Patents by Inventor Eric Haupfear

Eric Haupfear 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).

  • Control Of N-(Phosphonomethyl) Iminodiacetic Acid Conversion In Manufacture Of Glyphosate
    Publication number: 20240094120
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 21, 2024
    Inventors: Leonard AYNARDI, David Z. BECHER, Robert E. BYRD, Eduardo Aurelio CASANOVA, James P. COLEMAN, David R. EATON, Walter K. GAVLICK, Eric A. HAUPFEAR, Oliver LERCH, Carl MUMFORD, Alfredo OBA, Stephen D. PROSCH, Peter E. ROGERS, Bart ROOSE, Mark D. SCAIA, Lowell R. SMITH, Donald D. SOLETA, John WAGENKNECHT
  • Control of N-(phosphonomethyl)iminodiacetic acid conversion manufacture of glyphosate
    Patent number: 11802835
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: October 31, 2023
    Assignee: Monsanto Technology LLC
    Inventors: Donald D. Soleta, Peter E. Rogers, Eduardo A. Casanova, Robert E. Byrd, Eric A. Haupfear
  • CONTROL OF N-(PHOSPHONOMETHYL)IMINODIACETIC ACID CONVERSION MANUFACTURE OF GLYPHOSATE
    Publication number: 20210381962
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 9, 2021
    Applicant: Monsanto Technology LLC
    Inventors: Donald D. Soleta, David R. Eaton, Peter E. Rogers, Eduardo A. Casanova, John Wagenknecht, Leonard Aynardi, David Z. Becher, Robert E. Byrd, James P. Coleman, Walter K. Gavlick, Eric A. Haupfear, Oliver Lerch, Carl Mumford, Alfredo Oba, Stephen D. Prosch, Bart Roose, Mark D. Scaia, Lowell R. Smith
  • Control of n-(phosphonomethyl)iminodiacetic acid conversion in manufacture of glyphosate
    Patent number: 11067502
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content. One such method involves obtaining a series of Fourier transform infrared (“FTIR”) analyses of the PMIDA content of the aqueous reaction medium or a sample thereof during the course of the reaction. From a plurality of FTIR analyses, a projection is made of the batch reaction time or continuous oxidation residence time within the oxidation reaction zone at which a target conversion or end point may be anticipated to be attained or is attained.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: July 20, 2021
    Assignee: Monsanto Technology LLC
    Inventors: David R. Eaton, Walter K. Gavlick, Eric A. Haupfear
  • Mitigating Necrosis in Transgenic Glyphosate-Tolerant Cotton Plants Treated with Herbicidal Glyphosate Formulations
    Publication number: 20170339950
    Abstract: This invention relates generally to improved methods and herbicidal glyphosate compositions for use in controlling the growth of weeds and unwanted vegetation, and particularly for use in controlling weeds in a crop of transgenic glyphosate-tolerant cotton plants by over-the-top, foliar application of a herbicidal glyphosate formulation.
