Patents by Inventor Felix Weinwurm

Felix Weinwurm 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).

  • Production of lignin particles
    Patent number: 11174354
    Abstract: The invention relates to a method for producing lignin particles, comprising the steps of: a) extracting lignin from a lignincontaining starter material, using a mixture that comprises at least one organic solvent and water, and b) precipitating the lignin in the solution from step a).
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 16, 2021
    Assignee: TECHNISCHE UNIVERSITÄT WIEN
    Inventors: Anton Friedl, Felix Weinwurm, Stefan Beisl
  • PRODUCTION OF LIGNIN PARTICLES
    Publication number: 20200071468
    Abstract: The invention relates to a method for producing lignin particles, comprising the steps of: a) extracting lignin from a lignincontaining starter material, using a mixture that comprises at least one organic solvent and water, and b) precipitating the lignin in the solution from step a).
    Type: Application
    Filed: December 22, 2017
    Publication date: March 5, 2020
    Inventors: Anton FRIEDL, Felix WEINWURM, Stefan BEISL
  • Method for working up an aqueous lignin containing solution
    Patent number: 9714264
    Abstract: A method for working up an aqueous, alkaline-alcoholic and lignin containing solution via nanofiltration, wherein a permeate and a retentate are obtained, which permeate is an aqueous, lignin-starved solution and which retentate is an aqueous lignin-enriched solution.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 25, 2017
    Assignee: ANNIKKI GMBH
    Inventors: Anton Friedl, Abdel Halim Fuqaha, Felix Weinwurm, Thomas Ters
  • METHOD FOR WORKING UP AN AQUEOUS LIGNIN CONTAINING SOLUTION
    Publication number: 20140329999
    Abstract: A method for working up an aqueous, alkaline-alcoholic and lignin containing solution via nanofiltration, wherein a permeate and a retentate are obtained, which permeate is an aqueous, lignin-starved solution and which retentate is an aqueous lignin-enriched solution
    Type: Application
    Filed: November 6, 2012
    Publication date: November 6, 2014
    Applicant: ANNIKKI GMBH
    Inventors: Anton Friedl, Abdel Halim Fuqaha, Felix Weinwurm, Thomas Ters