Patents by Inventor Sheldon C. Engelhorn

Sheldon C. Engelhorn 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).

  • System for pH-neutral stable electrophoresis gel
    Patent number: 7967966
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: June 28, 2011
    Assignee: Life Technologies Corporation
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • SYSTEM FOR PH-NEUTRAL STABLE ELECTROPHORESIS GEL
    Publication number: 20110127166
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Application
    Filed: November 16, 2010
    Publication date: June 2, 2011
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 7892409
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: February 22, 2011
    Assignee: Life Technologies Corporation
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 7452453
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: November 18, 2008
    Assignee: Invitrogen Corporation
    Inventors: Timothy V Updyke, Sheldon C Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 7422670
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: September 9, 2008
    Inventors: Timothy V Updyke, Sheldon C Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 6783651
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 31, 2004
    Assignee: Invitrogen Corporation
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Publication number: 20030127330
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Application
    Filed: February 21, 2003
    Publication date: July 10, 2003
    Applicant: Invitrogen Corporation
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Publication number: 20030121784
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Application
    Filed: February 21, 2003
    Publication date: July 3, 2003
    Applicant: Invitrogen Corporation
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 6162338
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: December 19, 2000
    Assignee: Novex
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for PH-neutral stable electrophoresis gel
    Patent number: 6143154
    Abstract: A gel and buffer system for gel electrophoresis wherein the gel buffer has an approximately neutral pH.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: November 7, 2000
    Assignee: Novex
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 6096182
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: August 1, 2000
    Assignee: Novex
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 6059948
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: May 9, 2000
    Assignee: Novex
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • System for pH-neutral stable electrophoresis gel
    Patent number: 5922185
    Abstract: A gel and buffer system for gel electrophoresis wherein separation occurs at neutral pH.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 13, 1999
    Assignee: Novel Experimental Technology, Inc.
    Inventors: Timothy V. Updyke, Sheldon C. Engelhorn
  • Use of hydroxylapatite for the analysis and preparation of purified monoclonal antibodies
    Patent number: 4745183
    Abstract: A novel method is disclosed for the purification of monoclonal antibodies from antibodies of the same isotype but different light chain composition which are frequently present in the fluids in which such antibodies are generated. According to the method, the mixture is placed in a hydroxylapatite chromatography column and eluted with a buffer solution in a concentration gradient elution. With the appropriate optimization of system parameters, a separation of antibodies effective for both analytical and preparative purposes is obtained.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: May 17, 1988
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Sheldon C. Engelhorn, Hector Juarez-Salinas, Gary S. Ott