Patents by Inventor David Lukas GRZENIA

David Lukas GRZENIA 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: 9592476
    Abstract: Disclosed are membranes formed from self-assembling block copolymers, for example, a diblock copolymer of the formula (I): wherein R1-R4, n, and m are as described herein, which find use in preparing nanoporous membranes. Embodiments of the membranes contain the block copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves hybrid casting a polymer solution containing the block copolymer to obtain a thin film, followed by evaporation of some of the solvent from the thin film, and coagulating the resulting this film in a bath containing a nonsolvent or poor solvent for the block copolymer.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 14, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, David Lukas Grzenia
  • Patent number: 9592477
    Abstract: Disclosed are membranes formed from self-assembling diblock copolymers of the formula (I): wherein R1-R4, n, and m are as described herein, which find use in preparing porous membranes. Embodiments of the membranes contain the diblock copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such a membrane which involves hybrid casting a polymer solution containing the diblock copolymer to obtain a thin film, followed by evaporation of some of the solvent from the thin film, and coagulating the resulting this film in a bath containing a nonsolvent or poor solvent for the diblock copolymer.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 14, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, David Lukas Grzenia
  • Publication number: 20150343395
    Abstract: Disclosed are membranes formed from self-assembling block copolymers, for example, a diblock copolymer of the formula (I): wherein R1-R4, n, and m are as described herein, which find use in preparing nanoporous membranes. Embodiments of the membranes contain the block copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves hybrid casting a polymer solution containing the block copolymer to obtain a thin film, followed by evaporation of some of the solvent from the thin film, and coagulating the resulting this film in a bath containing a nonsolvent or poor solvent for the block copolymer.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Inventors: Khaled Abdel-Hakim Helmy AAMER, David Lukas GRZENIA
  • Publication number: 20150343396
    Abstract: Disclosed are membranes formed from self-assembling diblock copolymers of the formula (I): wherein R1-R4, n, and m are as described herein, which find use in preparing porous membranes. Embodiments of the membranes contain the diblock copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such a membrane which involves hybrid casting a polymer solution containing the diblock copolymer to obtain a thin film, followed by evaporation of some of the solvent from the thin film, and coagulating the resulting this film in a bath containing a nonsolvent or poor solvent for the diblock copolymer.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Inventors: Khaled Abdel-Hakim Helmy AAMER, David Lukas GRZENIA