Patents by Inventor Steven R. Strand

Steven R. Strand 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).

  • Process to prepare levulinic acid
    Patent number: 10618864
    Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 14, 2020
    Assignee: GFBiochemicals IP Assets B.V.
    Inventors: Brian D. Mullen, Cora M. Leibig, Louis A. Kapicak, Donald L. Bunning, Steven R. Strand, Daniel Joseph Brunelle, Marc David Rodwogin, Robert Page Shirtum, Andrew J. Louwagie, Dorie Janine Yontz, Matthew John Tjosaas
  • PROCESS TO PREPARE LEVULINIC ACID
    Publication number: 20190016658
    Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.
    Type: Application
    Filed: July 31, 2018
    Publication date: January 17, 2019
    Inventors: Brian D. Mullen, Cora M. Leibig, Louis A. Kapicak, Donald L. Bunning, Steven R. Strand, Daniel Joseph Brunelle, Marc David Rodwogin, Robert Page Shirtum, Andrew J. Louwagie, Dorie Janine Yontz, Matthew John Tjosaas
  • Mixing system comprising an extensional flow mixer
    Patent number: 8876365
    Abstract: The invention provides a mixing system comprising the following: A) at least one extensional flow mixer comprising: a generally open and hollow body having a contoured outer surface and having: a single entrance port and a single exit port; a design for compressing a bulk stream, and a design for broadening the bulk stream and the at least one injected additive stream; B) a flow conductor; and C) a primary additive stream injector, as described herein; and wherein the extensional flow mixer is followed by D) a first helical static mixing element that is at least one half “flow conductor diameter (D1)” downstream of the exit port of the extensional flow mixer; and wherein the mixing system comprises at least four helical static mixing elements, placed such that the leading edge of the first helical static mixing element is located perpendicular to the main axis (major axis) of the exit port of the extensional flow mixer.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: November 4, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Maria Pollard, Steven R. Strand, David A. Eversdyk, Matthias Schaefer
  • PROCESS TO PREPARE LEVULINIC ACID
    Publication number: 20140316161
    Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.
    Type: Application
    Filed: November 21, 2012
    Publication date: October 23, 2014
    Inventors: Brian D. Mullen, Cora M. Leibig, Louis A. Kapicak, Donald L. Bunning, Steven R. Strand, Daniel Joseph Brunelle, Marc David Rodwogin, Robert Page Shirtum, Andrew J. Louwagie, Dorie Janine Yontz, Matthew John Tjosaas
  • MIXING SYSTEM COMPRISING AN EXTENSIONAL FLOW MIXER
    Publication number: 20120287744
    Abstract: The invention provides a mixing system comprising the following: A) at least one extensional flow mixer comprising: a generally open and hollow body having a contoured outer surface and having: a single entrance port and a single exit port; a means for compressing a bulk stream flowing through the generally open and hollow body in a direction of flow, and at least one injected additive stream introduced at the single entrance port in the direction of flow; and a means for broadening the bulk stream and the at least one injected additive stream, such that an interfacial area between the bulk stream and the at least one injected additive stream is increased as the bulk stream and the at least one injected additive stream flow through the generally open and hollow body in the direction of flow to promote mixing of the bulk stream and the at least one injected additive stream; B) a flow conductor having an axis and having a generally open and hollow flow mixer body cured therein; and C) a primary additive stream
    Type: Application
    Filed: January 20, 2011
    Publication date: November 15, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Maria Pollard, Steven R. Strand, David A. Eversdyk, Matthias Schaefer
  • MIXING SYSTEM COMPRISING AN EXTENSIONAL FLOW MIXER
    Publication number: 20110182134
    Abstract: A mixing system is disclosed comprising at least one extensional flow mixer comprising: a generally open and hollow body having a contoured outer surface and having: a single entrance port and a single exit port; a means for compressing a bulk stream flowing through the generally open and hollow body in a direction of flow and at least one injected additive stream introduced at the single entrance port in the direction of flow; and a means for broadening the bulk stream and the at least one injected additive stream such that an interfacial area between the bulk stream and the at least one injected additive stream is increased as the bulk stream and the at least one injected additive stream flow through the generally open and hollow body in the direction of flow to promote mixing of the bulk stream and the at least one injected additive stream, a flow conductor having an axis and having a generally open and hollow flow mixer body secured therein; and a primary additive stream injector positioned at the entra
    Type: Application
    Filed: January 22, 2010
    Publication date: July 28, 2011
    Applicant: Dow Global Technologies Inc.
    Inventors: Maria Pollard, Steven R. Strand, David A. Eversdyk, Matthias Schaefer