Patents by Inventor Ushma Mehta

Ushma Mehta 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).

  • Method of determining virus removal from a sample containing a target protein using activated carbon
    Patent number: 9910041
    Abstract: The present invention provides methods for determining whether activated carbon can be used for removing viruses or a certain virus from a sample containing a target protein.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 6, 2018
    Assignee: EMD Millipore Corporation
    Inventors: Matthew T. Stone, Ushma Mehta, Damon Asher, Patricia Greenhalgh
  • Methods of producing high titer, high purity virus stocks and methods of use thereof
    Patent number: 9644187
    Abstract: The purity and titer of virus stocks used for virus clearance studies have a significant influence on study outcome, and impact how well the scale-down model represents the production-scale process. Impurities in virus stocks are particularly important in the testing of small virus retentive filters because these impurities may cause a filter to foul prematurely, leading to underestimation of the true throughput capability of the filter and consequent inappropriate sizing of the production scale unit. In addition, impurities can also affect the levels of virus clearance observed by altering the fouling mechanisms and subsequent fluid passage through the virus filter. Described herein are methods for making, producing and using high purity virus stocks having high titer.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 9, 2017
    Assignee: EMD Millipore Corporation
    Inventors: Damon R. Asher, Amanda B. Katz, Navid Z. Khan, Ushma Mehta
  • A METHOD OF DETERMINING VIRUS REMOVAL FROM A SAMPLE CONTAINING A TARGET PROTEIN USING ACTIVATED CARBON
    Publication number: 20160123981
    Abstract: The present invention provides methods for determining whether activated carbon can be used for removing viruses or a certain virus from a sample containing a target protein.
    Type: Application
    Filed: April 4, 2014
    Publication date: May 5, 2016
    Applicant: EMD MILLIPORE CORPORATION
    Inventors: Matthew T. STONE, Ushma MEHTA, Damon ASHER, Patricia GREENHALGH
  • METHODS OF PRODUCING HIGH TITER, HIGH PURITY VIRUS STOCKS AND METHODS OF USE THEREOF
    Publication number: 20120088228
    Abstract: The purity and titer of virus stocks used for virus clearance studies have a significant influence on study outcome, and impact how well the scale-down model represents the production-scale process. Impurities in virus stocks are particularly important in the testing of small virus retentive filters because these impurities may cause a filter to foul prematurely, leading to underestimation of the true throughput capability of the filter and consequent inappropriate sizing of the production scale unit. In addition, impurities can also affect the levels of virus clearance observed by altering the fouling mechanisms and subsequent fluid passage through the virus filter. Described herein are methods for making, producing and using high purity virus stocks having high titer.
    Type: Application
    Filed: April 8, 2011
    Publication date: April 12, 2012
    Applicant: Millipore Corporation
    Inventors: Damon R. Asher, Amanda B. Katz, Navid Z. Khan, Ushma Mehta