Patents by Inventor Stephen Dueker

Stephen Dueker 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).

  • ASSAY FOR VITAMIN B12 ABSORPTION AND METHOD OF MAKING LABELED VITAMIN B12
    Publication number: 20120264174
    Abstract: The invention provides methods for labeling vitamin B12 with 14C, 13C, tritium, and deuterium. When radioisotopes are used, the invention provides for methods of labeling B12 with high specific activity. The invention also provides labeled vitamin B12 compositions made in accordance with the invention.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 18, 2012
    Applicant: The Regents of the University of California
    Inventors: Peter J. Anderson, Stephen Dueker, Joshua Miller, Ralph Green, John Roth, Colleen Carkeet, Bruce A. Buchholz
  • Assay for vitamin B12 absorption and method of making labeled vitamin B12
    Patent number: 8202507
    Abstract: The invention provides methods for labeling vitamin B12 with 14C, 13C, tritium, and deuterium. When radioisotopes are used, the invention provides for methods of labeling B12 with high specific activity. The invention also provides labeled vitamin B12 compositions made in accordance with the invention.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: June 19, 2012
    Assignee: The Regents of the University of California
    Inventors: Peter J. Anderson, Stephen Dueker, Joshua Miller, Ralph Green, John Roth, Colleen Carkeet, Bruce A. Buchholz
  • Assay for vitamin B12 absorption and method of making labeled vitamin B12
    Publication number: 20060110322
    Abstract: The invention provides methods for labeling vitamin B12 with 14C, 13C, tritium, and deuterium. When radioisotopes are used, the invention provides for methods of labeling B12 with high specific activity. The invention also provides labeled vitamin B12 compositions made in accordance with the invention.
    Type: Application
    Filed: September 23, 2005
    Publication date: May 25, 2006
    Applicant: REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Peter Anderson, Stephen Dueker, Joshua Miller, Ralph Green, John Roth, Colleen Carkeet, Bruce Buchholz