Patents by Inventor David Yavorksy

David Yavorksy 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).

  • Patent number: 11660555
    Abstract: A depth filtration device for the clarification of biological fluids including a composite depth filter media having a nonwoven first layer integral with a second layer containing a polyaeryionitrile (PAN) fibers, a filter aid, and a wet-strength resin. The depth filter media exhibits increased creased binding capacity for soluble impurities such as DNA and host eel! proteins from biological/cell culture feed-streams during secondary clarification and low-level impurity clearance of harvested cell culture fluids, such as those used for the manufacture of monoclonal antibodies. The depth filter media additionally exhibits significantly lower flushing requirements, resulting in lower levels of organic, inorganic and bioburden extractables released, high dirt holding capacities and good chemical and/or radiation resistance.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: May 30, 2023
    Assignee: EMD Millipore Corporation
    Inventors: Maybelle Woo, David Yavorksy, John Amara, Nripen Singh, Kwok-Shun Cheng
  • Patent number: 11590439
    Abstract: A depth filtration device for the clarification of biological fluids including a composite depth filter media having a nonwoven first layer integral with a second layer containing a polyaeryionitrile (PAN) fibers, a filter aid, and a wet-strength resin. The depth filter media exhibits increased creased binding capacity for soluble impurities such as DNA and host eel! proteins from biological/cell culture feed-streams during secondary clarification and low-level impurity clearance of harvested cell culture fluids, such as those used for the manufacture of monoclonal antibodies. The depth filter media additionally exhibits significantly lower flushing requirements, resulting in lower levels of organic, inorganic and bioburden extractables released, high dirt holding capacities and good chemical and/or radiation resistance.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: February 28, 2023
    Assignee: EMD Millipore Corporation
    Inventors: Maybelle Woo, David Yavorksy, John Amara, Nripen Singh, Kwok-Shun Cheng
  • Publication number: 20160114272
    Abstract: A depth filtration device for the clarification of biological fluids including a composite depth filter media having a nonwoven first layer integral with a second layer containing a polyaeryionitrile (PAN) fibers, a filter aid, and a wet-strength resin. The depth filter media exhibits increased creased binding capacity for soluble impurities such as DNA and host cells proteins from biological/cell culture feed-streams during secondary clarification and low-level impurity clearance of harvested cell culture fluids, such as those used for the manufacture of monoclonal antibodies. The depth filter media additionally exhibits significantly lower flushing requirements, resulting in lower levels of organic, inorganic and bioburden extractables released, high dirt holding capacities and good chemical and/or radiation resistance.
    Type: Application
    Filed: September 2, 2014
    Publication date: April 28, 2016
    Inventors: Maybelle Woo, David Yavorksy, John Amara, Nripen Singh