Patents by Inventor Steven R. Pearl

Steven R. Pearl 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).

  • Publication number: 20230093783
    Abstract: Disclosed herein are robust disposable alternating tangential flow (ATF) housing and diaphragm pump units and associated methods of manufacturing, testing, wetting, and using the same.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Applicant: Repligen Corporation
    Inventors: Travis R. Ward, Steven R. Pearl, Adam Malone, Tim Erlandson
  • Publication number: 20220008803
    Abstract: Disclosed herein are robust disposable alternating tangential flow (ATF) housing and diaphragm pump units and associated methods of manufacturing, testing, wetting, and using the same.
    Type: Application
    Filed: September 23, 2021
    Publication date: January 13, 2022
    Applicant: Repligen Corporation
    Inventors: Travis R. Ward, Steven R. Pearl, Adam Malone, Tim Erlandson
  • Patent number: 11156219
    Abstract: Disclosed herein are robust disposable alternating tangential flow (ATF) housing and diaphragm pump units and associated methods of manufacturing, testing, wetting, and using the same.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 26, 2021
    Assignee: Repligen Corporation
    Inventors: Travis R. Ward, Steven R. Pearl, Adam Malone, Tim Erlandson
  • Publication number: 20180238317
    Abstract: Disclosed herein are robust disposable alternating tangential flow (ATF) housing and diaphragm pump units and associated methods of manufacturing, testing, wetting, and using the same.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 23, 2018
    Inventors: Travis R. Ward, Steven R. Pearl, Adam Malone, Tim Erlandson
  • Patent number: 6824679
    Abstract: The present invention provides methods for producing single and multi-layered coiled hollow fiber bundles for use in separation modules whose performance can be predicted, said modules being designed to take advantage of the benefits of Dean vortices. The present invention is also directed to multi-layered coiled hollow fiber bundles for use in separation modules that are directly scalable because each layer performs substantially equivalently to the other layers when subjected to a fluid of a certain velocity such that Dean vortices are created.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: November 30, 2004
    Assignee: Millipore Corporation
    Inventors: Stephen Dzengeleski, Steven R. Pearl, Ralf Kuriyel
  • Patent number: 6709598
    Abstract: One or more hollow fiber membranes having a coflow of filtrate to provide trans-membrane pressure (TMP) control. The membranes preferably are capable or forming a shear effect or Dean vortices at their inner surface. Optionally, the filtrate channel may contain one or more types of beads, either inert or formed of a capture resin such as affinity chromatography beads or ion exchange resins, for selectively capturing and retaining certain molecules from the filtrate of feedstream. The beads, in addition to the optional capture function, aid in the control of the TMP.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: March 23, 2004
    Assignee: Millipore Corporation
    Inventor: Steven R. Pearl
  • Publication number: 20030052054
    Abstract: A filter construction is provided having a packing density of at least 300 square meters of active membrane filter area per cubic meter of external volume of said filter construction, said filter constructed of materials characterized by less than 250 mg of extracted contamination per m2 of wetted material.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 20, 2003
    Inventors: Steven R. Pearl, Mark E. Chisholm, Wayne S. Merrill
  • Patent number: 6524513
    Abstract: A filtration apparatus is provided which is formed from multilayer presealed elements and monolayer elements that are insert molded together. The device is provided with a feed port, a filtrate port and, optionally, a retentate port. The sealing configuration of the presealed elements and the seal provided by the insert molding step effect a seal configuration that causes a feed liquid to be filtered to form a filtrate such that the filtrate is not mixed with either the feed or a retentate.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: February 25, 2003
    Inventors: Steven R. Pearl, Wayne S. Merrill, Cristopher J. Petersen
  • Patent number: 6131649
    Abstract: A heat exchange apparatus is provided which is formed from at least one multilayer presealed element and at least one monolayer element that are insert molded together. The heat exchange apparatus is provided with an inlet and an outlet for a process fluid and at least one inlet and at least one outlet for a heat exchange fluid. The sealing configuration of the presealed elements and the seal provided by the insert molding effect a seal configuration that causes heat to be transferred between the process fluid and the heat exchange fluid while preventing mass transfer between the two fluids.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: October 17, 2000
    Assignee: Millipore Corporation
    Inventors: Steven R. Pearl, Charles D. Christy
  • Patent number: 5922200
    Abstract: A filtration apparatus for deadend filtration is provided which is formed from multilayer presealed elements and monolayer elements that are insert molded together. The device is provided with a feed port, and a filtrate port. The sealing configuration of the presealed elements and the seal provided by the insert molding step effect a seal configuration that causes a feed liquid to be filtered to form a filtrate such that the filtrate is not mixed with the feed.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: July 13, 1999
    Assignee: Millipore Corporation
    Inventors: Steven R. Pearl, Wayne S. Merrill, Cristopher J. Petersen
  • Patent number: 5862856
    Abstract: A heat exchange apparatus is provided which is formed from at least one multilayer presealed element and at least one monolayer element that are insert molded together. The heat exchange apparatus is provided with an inlet and an outlet for a process fluid and at least one inlet and at least one outlet for a heat exchange fluid. The sealing configuration of the presealed elements and the seal provided by the insert molding effect a seal configuration that causes heat to be transferred between the process fluid and the heat exchange fluid while preventing mass transfer between the two fluids.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: January 26, 1999
    Assignee: Millipore Corporation
    Inventors: Steven R. Pearl, Charles D. Christy
  • Patent number: 5824217
    Abstract: A filtration apparatus is provided which is formed from multilayer presealed elements and monolayer elements that are insert molded together. The device is provided with a feed port, a filtrate port and, optionally, a retentate port. The sealing configuration of the presealed elements and the seal provided by the insert molding step effect a seal configuration that causes a feed liquid to be filtered to form a filtrate such that the filtrate is not mixed with either the feed or a retentate.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: October 20, 1998
    Assignee: Millipore Corporation
    Inventors: Steven R. Pearl, Wayne S. Merrill, Christopher J. Petersen
  • Patent number: 5599447
    Abstract: A manifold segment is provided for tangential flow filtration apparatus. The manifold segment includes a fluid feed conduit, a retentate conduit, a filtrate inlet and a filtrate outlet. An adaptor manifold is provided which directs filtrate from the manifold segment into a tangential flow filtration module and directs filtrate from the module into the manifold segment. Filtrate introduced into the tangential flow filtrate module reduces pressure drop across a filter layer in the module.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 4, 1997
    Assignee: Millipore Investment Holdings Limited
    Inventors: Steven R. Pearl, Andrew G. Proulx, Brian Hillier
  • Patent number: 5128037
    Abstract: A spiral wound filtration cartridge construction is provided which includes a cartridge positioned within a solid outer cylinder which, in turn is positioned within a solid housing. Fluid flow within the space between the outer cylinder and housing is controlled by an end plate construction. The rigid solid end plate construction includes outer peripheral holes, the sizes and number of which are set to determine by-pass flow.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: July 7, 1992
    Assignee: Millipore Corporation
    Inventors: Steven R. Pearl, Peter M. Dansky