Patents Assigned to Northfield Laboratories, Inc.
  • Patent number: 7521417
    Abstract: A process is disclosed for the preparation of an essentially tetramer-free, substantially stroma-free, polymerized, pyridoxylated hemoglobin. Also disclosed is an essentially tetramer-free, substantially stroma-free, polymerized, pyridoxylated hemoglobin product capable of being infused into human patients in an amount of up to about 5 liters.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: April 21, 2009
    Assignee: Northfield Laboratories, Inc.
    Inventors: Richard E. DeWoskin, Marc D. Doubleday
  • Patent number: 7435795
    Abstract: A hemoglobin solution packaged in a flexible oxygen-impermeable container system. The container system includes a multi-layer film having at least a product contact layer, an oxygen and moisture barrier layer and an exterior layer. The flexible container system further includes an interface port for filling the flexible container with the hemoglobin solution and delivering the hemoglobin solution. The hemoglobin solution comprises a substantially stroma and tetramer free, cross linked, pyridoxylated hemoglobin solution including preservatives such as ascorbic acid, glycine and dextrose.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 14, 2008
    Assignee: Northfield Laboratories, Inc.
    Inventors: Robert McGinnis, Gabriel Chavez, Marc Doubleday, Richard DeWoskin, Anthony Avella
  • Patent number: 7411044
    Abstract: A substantially tetramer free hemoglobin solution and a method for producing a substantially tetramer free hemoglobin solution. The method includes polymerizing a solution of hemoglobin, treating the polymerized hemoglobin solution to partially degrade the polymer to tetramer and removing tetramer from the hemoglobin solution.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: August 12, 2008
    Assignee: Northfield Laboratories, Inc.
    Inventors: Anthony Avella, Richard DeWoskin, Marc Doubleday
  • Patent number: 7291592
    Abstract: Methods for treating a mammal suffering from massive blood loss comprising administering to the mammal a polymerized hemoglobin solution.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: November 6, 2007
    Assignee: Northfield Laboratories, Inc.
    Inventors: Steven Gould, Richard DeWoskin, Marc Doubleday, George Hides
  • Publication number: 20070173435
    Abstract: A hemoglobin solution packaged in a flexible oxygen-impermeable container system. The container system includes a multi-layer film having at least a product contact layer, an oxygen and moisture barrier layer and an exterior layer. The flexible container system further includes an interface port for filling the flexible container with the hemoglobin solution and delivering the hemoglobin solution. The hemoglobin solution comprises a substantially stroma and tetramer free, cross linked, pyridoxylated hemoglobin solution including preservatives such as ascorbic acid, glycine and dextrose.
    Type: Application
    Filed: February 23, 2007
    Publication date: July 26, 2007
    Applicant: Northfield Laboratories, Inc.
    Inventors: Robert McGinnis, Gabriel Chavez, Marc Doubleday, Richard DeWoskin, Anthony Avella
  • Patent number: 7202341
    Abstract: A hemoglobin solution packaged in a flexible oxygen-impermeable container system. The container system includes a multi-layer film having at least a product contact layer, an oxygen and moisture barrier layer and an exterior layer. The flexible container system further includes an interface port for filling the flexible container with the hemoglobin solution and delivering the hemoglobin solution. The hemoglobin solution comprises a substantially stroma and tetramer free, cross linked, pyridoxylated hemoglobin solution including preservatives such as ascorbic acid, glycine and dextrose.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: April 10, 2007
    Assignee: Northfield Laboratories, Inc.
    Inventors: Robert McGinnis, Gabriel Chavez, Marc Doubleday, Richard DeWoskin, Anthony Avella
  • Publication number: 20060287222
    Abstract: A substantially tetramer free hemoglobin solution and a method for producing a substantially tetramer free hemoglobin solution. The method includes polymerizing a solution of hemoglobin, treating the polymerized hemoglobin solution to partially degrade the polymer to tetramer and removing tetramer from the hemoglobin solution.
