Patents Assigned to Pall Corporation
  • Hydrophilic block copolymers and membranes prepared therefrom (II)
    Patent number: 9718924
    Abstract: Disclosed is a block copolymer of the formula: A-B-A (I) or A-B (II), wherein block A is: (i) a polymer of allyl glycidyl ether or (ii) a polymer of allyl glycidyl ether wherein one more of the allyl groups have been replaced with 1,2-dihydroxypropyl group or a group of the formula: —(CH2)a—S—(CH2)b—X, wherein a, b, and X are defined herein. The block copolymers find use as wetting agents in the preparation of porous membranes from aromatic hydrophobic polymers such as polyethersulfone. Also disclosed are methods of preparing such block copolymers and porous membranes therefrom.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 1, 2017
    Assignee: Pall Corporation
    Inventors: Hassan Ait-Haddou, Frank Onyemauwa
  • Bioprocessing container tube system and method of use
    Patent number: 9714405
    Abstract: Bioprocessing container tube management systems, totes including the systems, and methods of using the systems, are disclosed.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: July 25, 2017
    Assignee: PALL CORPORATION
    Inventors: Michael B. Seal, Nicholas L. Yoward
  • Filters and filter arrangements which include a filter and a manifold assembly
    Patent number: 9713782
    Abstract: A filter has first and second fittings, a permeable filter medium, and a housing. The housing defines a fluid flow path within the housing between the first and second fittings, and the permeable filter medium is arranged in the fluid flow path to remove one or more substances from a fluid flowing along the fluid flow path. A reservoir is positioned in an upper region of the housing and includes a wall surrounding the first and second fittings of the filter. Each of the fittings has a topmost portion and the wall of the reservoir has a topmost portion, the topmost portion of each filter fitting being at or below the topmost portion of the reservoir wall. A filter arrangement may include a filter and a manifold assembly having first and second fittings which may be sealingly coupled to or uncoupled from the first and second fittings of the filter.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: July 25, 2017
    Assignee: Pall Corporation
    Inventors: Vincent Lam, Jacob Peter Vanderheyden, Mark William Foohey, Tatsuya Hoshino
  • HYDROPHILICALLY MODIFIED FLUORINATED MEMBRANE (I)
    Publication number: 20170197184
    Abstract: Disclosed are polymers suitable for hydrophilically modifying the surface of porous fluoropolymer supports, for example, a copolymer of the formula: Also disclosed are a method of preparing the polymers, a method of hydrophilically modifying porous fluoropolymer supports, hydrophilic fluoropolymer porous membranes prepared from the polymers, and a method of filtering fluids through the porous membranes.
    Type: Application
    Filed: March 29, 2017
    Publication date: July 13, 2017
    Applicant: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Jian Qiu, Hassan Ait-Haddou
  • Support for biocontainer bag
    Patent number: 9687852
    Abstract: Supports for biocontainer bags and systems, and methods of using the supports and systems, are disclosed.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 27, 2017
    Assignee: PALL CORPORATION
    Inventors: Michael B. Seal, Paul Clark
  • Aseptic sampling system
    Patent number: 9675520
    Abstract: An aseptic sampling system comprises sampler and interface assemblies. Each assembly comprises a housing defining separate sterile enclosures. An air lock provides aseptic joining of the enclosures within the sampler and interface assemblies, and a re-sealable liquid connection mechanism operates within the lock. The sampler and interface assemblies, when connected, form an outer protective surface comprising the housings of the sampler and interface assemblies, the protective surface providing a sterile internal enclosure and air lock and an air-tight barrier between outer non-sterile, and inner sterile, atmospheres.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: June 13, 2017
    Assignee: Pall Corporation
    Inventors: Samson Salman Rogers, David Micah Katz, Neil Pollock
  • Method for treating a fluid, in particular a beverage
    Patent number: 9670441
    Abstract: A method for treating a fluid is provided using a particulate material in the form of a deposited layer having an upstream side and a downstream side wherein a flow of the fluid is directed through the deposited layer from the upstream to the downstream side at a first temperature. The method includes reconditioning the deposited layer and then resuming treatment of the fluid, wherein reconditioning comprises heating the deposited layer to a second temperature; and cooling the deposited layer to a third temperature at an average cooling rate in the range of up to about 20° C./min.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 6, 2017
    Assignee: PALL CORPORATION
    Inventors: Martin Zeiler, Ralf Ascher, Roland Müller, Harry Frison
  • Hot gas filtration system and process for regenerating said system
    Patent number: 9669344
    Abstract: The present invention relates to a hot gas filtration system and a process for regenerating such a hot gas filtration system, said filtration system comprising a filter vessel, a tubesheet separating the interior of said filter vessel into a raw gas section and a clean gas section, and a plurality of filter elements. Said filter elements, arranged in two or more groups, are connected to the tubesheet with a clean end and extend with a raw gas portion into the raw gas section. Two or more plenum chambers are accommodated in the clean gas section and groupwise accommodate the clean gas ends of the filter elements, each of said plenum chambers comprising a gas exchange opening providing a direct fluid communication with the clean gas section.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: June 6, 2017
    Assignee: Pall Corporation
    Inventors: Steffen Heidenreich, Walter Haag
  • Gas evacuation system and method
    Patent number: 9663259
    Abstract: Gas evacuation systems for removing gas from flexible bags, and methods of using the systems, are disclosed.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 30, 2017
    Assignee: PALL CORPORATION
    Inventor: Nathan Todd
  • Systems and methods for conditioning a filter assembly
    Patent number: 9656197
    Abstract: Systems and methods condition a filter assembly. Purging liquid is passed through the filter assembly to remove contaminants from the pores and voids of the filter medium and from the upstream and downstream sides of the filter medium.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 23, 2017
