Patents by Inventor Andrew J. Louwagie

Andrew J. Louwagie 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
  • Methods for the manufacture of acetals and ketals, and the acetals and ketals produced thereby
    Patent number: 9593093
    Abstract: A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 14, 2017
    Assignee: GFBIOCHEMICALS LIMITED
    Inventors: Brian D. Mullen, Marc D. Scholten, Andrew J. Louwagie, Steven A. Donen, Feng Jing, Vivek Badarinarayana
  • METHODS FOR THE MANUFACTURE OF ACETALS AND KETALS, AND THE ACETALS AND KETALS PRODUCED THEREBY
    Publication number: 20150080585
    Abstract: A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: BRIAN D. MULLEN, MARC D. SCHOLTEN, ANDREW J. LOUWAGIE, STEVEN A. DONEN, FENG JING, VIVEK BADARINARAYANA
  • 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
  • METHODS FOR THE MANUFACTURE OF ACETALS AND KETALS, AND THE ACETALS AND KETALS PRODUCED THEREBY
    Publication number: 20120035376
    Abstract: A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 9, 2012
    Applicant: SEGETIS, INC.
    Inventors: Brian D. Mullen, Marc D. Scholten, Andrew J. Louwagie, Steven A. Donen, Feng Jing, Vivek Badarinarayana