    Type: Application
    Filed: April 6, 2017
    Publication date: November 30, 2017
    Applicant: Monsanto Technology LLC
    Inventors: Stephen D. Prosch, Michael E. Seitz, David R. Eaton, David Z. Becher, Eric A. Haupfear, Eduardo Casanova, Peter E. Rogers
  • CONTROL OF N-(PHOSPHONOMETHYL)IMINODIACETIC ACID CONVERSION IN MANUFACTURE OF GLYPHOSATE
    Publication number: 20160370330
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Application
    Filed: June 30, 2016
    Publication date: December 22, 2016
    Applicant: Monsanto Technology LLC
    Inventors: David R. Eaton, Walter K. Gavlick, Eric A. Haupfear
  • Control of N-(phosphonomethyl)iminodiacetic acid conversion in manufacture of glyphosate
    Patent number: 9409935
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: August 9, 2016
    Assignee: Monsanto Technology LLC
    Inventor: Eric A. Haupfear
  • Mitigating necrosis in transgenic glyphosate-tolerant cotton plants treated with herbicidal glyphosate formulations
    Patent number: 8129564
    Abstract: This invention relates generally to improved methods and herbicidal glyphosate compositions for use in controlling the growth of weeds and unwanted vegetation, and particularly for use in controlling weeds in a crop of transgenic glyphosate-tolerant cotton plants by over-the-top, foliar application of a herbicidal glyphosate formulation.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: March 6, 2012
    Assignee: Monsanto Technology LLC
    Inventors: Stephen D. Prosch, Michael E. Seitz, Eric A. Haupfear, Eduardo Casanova, Peter E. Rogers, David R. Eaton, David Z. Becher
  • CONTROL OF N-(PHOSPHONOMETHYL)IMINODIACETIC ACID CONVERSION IN MANUFACTURE OF GLYPHOSATE
    Publication number: 20110097810
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Application
    Filed: September 17, 2010
    Publication date: April 28, 2011
    Applicant: MONSANTO TECHNOLOGY LLC
    Inventors: Donald D. Soleta, David R. Eaton, Peter E. Rogers, Eduardo A. Casanova, John Wagenknecht, Leonard Aynardi, David Z. Becher, Robert E. Byrd, James P. Coleman, Walter K. Gavlick, Eric A. Haupfear, Oliver Lerch, Carl Mumford, Alfredo Oba, Stephen D. Prosch, Bart Roose, Mark D. Scaia, Lowell R. Smith
  • Control of N-(phosphonomethyl)iminodiacetic acid conversion in manufacture of glyphosate
    Patent number: 7799571
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: September 21, 2010
    Assignee: Monsanto Technology LLC
    Inventors: Donald D. Soleta, David R. Eaton, Peter E. Rogers, Eduardo A. Casanova, John Wagenknecht, Leonard Aynardi, David Z. Becher, Robert E. Byrd, James P. Coleman, Walter K. Gavlick, Eric A. Haupfear, Oliver Lerch, Carl Mumford, Alfredo Oba, Stephen D. Prosch, Bart Roose, Mark D. Scaia, Lowell R. Smith
  • Process for the preparation of N-phosphonomethylglycine and derivatives thereof
    Patent number: 7750180
    Abstract: N-phosphonomethylamines are produced by reaction of an amine substrate with a halomethylphosphonic acid or salt thereof, a hydroxymethylphosphonic acid or salt thereof, or a dehydrated self-ester dimer, trimer or oligomer of hydroxymethylphosphonic acid. Among the products that may be prepared according to the process are N-phosphonomethylaminocarboxylic acids such as (e.g.) glyphosate, N-phosphonomethylaminoalkanols such as (e.g.) hydroxyethlaminomethylphosphonic acid, and N-acylaminomethylphosphonic acids such as (e.g.) N-carbamylaminomethylphosphonic acid. Certain reactions are conducted with a substantial excess of amine reactant in order to drive the conversion while avoiding excessive formation of bis(N-phosphonomethyl)amine by-products.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: July 6, 2010
    Assignee: Monsanto Technology LLC
    Inventors: James P. Coleman, Jerry R. Ebner, Eric A. Haupfear, Patrick J. Lennon, Joseph A. Schaper, Samuel J. Tremont, Serge G. Wolfson, Philip H. Brodsky
  • Process for recovering a crystalline product from solution
    Patent number: 7745660
    Abstract: An improved process for recovering a crystalline product (particularly an N-(phosphonomethyl)glycine product) from a solution comprising both a product subject to crystallization and undesired impurities is provided.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: June 29, 2010
    Assignee: Monsanto Technology LLC
    Inventors: Eric A. Haupfear, Eduardo A. Casanova, Kenneth S. Meyer, Henry H. Chien
  • Recovery of noble metals from aqueous process streams
    Patent number: 7687663
    Abstract: This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed oxidation of an N-(phosphonomethyl)iminodiacetic acid substrate. The process includes contacting the aqueous process stream with a noble metal adsorption media such as an ion exchange resin to remove solubilized noble metal from the process stream.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: March 30, 2010
    Assignee: Monsanto Technology LLC
    Inventors: Mark D. Scaia, David R. Eaton, Roger J. Hoekstra, Eric A. Haupfear
  • REACTION SYSTEMS FOR MAKING N-(PHOSPHONOMETHYL) GLYCINE COMPOUNDS
    Publication number: 20090259068
    Abstract: This invention generally relates to liquid phase oxidation processes for making N-(phosphonomethyl)glycine (also known in the agricultural chemical industry as glyphosate) and related compounds. This invention, for example, particularly relates to processes wherein an N-(phosphonomethyl)iminodiacetic acid (NPMIDA) substrate (i.e., N-(phosphonomethyl)iminodiacetic acid, a salt of N-(phosphonomethyl)iminodiacetic acid, or an ester of N-(phosphonomethyl)iminodiacetic acid) is continuously oxidized to form an N-(phosphonomethyl)glycine product (i.e., N-(phosphonomethyl)glycine, a salt of N-(phosphonomethyl)glycine, or an ester of N-(phosphonomethyl)glycine). This invention also, for example, particularly relates to processes wherein an N-(phosphonomethyl)iminodiacetic acid substrate is oxidized to form an N-(phosphonomethyl)glycine product, which, in turn, is crystallized (at least in part) in an adiabatic crystallizer.