    Assignee: PALL CORPORATION
    Inventors: Michael Joseph Mesawich, Joseph Bica, Michael Stuart Sevegney, Glenn Dado, Barry Gotlinsky, Richard E Novak
  • Hydrophilically modified fluorinated membrane (III)
    Patent number: 9649603
    Abstract: Disclosed are copolymers suitable for hydrophilically modifying the surface of fluoropolymer membranes. An example of the copolymers is: Also disclosed are a method of preparing the copolymers, a method of hydrophilically modifying porous fluoropolymer supports, hydrophilic porous fluoropolymer membranes prepared from the copolymers, and a method of filtering fluids by the use of the hydrophilic porous fluoropolymer membranes.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 16, 2017
    Assignee: Pall Corporation
    Inventors: Hassan Ait-Haddou, Khaled Abdel-Hakim Helmy Aamer, Jian Qiu, Frank Okezie Onyemauwa, Marcin Stasiak
  • Hydrophilically modified fluorinated membrane (IV)
    Patent number: 9643130
    Abstract: Disclosed are copolymers which are useful in hydrophilically modifying fluoropolymer membranes. An example of the copolymers is: Also disclosed are a method of preparing such copolymers, a method of modifying fluoropolymer membrane surfaces, and hydrophilic fluoropolymer porous membranes prepared from the copolymers.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 9, 2017
    Assignee: Pall Corporation
    Inventors: Hassan Ait-Haddou, Khaled Abdel-Hakim Helmy Aamer, Marcin Stasiak
  • Hydrophilic porous polytetrafluoroethylene membrane (I)
    Patent number: 9643131
    Abstract: Disclosed are hydrophilic porous PTFE membranes comprising PTFE and an amphiphilic copolymer, for example, a copolymer of the formula: wherein m and n are as described herein. Also disclosed are a method of preparing hydrophilic porous PTFE membranes and a method of filtering fluids through such membranes.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 9, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Hassan Ait-Haddou, Marcin Stasiak, Amarnauth Singh
  • Hydrophilically modified fluorinated membrane (I)
    Patent number: 9636641
    Abstract: Disclosed are polymers suitable for hydrophilically modifying the surface of porous fluoropolymer supports, for example, a copolymer of the formula: Also disclosed are a method of preparing the polymers, a method of hydrophilically modifying porous fluoropolymer supports, hydrophilic fluoropolymer porous membranes prepared from the polymers, and a method of filtering fluids through the porous membranes.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 2, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Jian Qiu, Hassan Ait-Haddou
  • Hydrophilically modified fluorinated membrane (V)
    Patent number: 9630151
    Abstract: Disclosed are copolymers suitable for hydrophilically modifying the surface of fluoropolymer porous membranes, for example, a copolymer of the formula: wherein R, n, m, and x are as defined herein. Also disclosed are a method of preparing the copolymers, a method of hydrophilically modifying porous fluoropolymer supports, and composite hydrophilic fluoropolymer porous membranes prepared from the copolymers.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: April 25, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Hassan Ait-Haddou
  • Composite porous polymeric membrane with high void volume
    Patent number: 9610548
    Abstract: Composite membranes comprising a layer having first and second microporous surfaces and a bulk between the surfaces, the bulk comprising a first set of pores having outer rims, and a second set of pores connecting the rims, and a polymer matrix supporting the first set of pores; and, a second layer having first and second porous surfaces and a second bulk between the porous surfaces, wherein the second bulk comprises a fibrous matrix; or, first and second microporous surfaces and a second bulk between the microporous surfaces, the second bulk comprising: a third set of pores having outer rims and a fourth set of pores connecting the rims, and a polymer matrix supporting the third set of pores; a third set of pores prepared by phase inversion; or, a fibrous matrix; or, a third set of pores prepared by stretching, track etching or e-beam, are disclosed.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: April 4, 2017
    Assignee: Pall Corporation
    Inventors: Yolando David, Shane Edward Harton, Amarnauth Singh
  • Membrane comprising self-assembled block copolymer and process for producing the same by spray coating (IIc)
    Patent number: 9604181
    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 spray coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 28, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Amarnauth Singh, Selina Shi
  • Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (VIa)
    Patent number: 9598543
    Abstract: Disclosed are self-assembled structures 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. In an embodiment, the block copolymer self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves spin coating a polymer solution containing the block copolymer to obtain a thin film, followed by solvent annealing of the film. Further disclosed is a method of preparing porous membranes from the self-assembled structures.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 21, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Selina Shi
  • Membrane comprising self-assembled block copolymer and process for producing the same by spin coating (IIa)
    Patent number: 9593219
    Abstract: Disclosed are membranes formed from self-assembling block copolymers, for example, diblock copolymers 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 a block copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves spin coating a polymer solution containing the block copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 14, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Selina Shi
  • Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (Va)
    Patent number: 9593217
    Abstract: Disclosed are self-assembled structures formed from a self-assembling diblock copolymer of the formula (I): wherein R1-R4, n, and m are as described herein, which find use in preparing porous membranes. In an embodiment, the diblock copolymer is present in the self-assembled structures in a cylindrical morphology. Also disclosed is a method of preparing a self-assembled structure, which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by solvent annealing of the film.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 14, 2017
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Selina Shi