Patents by Inventor James Alan Higgins

James Alan Higgins 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).

  • Continuous process for the production of combinatorial libraries of materials
    Patent number: 7514263
    Abstract: A system is provided wherein a plug flow reactor is used to make combinatorial libraries of materials. Examples of plug flow reactors include stirred tube reactors, extruders, and static mixers.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: April 7, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: James Michael Nelson, Robert Stephen Davidson, Jeffrey Jacob Cernohous, Michael John Annen, James Robert McNerney, Robert Wade Ferguson, Anthony Robert Maistrovich, James Alan Higgins
  • Continuous process for the production of combinatorial libraries of materials
    Publication number: 20030035756
    Abstract: A system is provided wherein a plug flow reactor is used to make combinatorial libraries of materials. Examples of plug flow reactors include stirred tube reactors, extruders, and static mixers.
    Type: Application
    Filed: April 2, 2001
    Publication date: February 20, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: James Michael Nelson, Robert Stephen Davidson, Jeffrey Jacob Cernohous, Michael John Annen, James Robert McNerney, Robert Wade Ferguson, Anthony Robert Maistrovich, James Alan Higgins
  • Continuous process for the production of controlled architecture materials
    Patent number: 6448353
    Abstract: The present invention discloses a continuous process for the production of anionically-polymerized organic materials having controlled architectures. The organic materials may be made from one or more temperature-sensitive anionically-polymerizable monomers. The materials are made under plug-flow and temperature-controlled conditions.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 10, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: James Michael Nelson, Jeffrey J. Cernohous, Michael J. Annen, James Robert McNerney, Robert Wade Ferguson, Barry Eugene Heldman, James Alan Higgins
  • Shrouded reaction vessel process
    Patent number: 5882604
    Abstract: A reactor system that can safely use general purpose electrical devices and unregulated surface temperature heat sources even though a flammable and/or combustible substance is being processed in the reactor or is within the processing area. The reactor system includes a reaction vessel and at least one process control device proximate the reaction vessel which is a possible ignition source for flammable and combustible materials. A shroud encloses the ignition source within a chamber and the chamber is provided with an inactive environment which is effective for preventing the ignition source from igniting any flammable or combustible substance that may enter the chamber.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: March 16, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Anthony Robert Maistrovich, James Alan Higgins, Wade Douglas Kretman, Dennis Alan Davidson, Katrina M. Jackson, William Ross Berggren
  • Shrouded reaction vessel
    Patent number: 5814278
    Abstract: A reactor system that can safely use general purpose electrical devices and unregulated surface temperature heat sources even though a flammable and/or combustible substance is being processed in the reactor or is within the processing area. The reactor system includes a reaction vessel and at least one process control device proximate the reaction vessel which is a possible ignition source for flammable and combustible materials. A shroud encloses the ignition source within a chamber and the chamber is provided with an inactive environment which is effective for preventing the ignition source from igniting any flammable or combustible substance that may enter the chamber.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: September 29, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Anthony Robert Maistrovich, James Alan Higgins, Wade Douglas Kretman, Dennis Alan Davidson, Katrina M. Jackson, William Ross Berggren