Patents by Inventor Andreas Schweigart

Andreas Schweigart 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).

  • POLYSACCHARIDE FILM AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20180371193
    Abstract: The present invention relates to a method for the production of films made of polysaccharides which, as a fiber-forming substance, contain ?(1?3)-glucan, as well as to the films made thereof and to their use.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 27, 2018
    Inventors: Franz Dürnberger, Andreas Schweigart, Gerold Riedl, Elisabeth Reiter, Gert Kroner
  • POLYSACCHARIDE FILM AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20170283568
    Abstract: The present invention relates to a method for the production of films made of polysaccharides which, as a fiber-forming substance, contain ?(1?3)-glucan, as well as to the films made thereof and to their use.
    Type: Application
    Filed: May 24, 2017
    Publication date: October 5, 2017
    Inventors: Franz Dürnberger, Andreas Schweigart, Gerold Riedl, Elisabeth Reiter, Gert Kroner
  • Polysaccharide film and method for the production thereof
    Patent number: 9701800
    Abstract: The present invention relates to a method for the production of films made of polysaccharides which, as a fiber-forming substance, contain ?(1?3)-glucan, as well as to the films made thereof and to their use.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: July 11, 2017
    Assignee: LENZING AKTIENGESELLSCHAFT
    Inventors: Franz Dümberger, Andreas Schweigart, Gerold Riedl, Elisabeth Reiter, Gert Kroner
  • POLYSACCHARIDE FILM AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20160053061
    Abstract: The present invention relates to a method for the production of films made of polysaccharides which, as a fiber-forming substance, contain ?(1?3)-glucan, as well as to the films made thereof and to their use.
    Type: Application
    Filed: April 10, 2014
    Publication date: February 25, 2016
    Applicant: LENZING AG
    Inventors: Franz Dürnberger, Andreas Schweigart, Gerold Riedl, Elisabeth Beiter, Gert Kroner
  • Process for the production of cellulosic moulded bodies
    Patent number: 6165401
    Abstract: The invention relates to a process for the manufacture of cellulosic flat films and cellulosic membranes in the form of flat membranes whereby a solution of cellulose in an aqueous tertiary amine oxide is moulded in film form using an extrusion nozzle which has an oblong extrusion gap and is led into a precipitation bath via an air gap whereby the cellulosic flat film is formed in the precipitation bath, characterized in that the cellulosic flat film is stretched in the transverse direction after entering the precipitation bath.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: December 26, 2000
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Christian Schlossnikl, Peter Gspaltl, Johann Kalleitner, Gerold Riedl, Andreas Schweigart
  • Process for forming a cellulose sponge
    Patent number: 6007750
    Abstract: The invention is concerned with a cellulose sponge which may be produced by mixing a solution of cellulose in an aqueous tertiary amine-oxide with a pore forming agent and a sponging agent and subsequently exposing it to conditions which cause a decomposition of the sponging agent and a foaming of the cellulose solution, whereafter the foamed cellulose is contacted with water to precipitate the cellulose.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: December 28, 1999
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Heinrich Firgo, Siegfried Ambrosch, Andreas Schweigart
  • Process for the production of cellulosic moulded bodies
    Patent number: RE38583
    Abstract: The invention relates to a process for the manufacture of cellulosic flat films and cellulosic membranes in the form of flat membranes whereby a solution of cellulose in an aqueous tertiary amine oxide is moulded in film form using an extrusion nozzle which has an oblong extrusion gap and is led into a precipitation bath via an air gap whereby the cellulosic flat film is formed in the precipitation bath, characterized in that the cellulosic flat film is stretched in the transverse direction after entering the precipitation bath.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: September 14, 2004
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Christian Schlossnikl, Peter Gspaltl, Johann Kalleitner, Gerold Riedl, Andreas Schweigart