    Type: Application
    Filed: August 24, 2006
    Publication date: December 21, 2006
    Applicant: Northfield Laboratories, Inc.
    Inventors: Anthony Avella, Richard DeWoskin, Marc Doubleday
  • Patent number: 7135553
    Abstract: A substantially tetramer free hemoglobin solution and a method for producing a substantially tetramer free hemoglobin solution. The method includes polymerizing a solution of hemoglobin, treating the polymerized hemoglobin solution to partially degrade the polymer to tetramer and removing tetramer from the hemoglobin solution.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: November 14, 2006
    Assignee: Northfield Laboratories, Inc.
    Inventors: Anthony Avella, Richard DeWoskin, Marc Doubleday
  • Publication number: 20060014671
    Abstract: A hemoglobin solution packaged in a flexible oxygen-impermeable container system. The container system includes a multi-layer film having at least a product contact layer, an oxygen and moisture barrier layer and an exterior layer. The flexible container system further includes an interface port for filling the flexible container with the hemoglobin solution and delivering the hemoglobin solution. The hemoglobin solution comprises a substantially stroma and tetramer free, cross linked, pyridoxylated hemoglobin solution including preservatives such as ascorbic acid, glycine and dextrose.
    Type: Application
    Filed: September 21, 2005
    Publication date: January 19, 2006
    Applicant: Northfield Laboratories, Inc.
    Inventors: Robert McGinnis, Gabriel Chavez, Marc Doubleday, Richard DeWoskin, Anthony Avella
  • Publication number: 20040067876
    Abstract: Methods for treating a mammal suffering from massive blood loss comprising administering to the mammal a polymerized hemoglobin solution.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 8, 2004
    Applicant: Northfield Laboratories, Inc.
    Inventors: Steven A. Gould, Richard E. DeWoskin, Marc D. Doubleday, George A. Hides
  • Publication number: 20030191050
    Abstract: A process is disclosed for the preparation of an essentially tetramer-free, substantially stroma-free, polymerized, pyridoxylated hemoglobin. Also disclosed is an essentially tetramer-free, substantially stroma-free, polymerized, pyridoxylated hemoglobin product capable of being infused into human patients in an amount of up to about 5 liters.
    Type: Application
    Filed: October 17, 2002
    Publication date: October 9, 2003
    Applicant: Northfield Laboratories, Inc.
    Inventors: Richard E. DeWoskin, Marc D. Doubleday
  • Publication number: 20030130487
    Abstract: An acellular red blood cell substitute which comprises an essentially tetramer-free, substantially stroma-free, cross-linked, polymerized, pyridoxylated hemoglobin and a nontoxic, pharmaceutically acceptable carrier, its use and a process for preparing said acellular red blood cell substitute.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 10, 2003
    Applicant: Northfield Laboratories, Inc.
    Inventors: Lakshman R. Sehgal, Richard E. DeWoskin, Gerald S. Moss, Steven A. Gould, Arthur L. Rosen, Hansa Sehgal
  • Patent number: 6552173
    Abstract: An acellular red blood cell substitute which comprises an essentially tetramer-free, substantially stroma-free, cross-linked, polymerized, pyridoxylated hemoglobin and a nontoxic, pharmaceutically acceptable carrier, its use and a process for preparing said acellular red blood cell substitute.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: April 22, 2003
    Assignee: Northfield Laboratories, Inc.
    Inventors: Lakshman R. Sehgal, Richard E. De Woskin, Gerald S. Moss, Steven A. Gould, Arthur L. Rosen, Hansa Sehgal
  • Patent number: 6498141
    Abstract: A process is disclosed for the preparation of an essentially tetramer-free, substantially stroma-free, polymerized, pyridoxylated hemoglobin. Also disclosed is an essentially tetramer-free, substantially stroma-free, polymerized, pyridoxylated hemoglobin product capable of being infused into human patients in an amount of up to about 5 liters.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: December 24, 2002
    Assignee: Northfield Laboratories, Inc.
