Patents by Inventor Prity Bengani-Lutz

Prity Bengani-Lutz 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).

  • Fabrication of filtration membranes
    Patent number: 11896937
    Abstract: Disclosed is a method of preparing a filtration membrane. The method includes providing a copolymer solution by dissolving a statistical copolymer in a mixture of a co-solvent and a first organic solvent, coating the copolymer solution onto a porous support layer to form a polymeric layer thereon, coagulating the polymeric layer on top of the support layer to form a thin film composite membrane, and immersing the thin film composite membrane into a water bath to obtain a filtration membrane. Also disclosed are a filtration membrane prepared by the method, and a process of filtering a liquid using the filtration membrane thus prepared.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: February 13, 2024
    Assignee: Trustees of Tufts College
    Inventors: Prity Bengani-Lutz, Ayse Asatekin Alexiou
  • Zwitterion-containing membranes
    Patent number: 11421061
    Abstract: Disclosed is a statistical copolymer that includes both zwitterionic repeat units and hydrophobic repeat units, and a filtration membrane that contains a selective layer formed of the statistical copolymer. Also disclosed are methods of preparing the above-described filtration membrane.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 23, 2022
    Assignee: Trustees of Tufts College
    Inventors: Ayse Asatekin Alexiou, Prity Bengani-Lutz
  • METHOD OF USING TRACK ETCHED MEMBRANES FOR THE FILTRATION OF BIOLOGICAL FLUIDS
    Publication number: 20220106554
    Abstract: Track-etched membranes for filtration are provided. Filtration methods utilizing such membranes and cell culture methods are also provided.
    Type: Application
    Filed: January 30, 2020
    Publication date: April 7, 2022
    Applicant: Repligen Corporation
    Inventors: Craig Robinson, Prity Bengani-Lutz
  • ZWITTERION-CONTAINING MEMBRANES
    Publication number: 20210039054
    Abstract: Disclosed is a statistical copolymer that includes both zwitterionic repeat units and hydrophobic repeat units, and a filtration membrane that contains a selective layer formed of the statistical copolymer. Also disclosed are methods of preparing the above-described filtration membrane.
    Type: Application
    Filed: March 16, 2020
    Publication date: February 11, 2021
    Inventors: Ayse Asatekin Alexiou, Prity Bengani-Lutz
  • Zwitterionic fiber membranes
    Patent number: 10710026
    Abstract: A polymer fiber formed of statistical copolymers, each of which contains zwitterionic repeat units and hydrophobic repeat units, the zwitterionic repeat units constituting 20-75 wt % of the statistical copolymer and the hydrophobic repeat units being characterized in that a homopolymer formed thereof has a glass transition temperature above room temperature. Also disclosed is a fibrous membrane containing such polymer fibers in which greater than 90% of the polymer fibers are each independently rib bon-shaped fibers or wrinkly fibers. A method of preparing such a fibrous membrane is disclosed as well.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 14, 2020
    Assignee: Trustees of Tufts College
    Inventors: Ayse Asatekin, Peggy Cebe, Sefika Ozcan, Prity Bengani-Lutz
  • FABRICATION OF FILTRATION MEMBRANES
    Publication number: 20190262781
    Abstract: Disclosed is a method of preparing a filtration membrane. The method includes providing a copolymer solution by dissolving a statistical copolymer in a mixture of a co-solvent and a first organic solvent, coating the copolymer solution onto a porous support layer to form a polymeric layer thereon, coagulating the polymeric layer on top of the support layer to form a thin film composite membrane, and immersing the thin film composite membrane into a water bath to obtain a filtration membrane. Also disclosed are a filtration membrane prepared by the method, and a process of filtering a liquid using the filtration membrane thus prepared.
    Type: Application
    Filed: October 20, 2017
    Publication date: August 29, 2019
    Inventors: Prity Bengani-Lutz, Ayse Asatekin Alexiou