Patents by Inventor Van Tran Van

Van Tran Van 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 for extracting DNA from organisms
    Patent number: 6989249
    Abstract: A method for the indirect extraction of DNA greater than 300 kb in size from non-cultivatable organisms contained in an environmental sample is disclosed. The method comprises isolating the organisms from the sample and embedding the isolated organisms in a block of agarose where the organisms are subsequently lysed and the DNA subjected to a first alternating field electrophoresis to extract DNA fragments which are large in size and separate them from the cell debris. The first electrophoretic migration is followed by an enzymatic restriction step and additional electrophoretic migrations. The invention also encompasses DNA obtained by the method.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: January 24, 2006
    Assignee: Libragen
    Inventors: Renaud Nalin, Patrick Robe, Van Tran Van
  • Method for indirectly extracting the DNA of non-cultivatable organisms and DNA obtainable by said method
    Publication number: 20030049675
    Abstract: A method for the indirect extraction of DNA greater than 300 kb in size from non-cultivatable organisms contained in an environmental sample is disclosed. The method comprises isolating the organisms from the sample and embedding the isolated organisms in a block of agarose where the organisms are subsequently lysed and the DNA subjected to a first alternating field electrophoresis to extract DNA fragments which are large in size and separate them from the cell debris. The first electrophoretic migration is followed by an enzymatic restriction step and additional electrophoretic migrations. The invention also encompasses DNA obtained by the method.
    Type: Application
    Filed: October 28, 2002
    Publication date: March 13, 2003
    Inventors: Renaud Nalin, Patrick Robe, Van Tran Van