Patents by Inventor David Robert Latulippe

David Robert Latulippe 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).

  • Separation of different isoforms of plasmid DNA using ultrafiltration
    Patent number: 7989615
    Abstract: The invention is a method for isolating a desired plasmid DNA isoform, typically a supercoiled isoform, which includes the steps of obtaining a quantity of bioreactor produced plasmid DNA in liquid form for purification, and passing the plasmid DNA through an ultrafiltration membrane at a selected filtrate flux.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 2, 2011
    Assignee: The Penn State Research Foundation
    Inventors: Andrew Lawrence Zydney, David Robert Latulippe
  • Separation of different isoforms of plasmid DNA using ultrafiltration
    Publication number: 20090018322
    Abstract: A method of using pressure-driven ultrafiltration efficiently to separate isoforms of plasmid DNA such as is created in bioreactors known in the art.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Inventors: Andrew Lawrence Zydney, David Robert Latulippe