Patents by Inventor Chris Cheeseman

Chris Cheeseman 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).

  • Drill pipe handling apparatus having improved pipe gripping mechanism
    Patent number: 9551193
    Abstract: In a drill pipe handling apparatus, a pipe gripping mechanism comprises three pipe-gripping jaws arranged to grip a pipe at locations adjacent the apices of a triangle containing the axis of the pipe. A first pipe gripping jaw is connectible to a first pivoted arm at any selected one of a set of plural distances from the pivot axis of the first arm and connected to the first arm at one of those plural distances, and a second jaw is connectible to the second arm at any selected one of the same set of plural distances from the pivot axis of the second arm and connected to the second arm at the same one of those plural distances at which the first jaw is connected to the first arm. Because the same first and second jaws are connectible to the arms at plural distances from the pivot axes, the same jaws can accommodate a wide range of pipe diameters.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: January 24, 2017
    Assignee: Schramm, Inc.
    Inventors: Chris Cheeseman, Paul T. DiZillo, David Y. Sim
  • DRILL PIPE HANDLING APPARATUS HAVING IMPROVED PIPE GRIPPING MECHANISM
    Publication number: 20150275595
    Abstract: In a drill pipe handling apparatus, a pipe gripping mechanism comprises three pipe-gripping jaws arranged to grip a pipe at locations adjacent the apices of a triangle containing the axis of the pipe. A first pipe gripping jaw is connectible to a first pivoted arm at any selected one of plural distances from the pivot axis of the first arm and connected to the first arm at one of those plural distances, and a second jaw is connectible to the second arm at any selected one of said plural distances from the pivot axis of the second arm and connected to said second arm at said one of said plural distances. Because the same first and second jaws are connectible to the arms at plural distances from the pivot axes, the same jaws can accommodate a wide range of pipe diameters.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 1, 2015
    Applicant: Schramm, Inc.
    Inventors: Chris Cheeseman, Paul T. DiZillo, David Y. Sim
  • Fluorinated fructose derivatives for PET imaging
    Patent number: 8501154
    Abstract: The present invention is directed to fructose-based radiopharmaceuticals, pharmaceutical compositions comprising same, precursors and methods for preparing same, and methods of using same for diagnostic imaging of cancer cells and non-imaging tracer studies.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 6, 2013
    Assignee: The Governors of the University of Alberta
    Inventors: Chris Cheeseman, Frederick West, Tina Grant, Brendan Trayner, John Mercer, Andrei Manolescu
  • FLUORINATED FRUCTOSE DERIVATIVES FOR PET IMAGING
    Publication number: 20130078184
    Abstract: The present invention is directed to fructose-based radiopharmaceuticals, pharmaceutical compositions comprising same, precursors and methods for preparing same, and methods of using same for diagnostic imaging of cancer cells and non-imaging tracer studies.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 28, 2013
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Chris CHEESEMAN, Frederick WEST, Tina GRANT, Brendan TRAYNER, John MERCER, Andrei MANOLESCU
  • Fluorinated fructose derivatives for PET imaging
    Patent number: 8293208
    Abstract: The present invention is directed to fructose-based radiopharmaceuticals, pharmaceutical compositions comprising same, precursors and methods for preparing same, and methods of using same for diagnostic imaging of cancer cells and non-imaging tracer studies.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: October 23, 2012
    Assignee: The Governors of the University of Alberta
    Inventors: Chris Cheeseman, Frederick West, Tina Grant, Brendan Trayner, John Mercer, Andrei Manolescu
  • FLUORINATED FRUCTOSE DERIVATIVES FOR PET IMAGING
    Publication number: 20100290988
    Abstract: The present invention is directed to fructose-based radiopharmaceuticals, pharmaceutical compositions comprising same, precursors and methods for preparing same, and methods of using same for diagnostic imaging of cancer cells and non-imaging tracer studies.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 18, 2010
    Inventors: Chris CHEESEMAN, Frederick WEST, Tina GRANT, Brendan TRAYNER, John MERCER, Andrei MANOLESCU