Patents by Inventor Rachel M. Dorin

Rachel M. Dorin 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: 11802200
    Abstract: The invention provides systems and methods for substantially improving the compaction resistance of isoporous block copolymer (BCP) film by adding a high molecular weight hydrophilic additive in the casting dope formulation. Systems and methods disclosed also disclose several other multifunctional enhancements to film properties including: low fouling propensity, improved permeability, improved permeability retention upon drying, and ability to tune the substructure and pore size of these novel BCP films. These porous BCP films are useful in filtration and separations applications and are amenable to standard manufacturing practices.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: October 31, 2023
    Assignee: TeraPore Technologies, Inc.
    Inventors: Jayraj K. Shethji, Rachel M. Dorin, Spencer Robbins
  • Patent number: 11571667
    Abstract: A mesoporous isoporous asymmetric material includes at least one diblock or multiblock copolymer, wherein the material has a transition layer having a thickness of at least 300 nm and a low macrovoid density, and the material has a sub-structure adjacent to said transition layer and said sub-structure comprises a high macrovoid density. A method for producing mesoporous isoporous asymmetric materials having macrovoids can include: dissolving at least one diblock or multiblock copolymer in a solution, the solution having one or more solvents and one or more nonsolvents, to form a polymer solution; dispensing the polymer solution onto a substrate or mold, or through a die or template; removing at least a portion of solvent and/or nonsolvent from the polymer solution to form a concentrated polymer solution; and exposing the concentrated polymer solution to a nonsolvent causing precipitation of at least a portion of the polymer from the concentrated polymer solution.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 7, 2023
    Assignee: TeraPore Technologies, Inc.
    Inventors: Rachel M. Dorin, Yibei Gu, Jayraj K. Shethji, Spencer Robbins
  • Patent number: 11572424
    Abstract: Multi-block isoporous structures for non-aqueous and/or harsh chemical media having at least one of high separation specificity, chemical resistance, and antifouling properties, methods of manufacturing and use, for replacements or alternatives to existing separation membrane technologies.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: February 7, 2023
    Assignee: TeraPore Technologies, Inc.
    Inventors: Spencer W. Robbins, Rachel M. Dorin
  • Patent number: 11567072
    Abstract: Compositions and methods are described for self-assembled polymer materials having at least one of macro, meso, or micro pores.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 31, 2023
    Assignee: TeraPore Technologies, Inc.
    Inventors: Rachel M. Dorin, Spencer Robbins, Mark Hurwitz
  • Publication number: 20220411596
    Abstract: A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer. The surface layer can have at least 1×1014 pores/m2 and a pore size distribution (dmax/dmin)) of less than 3. The bulk layer has an asymmetric structure. The films can be used in filtration applications.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 29, 2022
    Inventors: Ulrich B. Wiesner, Rachel M. Dorin, Joerg Werner, William A. Phillip
  • Patent number: 11466134
    Abstract: A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer. The surface layer can have at least 1×1014 pores/m2 and a pore size distribution (dmax/dmin)) of less than 3. The bulk layer has an asymmetric structure. The films can be used in filtration applications.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 11, 2022
    Assignees: CORNELL UNIVERSITY, YALE UNIVERSITY
    Inventors: Ulrich B. Wiesner, Rachel M. Dorin, Joerg Werner, William A. Phillip
  • Publication number: 20220251366
    Abstract: The invention provides systems and methods for substantially improving the compaction resistance of isoporous block copolymer (BCP) film by adding a high molecular weight hydrophilic additive in the casting dope formulation. Systems and methods disclosed also disclose several other multifunctional enhancements to film properties including: low fouling propensity, improved permeability, improved permeability retention upon drying, and ability to tune the substructure and pore size of these novel BCP films. These porous BCP films are useful in filtration and separations applications and are amenable to standard manufacturing practices.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Inventors: Jayraj K. SHETHJI, Rachel M. DORIN, Spencer ROBBINS
  • Patent number: 11401411
    Abstract: The invention provides systems and methods for substantially improving the compaction resistance of isoporous block copolymer (BCP) film by adding a high molecular weight hydrophilic additive in the casting dope formulation. Systems and methods disclosed also disclose several other multifunctional enhancements to film properties including: low fouling propensity, improved permeability, improved permeability retention upon drying, and ability to tune the substructure and pore size of these novel BCP films. These porous BCP films are useful in filtration and separations applications and are amenable to standard manufacturing practices.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: August 2, 2022
    Inventors: Jayraj K. Shethji, Rachel M. Dorin, Spencer Robbins
  • Publication number: 20210370237
    Abstract: Methods of filtering a feed comprising a liquid or a gas for or during the production of electronics, nanosystems or ultrapure water include filtering said feed using at least one filter assembly, wherein said at least one filter assembly includes at least one isoporous block copolymer filtration membrane.
    Type: Application
    Filed: October 7, 2019
    Publication date: December 2, 2021
    Applicant: TeraPore Technologies, Inc.
    Inventors: Rachel M. Dorin, Spencer Robbins
  • Publication number: 20210146316
    Abstract: A method for fractionating a liquid include contacting a liquid comprising at least one type of encapsulating particle with at least one mesoporous isoporous block copolymer material, wherein at least one component of the liquid is separated. A device for fractionating a liquid having encapsulating particles includes at least one mesoporous isoporous block copolymer material. The device can further include an inlet to allow the liquid to contact the mesoporous isoporous block copolymer material, and an outlet to allow passage of the fractionated liquid. In some instances, the device can be a pleated capsule, a flat sheet cassette, a spiral wound module, a hollow fiber module, a syringe filter, a microcentrifuge tube, a centrifuge tube, a spin column, a multiple well plate, a vacuum filter, a flat sheet, or a pipette tip.