    Inventors: Richard E. DeWoskin, Marc D. Doubleday
  • Publication number: 20020062007
    Abstract: An a cellular red blood cell substitute which comprises an essentially tetramer-free, substantially stroma-free, cross-linked, polymerized, pyridoxylated hemoglobin and a nontoxic, pharmaceutically acceptable carrier, its use and a process for preparing said a cellular red blood cell substitute.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 23, 2002
    Applicant: Northfield Laboratories, Inc.
    Inventors: Lakshman R. Sehgal, Richard E. DeWoskin, Gerald S. Moss, Steven A. Gould, Arthur L. Rosen, Hansa Sehgal
  • Patent number: 6323320
    Abstract: An acellular red blood cell substitute which comprises an essentially tetramer-free, substantially stroma-free, cross-linked, polymerized, pyridoxylated hemoglobin and a nontoxic, pharmaceutically acceptable carrier, its use and a process for preparing said acellular red blood cell substitute.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: November 27, 2001
    Assignee: Northfield Laboratories, Inc.
    Inventors: Lakshman R. Sehgal, Richard E. De Woskin, Gerald S. Moss, Steven A. Gould, Arthur L. Rosen, Hansa Sehgal
  • Patent number: 6133425
    Abstract: An acellular red blood cell substitute which comprises an essentially tetramer-free, substantially stroma-free, cross-linked, polymerized, pyridoxylated hemoglobin and a nontoxic, pharmaceutically acceptable carrier, its use and a process for preparing said acellular red blood cell substitute.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: October 17, 2000
    Assignee: Northfield Laboratories, Inc
    Inventors: Lakshman R. Sehgal, Richard E. De Woskin, Gerald S. Moss, Steven A. Gould, Arthur L. Rosen, Hansa Sehgal
  • Patent number: 5464814
    Abstract: A process is disclosed for the preparation of an essentially tetramer-free, essentially stroma-free, cross-linked, polymerized, pyridoxylated hemoglobin which comprises separating red blood cell stroma from blood by means of heat treating step to remove stromal contaminants and filtration or centrifugation or both, pyridoxylating, polymerizing, and removing essentially all of the remaining unmodified tetramer.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: November 7, 1995
    Assignee: Northfield Laboratories, Inc.
    Inventors: Lakshman R. Sehgal, Richard E. De Woskin, Gerald S. Moss, Steven A. Gould, Arthur L. Rosen, Hansa Sehgal
  • Patent number: 5438041
    Abstract: A process is provided wherein hemoglobin, a fragile material, is formulated into high hemoglobin content water-in-oil-in-water multiple emulsion while maintaining high yields and high oxygen exchange activity. A multiple emulsion of aqueous oxygen carrying material in oil in outer aqueous phase is suitable for provision of oxygen for oxygen transfer processes. A hemoglobin multiple emulsion in physiologically compatible oil in an outer aqueous saline solution is provided in sufficiently small droplet size to provide oxygen flow through blood vessels to desired body tissues or organs thereby providing a blood substitute.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: August 1, 1995
    Assignees: Illinois Institute of Technology, Northfield Laboratories, Inc.
    Inventors: Shuming Zheng, Richard L. Beissinger, Darsh T. Wasan, Lakshman R. Sehgal, Arthur L. Rosen
  • Patent number: 5217648
    Abstract: A process is provided wherein hemoglobin, a fragile material, is formulated into high hemoglobin content water-in-oil-in-water multiple emulsion while maintaining high yields and high oxygen exchange activity. A multiple emulsion of aqueous oxygen carrying material in oil in outer aqueous phase is suitable for provision of oxygen for oxygen transfer processes. A hemoglobin multiple emulsion in physiologically compatible oil in an outer aqueous saline solution is provided in sufficiently small droplet size to provide oxygen flow through blood vessels to desired body tissues or organs thereby providing a blood substitute.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: June 8, 1993
    Assignees: Illinois Institute of Technology, Northfield Laboratories, Inc.
    Inventors: Richard L. Beissinger, Darsh T. Wasan, Lakshman R. Sehgal, Arthur L. Rosen