Patents by Inventor David Douglas Swenson

David Douglas Swenson 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).

  • DNA recombination junction detection
    Patent number: 9605322
    Abstract: The present invention provides methods, compositions and kits for detecting the presence or absence of an integrated insertion polynucleotide.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: March 28, 2017
    Assignee: Cepheid
    Inventors: Jian Ping Zhang, Ernest Jay Friedlander, Robert Ruhfel, David Douglas Swenson, Alan Thomas Wortman
  • DNA RECOMBINATION JUNCTION DETECTION
    Publication number: 20140248624
    Abstract: The present invention provides methods, compositions and kits for detecting the presence or absence of an integrated insertion polynucleotide.
    Type: Application
    Filed: January 7, 2014
    Publication date: September 4, 2014
    Inventors: Jian Ping Zhang, Ernest Jay Friedlander, Robert Ruhfel, David Douglas Swenson, Alan Thomas Wortman
  • DNA recombination junction detection
    Patent number: 8652784
    Abstract: The present invention provides methods, compositions and kits for detecting the presence or absence of an integrated insertion polynucleotide.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: February 18, 2014
    Assignee: Cepheid
    Inventors: Jian Ping Zhang, Ernest Jay Friedlander, Robert Ruhfel, David Douglas Swenson, Alan Thomas Wortman
  • DNA RECOMBINATION JUNCTION DETECTION
    Publication number: 20130065774
    Abstract: The present invention provides methods, compositions and kits for detecting the presence or absence of an integrated insertion polynucleotide.
    Type: Application
    Filed: April 25, 2012
    Publication date: March 14, 2013
    Applicant: Cepheid
    Inventors: Jian Ping Zhang, Ernest Jay Friedlander, Robert Ruhfel, David Douglas Swenson, Alan Thomas Wortman
  • DNA recombination junction detection
    Patent number: 8187812
    Abstract: The present invention provides methods, compositions and kits for detecting the presence or absence of an integrated insertion polynucleotide.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: May 29, 2012
    Assignee: Cepheid
    Inventors: Jian Ping Zhang, Ernest Jay Friedlander, Robert Ruhfel, David Douglas Swenson, Alan Thomas Wortman
  • Multi-stage amplification reactions by control of sequence replication times
    Patent number: 8119352
    Abstract: The present invention provides methods and kits for conducting multiplex nucleic acid amplification reactions by controlling target sequence replication times. In one aspect, such control is exerted by selecting different lengths of target polynucleotides for amplification. In another aspect, control is exerted by providing sequence-specific polymerase inhibitors, such as specific blocking oligonucleotides. In accordance with the invention, multiple target polynucleotides can be sequentially amplified in an amplification reaction conducted in different stages, wherein amplification of sequences with longer replication times is permitted in one stage but precluded in other stages by modifying polymerase extension times in the course of the reaction.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: February 21, 2012
    Assignee: Cepheld
    Inventors: Lynn Kozma, David Douglas Swenson
  • DNA recombination junction detection
    Publication number: 20090047669
    Abstract: The present invention provides methods, compositions and kits for detecting the presence or absence of an integrated insertion polynucleotide.
    Type: Application
    Filed: May 11, 2007
    Publication date: February 19, 2009
    Applicant: Cepheid
    Inventors: Jian Ping Zhang, Ernest Jay Friedlander, Robert Ruhfel, David Douglas Swenson, Alan Thomas Wortman