    Type: Application
    Filed: April 4, 2019
    Publication date: May 20, 2021
    Inventors: Rachel M. Dorin, Spencer Robbins
  • Publication number: 20210040281
    Abstract: Embodiments disclosed herein provide a pleatable freestanding isoporous block-copolymer (“BCP”) thin films fabricated sans substrate at a size suitable for fabricating pleated cartridges. The thin films have narrow pore size distribution, are mechanically robust, and have exceptional separation performance. These porous BCP thin films are useful as filtration media and separation membranes and are amenable to standard manufacturing practices.
    Type: Application
    Filed: March 12, 2019
    Publication date: February 11, 2021
    Inventors: Rachel M. Dorin, Spencer Robbins, Jayraj K. Shethji
  • Publication number: 20210008507
    Abstract: A mesoporous isoporous asymmetric material includes at least one diblock or multiblock copolymer, wherein the material has a transition layer having a thickness of at least 300 nm and a low macrovoid density, and the material has a sub-structure adjacent to said transition layer and said sub-structure comprises a high macrovoid density. A method for producing mesoporous isoporous asymmetric materials having macrovoids can include: dissolving at least one diblock or multiblock copolymer in a solution, the solution having one or more solvents and one or more nonsolvents, to form a polymer solution; dispensing the polymer solution onto a substrate or mold, or through a die or template; removing at least a portion of solvent and/or nonsolvent from the polymer solution to form a concentrated polymer solution; and exposing the concentrated polymer solution to a nonsolvent causing precipitation of at (least a portion of the polymer from the concentrated polymer solution.
    Type: Application
    Filed: March 12, 2019
    Publication date: January 14, 2021
    Applicant: TeraPore Technologies, Inc.
    Inventors: Rachel M. Dorin, Yibei Gu, Jayraj K. Shethji
  • Publication number: 20200360871
    Abstract: Isoporous block copolymers of cross-linked structures, and methods of preparing, which are resistant to harsh solvent conditions from organic, acidic or basic materials are disclosed.
    Type: Application
    Filed: September 19, 2018
    Publication date: November 19, 2020
    Applicant: TeraPore Technologies, Inc.
    Inventors: Jae C. Cho, Nanetta Pon, Spencer William Robbins, Rachel M. Dorin
  • Publication number: 20200339770
    Abstract: A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer. The surface layer can have at least 1×1014 pores/m2 and a pore size distribution (dmax/dmin)) of less than 3. The bulk layer has an asymmetric structure. The films can be used in filtration applications.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Inventors: Ulrich B. Wiesner, Rachel M Dorin, Joerg Werner, William A. Phillip
  • Publication number: 20200232978
    Abstract: Compositions and methods are described for self-assembled polymer materials having at least one of macro, meso, or micro pores.
    Type: Application
    Filed: February 22, 2018
    Publication date: July 23, 2020
    Applicant: TeraPore Technologies, Inc.
    Inventors: Rachel M. Dorin, Spencer Robbins, Mark Hurwitz
  • Patent number: 10711111
    Abstract: A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer. The surface layer can have at least 1×1014 pores/m2 and a pore size distribution (dmax/dmin)) of less than 3. The bulk layer has an asymmetric structure. The films can be used in filtration applications.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: July 14, 2020
    Assignees: Cornell University, Yale University
    Inventors: Ulrich B. Wiesner, Rachel M. Dorin, Joerg Werner, William A. Phillip
  • Publication number: 20200199264
    Abstract: Multi-block isoporous structures for non-aqueous and/or harsh chemical media having at least one of high separation specificity, chemical resistance, and antifouling properties, methods of manufacturing and use, for replacements or alternatives to existing separation membrane technologies.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 25, 2020
    Applicant: TeraPore Technologies, Inc.
    Inventors: Spencer W. Robbins, Rachel M. Dorin
  • Publication number: 20190367723
    Abstract: The invention provides systems and methods for substantially improving the compaction resistance of isoporous block copolymer (BCP) film by adding a high molecular weight hydrophilic additive in the casting dope formulation. Systems and methods disclosed also disclose several other multifunctional enhancements to film properties including: low fouling propensity, improved permeability, improved permeability retention upon drying, and ability to tune the substructure and pore size of these novel BCP films. These porous BCP films are useful in filtration and separations applications and are amenable to standard manufacturing practices.
    Type: Application
    Filed: November 13, 2017
    Publication date: December 5, 2019
    Inventors: Jayraj K. Shethji, Rachel M. Dorin, Spencer Robbins
  • Publication number: 20190307610
    Abstract: A wound treating article, system and kit, and methods of assembly and treating are provided where nanoporous isoporous membranes are pathogen tuned are combined with resilient, flexible or elastic supports to provide tailored wound treating bandages and/or kits for the medical industry.
    Type: Application
    Filed: November 21, 2017
    Publication date: October 10, 2019
    Applicant: TeraPore Technologies, Inc.
    Inventors: John Ho, Rachel M. Dorin
  • Publication number: 20170022337
    Abstract: A method for forming an isoporous graded film comprising multiblock copolymers and isoporous graded films. The films have a surface layer and a bulk layer. The surface layer can have at least 1×1014 pores/m2 and a pore size distribution (dmax/dmin)) of less than 3. The bulk layer has an asymmetric structure. The films can be used in filtration applications.
    Type: Application
    Filed: October 5, 2016
    Publication date: January 26, 2017
    Inventors: Ulrich B. Wiesner, Rachel M. Dorin, Joerg Werner, William A. Phillip