Patents by Inventor Michael D. Dirksen

Michael D. Dirksen 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).

  • Biological sample processing methods and compositions that include surfactants
    Patent number: 6617136
    Abstract: Compositions containing a near-IR dye and greater than about 0.5 wt-% of a surfactant selected from the group of a nonionic surfactant, a zwitterionic surfactant, and a mixture thereof, and methods for processing sample materials.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: September 9, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, Raj Rajagopal, William Bedingham, Michael D. Dirksen, Christopher J. Larson, Vinod P. Menon
  • Biological sample processing methods and compositions that include surfactants
    Publication number: 20030017551
    Abstract: Compositions containing a near-IR dye and greater than about 0.5 wt-% of a surfactant selected from the group of a nonionic surfactant, a zwitterionic surfactant, and a mixture thereof, and methods for processing sample materials.
    Type: Application
    Filed: April 24, 2001
    Publication date: January 23, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, Raj Rajagopal, William Bedingham, Michael D. Dirksen, Christopher J. Larson, Vinod P. Menon
  • Biological sample processing methods and compositions that include surfactants
    Publication number: 20030017567
    Abstract: Compositions containing an enzyme, a dye, and an effective amount of a surfactant selected from the group of a nonionic surfactant, a zwitterionic surfactant, and a mixture thereof and methods for processing sample materials.
    Type: Application
    Filed: April 24, 2001
    Publication date: January 23, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, Raj Rajagopal, William Bedingham, Michael D. Dirksen, Christopher J. Larson, Vinod P. Menon