterase polypeptide, as well as to genetically modified plants produced by such methods.
    Type: Application
    Filed: March 12, 2013
    Publication date: January 29, 2015
    Inventors: Prashant Mohan Pawar, Marta Derba-Maceluch, Ewa J. Mellerowicz, Madhavi Latha Gandla, Leif Jönsson
  • Patent number: 8815499
    Abstract: The present invention provides a method for decreasing the fermentation inhibition in a fermentation of cellulose-derived material in a fermentor, wherein fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to the fermentor. Further, there is provided a method of increasing the fermentability of a fermentation process comprising the steps of measuring the fermentability of the fermentation process and if the fermentability is below a reference value, then adding at least one reducing agent to the fermentation process.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: August 26, 2014
    Assignee: Sekab E-Technology AB
    Inventors: Björn Alriksson, Leif Jönsson, Sune Wännström
  • Patent number: 8795997
    Abstract: The present invention provides a method for decreasing the fermentation inhibition in a process for producing a target chemical from a pretreated cellulosic material, the process comprising enzymatic hydrolysis of the pretreated cellulosic material and fermentation of hydrolysed material, wherein the fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to the pretreated material or hydrolysed material. Moreover, the present invention provides the use of dithionite for decreasing the fermentation inhibitory properties of a material being subjected to simultaneous enzymatic hydrolysis and fermentation.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: August 5, 2014
    Assignee: Sekab E-Technology AB
    Inventors: Leif Jönsson, Björn Alriksson, Adnan Cavka
  • Publication number: 20140154746
    Abstract: The present invention relates to a method of enzymatic hydrolysis of a lignocellulosic material, comprising the steps of: a) pretreating the lignocellulosic material to obtain a slurry having a pH of less than 6; b) adding NaOH, Ca(OH)2 and/or CaO to the slurry to increase its pH to at least 8, said addition being carried out at a slurry temperature of at least 60° C.; c) reducing the pH of the slurry to below 7; and optionally cooling the slurry from step b) to a temperature below 60° C.
    Type: Application
    Filed: June 11, 2012
    Publication date: June 5, 2014
    Applicant: Sekab E-Technology AB
    Inventors: Leif Jönsson, Björn Alriksson, Venkata Prabhakar Soudhama
  • Publication number: 20130022958
    Abstract: The present invention provides a method for decreasing the fermentation inhibition in a fermentation of cellulose-derived material in a fermentor, wherein fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to the fermentor. Further, there is provided a method of increasing the fermentability of a fermentation process comprising the steps of measuring the fermentability of the fermentation process and if the fermentability is below a reference value, then adding at least one reducing agent to the fermentation process.
    Type: Application
    Filed: December 17, 2010
    Publication date: January 24, 2013
    Inventors: Björn Alriksson, Leif Jönsson, Sune Wännström
  • Publication number: 20130011894
    Abstract: The present invention provides a method for decreasing the fermentation inhibition in a process for producing a target chemical from a pretreated cellulosic material, the process comprising enzymatic hydrolysis of the pretreated cellulosic material and fermentation of hydrolysed material, wherein the fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to the pretreated material or hydrolysed material. Moreover, the present invention provides the use of dithionite for decreasing the fermentation inhibitory properties of a material being subjected to simultaneous enzymatic hydrolysis and fermentation.
    Type: Application
    Filed: December 17, 2010
    Publication date: January 10, 2013
    Inventors: Leif Jönsson, Björn Alriksson, Adnan Cavka
  • Patent number: 8110383
    Abstract: A method for preparing a target chemical derivable from cellulosic biomass, involving detoxification of spent hydrolysate is provided. The method comprises the steps of providing cellulosic biomass, subjecting the cellulosic biomass to aqueous pretreatment, aqueous hydrolysis, and fermentation under conditions in which at least a part of the fermentable sugars are fermented into a primary target chemical, separating the primary target chemical from the fermented hydrolysate to provide a spent hydrolysate comprising inhibitory substances and detoxifying the spent hydrolysate by decreasing the concentration of at least one of the inhibitory substances using a detoxification biocatalyst selected from the group consisting of wild type, mutant and recombinant filamentous fungi and recirculating at least a part of the detoxified spent hydrolysate, optionally after further purification.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 7, 2012
    Assignee: Sekab E-Technology AB
    Inventors: Leif Jönsson, Björn Alriksson
  • Publication number: 20110217746
    Abstract: A method for preparing a target chemical derivable from cellulosic biomass, involving detoxification of spent hydrolysate is provided. The method comprises the steps of providing cellulosic biomass, subjecting the cellulosic biomass to aqueous pretreatment, aqueous hydrolysis, and fermentation under conditions in which at least a part of the fermentable sugars are fermented into a primary target chemical, separating the primary target chemical from the fermented hydrolysate to provide a spent hydrolysate comprising inhibitory substances and detoxifying the spent hydrolysate by decreasing the concentration of at least one of the inhibitory substances using a detoxification biocatalyst selected from the group consisting of wild type, mutant and recombinant filamentous fungi and recirculating at least a part of the detoxified spent hydrolysate, optionally after further purification.
    Type: Application
    Filed: September 30, 2009
    Publication date: September 8, 2011
    Applicant: SEKAB E-TECHNOLOGY AB
    Inventors: Leif Jönsson, Björn Alriksson
  • Patent number: 7381551
    Abstract: The present invention relates to a method for improved ethanol production from xylose utilizing strain of Saccharomyces cerevisiae comprising genes for overexpression of xylose reductase, xylitol dehydrogenase and xylulokinase, wherein in addition to said genes, one or more specific genes of a defined group is overexpressed, and/or one or more genes of a defined group is deleted.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: June 3, 2008
    Assignee: Forskarpatent I Syd AB
    Inventors: Fredrik Wahlbom, Bärbel Hanh-Hägerdal, Leif Jönsson