Patents Assigned to Pall Corporation
  • Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IVa)
    Patent number: 9469733
    Abstract: Disclosed are self-assembled structures prepared from 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. In an embodiment, the block copolymer self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such self-assembled structures 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: October 18, 2016
    Assignee: Pall Corporation
    Inventors: Khaled Abdel-Hakim Helmy Aamer, Selina Shi
  • Robust polymeric membrane
    Patent number: 9469737
    Abstract: Hydrophilic porous membranes comprising a random copolymer of: (a) 2-hydroxyethyl methacrylate of formula (I): (b) an ethylene glycol dimethacrylate of formula (II): and (c) 1,1,1-trimethylolpropane trimethacrylate of formula (III): and a hydrophobic polymer; filters including the membranes, and methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: October 18, 2016
    Assignee: Pall Corporation
    Inventors: Erik M. Heidenreich, Xuemei Liang, Binbing Han
  • HYDROPHILICALLY MODIFIED FLUORINATED MEMBRANE (II)
    Publication number: 20160288059
    Abstract: Disclosed are copolymers which are useful in hydrophilically modifying porous fluoropolymer supports. An example of the copolymers is: Also disclosed are a method of preparing such copolymers, a method of modifying porous fluoropolymer surfaces, and hydrophilic fluoropolymer porous membranes prepared therefrom. Also disclosed is a method of filtering fluids by the use of the hydrophilic fluoropolymer porous membranes.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Applicant: PALL CORPORATION
    Inventors: Khaled Abdel-Hakim Helmy AAMER, Jian QIU, Hassan AIT-HADDOU
  • HYDROPHILICALLY MODIFIED FLUORINATED MEMBRANE (III)
    Publication number: 20160288063
    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: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Applicant: PALL CORPORATION
    Inventors: Hassan AIT-HADDOU, Khaled Abdel-Hakim Helmy AAMER, Jian QIU, Frank Okezie ONYEMAUWA, Marcin STASIAK
  • HYDROPHILICALLY MODIFIED FLUORINATED MEMBRANE (I)
    Publication number: 20160288061
    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 31, 2015
    Publication date: October 6, 2016
    Applicant: PALL CORPORATION
    Inventors: Khaled Abdel-Hakim Helmy AAMER, Jian QIU, Hassan AIT-HADDOU
  • HYDROPHILICALLY MODIFIED FLUORINATED MEMBRANE (IV)
    Publication number: 20160288062
    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: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Applicant: PALL CORPORATION
    Inventors: Hassan AIT-HADDOU, Khaled Abdel-Hakim Helmy AAMER, Marcin STASIAK
  • HYDROPHILICALLY MODIFIED FLUORINATED MEMBRANE (V)
    Publication number: 20160288060
    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: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Applicant: PALL CORPORATION
    Inventors: Khaled Abdel-Hakim Helmy AAMER, Hassan AIT-HADDOU
  • Adjustable frame assemblies, methods for assembling a filter apparatus, and filter apparatuses
    Patent number: 9447911
    Abstract: An adjustable frame assembly for filter modules includes a lower base arrangement, an upper base arrangement, and an adjustable frame structure connected between the lower and upper base arrangements. Both the lower and upper base arrangements include mounts for positioning and supporting the filter modules. At least one of the base arrangements includes a piping system for supplying fluid to and/or receiving fluid from the filter modules. The adjustable frame structure is moveable between a first position, in which the lower and upper base arrangements are spaced a smaller first distance apart, and a second position, in which the lower and upper base arrangements are spaced a larger second distance apart. Filter modules may be mounted to the adjustable frame assembly when the adjustable frame structure is in the second position to form a filter apparatus.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: September 20, 2016
    Assignee: Pall Corporation
    Inventors: Seiya Ohta, Scott W. Osiecki, Todd B. Abernethy
  • Porous polymeric membrane with high void volume
    Patent number: 9446355
    Abstract: Membranes comprising first and second surfaces, the first surface comprising a patterned surface comprising peaks and valleys, first region surfaces comprising peaks, and second region surfaces comprising valleys; a porous bulk between the surfaces, the bulk comprising first region bulks and second region bulks; the region bulks extending from their respective region surfaces, the first region bulks comprising a first set of pores having outer rims, and a second set of pores connecting the outer rims of the first set of pores, and a first polymer matrix supporting the first set of pores; the second region bulks comprising a third set of pores having outer rims, and a fourth set of pores connecting the outer rims of the third set of pores, and a second polymer matrix supporting the third set of pores; filters including the membranes, and methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 20, 2016
    Assignee: PALL CORPORATION
    Inventors: Geoffrey P. LaRue, Yolando David, Shane Edward Harton
  • Self-assembling polymers—I
    Patent number: 9441078
    Abstract: Disclosed are 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 self-assembled into a cylindrical morphology. Also disclosed is a method of preparing such copolymers.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 13, 2016
    Assignee: Pall Corporation
    Inventor: Khaled Abdel-Hakim Helmy Aamer
  • Filter device
    Patent number: 9427512
    Abstract: Devices, systems, and methods for obtaining one or more desired fluid components, using a back-flushable filter device comprising a filter and at least one diffusing plate, are disclosed.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 30, 2016
    Assignee: Pall Corporation
    Inventors: Gerard R. DelGiacco, Paxton E. Provitera
  • Systems and methods for conditioning a filter assembly
    Patent number: 9421498
    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: August 23, 2016
    Assignee: Pall Corporation
    Inventors: Atsushi Sakamoto, Hisayuki Kataoka, Takehito Mizuno, Kazuma Tsutsumi
  • Cell harvesting device and system
    Patent number: 9421317
    Abstract: Devices, methods, and systems for obtaining one or more biological fluid components, and reducing red blood cell contamination, using a back-flushable filter device, are disclosed.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 23, 2016
    Assignee: Pall Corporation
    Inventors: Imran A. Siddiqui, Gerard R. DelGiacco, Paxton E. Provitera
  • Asymmetric membranes
    Patent number: 9415347
    Abstract: Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous zone of the bulk, wherein the first average pore size is larger than the second average pore size, as well as methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 16, 2016
    Assignee: Pall Corporation
    Inventors: Xuemei Liang, Mark Murla, Binbing Han, Donald Simonton, Richard Morris
  • Sensor probe seal
    Patent number: 9410626
    Abstract: A sealing system is provided for preventing leakage of a fluid from a fluid-containing chamber when a sensor probe for measuring fluid conditions within the chamber is inserted into the chamber. The sealing system has at least one port in fluid communication with the fluid-containing chamber. The port has a stem projecting outwardly from the chamber, a tapered flange, and a stem passageway in fluid communication with the chamber interior. A probe seal which is adapted to attach to the stem forms a seal between the port and the sensor probe and prevents fluid in the processing chamber from leaking past the probe seal. The probe seal has spaced-apart inner and outer skirts. The inner skirt forms a seal passageway which is in fluid communication with the chamber, and an inner end disposed to enter the stem passageway when the probe seal is attached to the stem.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: August 9, 2016
    Assignee: Pall Corporation
    Inventor: Nigel David Feltham
  • Hydrophilic block copolymers and membranes prepared therefrom (I)
    Patent number: 9394407
    Abstract: Disclosed are block copolymers of the formula A-B-A (I) or A-B (II), comprising blocks A and B, wherein block A is a hydrophilic polymeric segment comprising polyglycerol and block B is an aromatic hydrophobic polymeric segment. The block copolymers find use as wetting agents in the preparation of porous membranes from aromatic hydrophobic polymers such as polyethersulfone.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 19, 2016
    Assignee: Pall Corporation
    Inventors: Hassan Ait-Haddou, Frank Onyemauwa
  • Processes for removing entrained particulates from a gas
    Patent number: 9393512
    Abstract: In a process for removing entrained particulates from a gas, a chemical reaction may be conducted in a vessel. Conducting the chemical reaction may include suspending particulates in a gas in a fluidized bed in the vessel. A portion of the gas and entrained particulates may be directed to a filter medium and the entrained particulates may be filtered from the gas. Filtering the entrained particulates may include directing the gas from a feed side of the filter medium through the filter medium to a filtrate side of the filter medium and may also include directing at least a portion of the entrained particulates generally tangentially along the feed side of the filter medium to scour the feed side of the filter medium. The particulates may then be directed from the feed side of the filter medium into a dip leg.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: July 19, 2016
    Assignee: Pall Corporation
    Inventor: Kurt R. Schuttenberg
  • Compositions for detecting microorganisms
    Patent number: 9382591
    Abstract: The invention provides nucleic acids, collections of nucleic acids, supports, assay kits, and methods for the sensitive and specific detection of microorganisms in a foodstuff. The nucleic acid comprises a nucleotide sequence selected from the group consisting of SEQ ID NOs: 1-15 and having a length of no more than 35 nucleotides.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 5, 2016
    Assignee: PALL CORPORATION
    Inventors: Yu Wang, Yun Bao
  • Ramped filter vessel
    Patent number: 9377106
    Abstract: A filter vessel has a housing and a lid which together define an internal chamber for carrying a filter. A gasket is positioned between the lid and the housing. In a locked position, the lid and the housing are in sealed contact with the gasket.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: June 28, 2016
    Assignee: Pall Corporation
    Inventor: Ronald Lewis Hartog
  • Multi-chamber freezing bag
    Patent number: 9346571
    Abstract: Methods for preparing and using multiple chambered freezing bags containing biological fluid in the chambers are disclosed.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: May 24, 2016
    Assignee: Pall Corporation
    Inventor: Paxton E. Provitera