    Type: Application
    Filed: February 4, 2009
    Publication date: October 15, 2009
    Applicant: MONSANTO TECHNOLOGY LLC
    Inventors: Eric Haupfear, Jerald D. Heise, Amy L. Jorgenson, Michael Rogers, Henry Chien, Eduardo Casanova, William Hooper, William Scholle, Juan Arhancet, Mark A. Leiber, Kent Wittler, Karen A. Wittler
  • Reaction systems for making N-(phosphonomethyl) glycine compounds
    Patent number: 7504534
    Abstract: This invention generally relates to liquid phase oxidation processes for making N-(phosphonomethyl)glycine (also known in the agricultural chemical industry as glyphosate) and related compounds. This invention, for example, particularly relates to processes wherein an N-(phosphonomethyl)iminodiacetic acid (NPMIDA) substrate (i.e., N-(phosphonomethyl)iminodiacetic acid, a salt of N-(phosphonomethyl)iminodiacetic acid, or an ester of N-(phosphonomethyl)iminodiacetic acid) is continuously oxidized to form an N-(phosphonomethyl)glycine product (i.e., N-(phosphonomethyl)glycine, a salt of N-(phosphonomethyl)glycine, or an ester of N-(phosphonomethyl)glycine). This invention also, for example, particularly relates to processes wherein an N-(phosphonomethyl)iminodiacetic acid substrate is oxidized to form an N-(phosphonomethyl)glycine product, which, in turn, is crystallized (at least in part) in an adiabatic crystallizer.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: March 17, 2009
    Assignee: Monsanto Technology LLC
    Inventors: Eric A. Haupfear, Henry Chien, Eduardo Casanova, William B. Hooper
  • Control of N-(Phosphonomethyl)Iminodiacetic Acid Conversion in Manufacture of Glyphosate
    Publication number: 20090011515
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Application
    Filed: April 3, 2006
    Publication date: January 8, 2009
    Applicant: MONSANTO TECHNOLOGY LLC
    Inventors: Donald D. Soleta, David R. Eaton, Peter E. Rogers, Eduardo A. Casanova, John Wagenknecht, Leonard Aynardi, David Z. Becher, Robert E. Byrd, James P. Coleman, Walter K. Gavlick, Eric A. Haupfear, Oliver Lerch, Carl Mumford, Alfredo Oba, Stephen D. Prosch, Bart Roose, Mark D. Scaia, Lowell R. Smith
  • PROCESS FOR RECOVERING A CRYSTALLINE PRODUCT FROM SOLUTION
    Publication number: 20080183008
    Abstract: An improved process for recovering a crystalline product (particularly an N-(phosphonomethyl)glycine product) from a solution comprising both a product subject to crystallization and undesired impurities is provided.
    Type: Application
    Filed: February 13, 2007
    Publication date: July 31, 2008
    Applicant: MONSANTO TECHNOLOGY LLC
    Inventors: Eric A. Haupfear, Eduardo A. Casanova, Kenneth S. Meyer, Henry H. Chien
  • Process for recovering a crystalline product from solution
    Patent number: 7179936
    Abstract: An improved process for recovering a crystalline product (particularly an N-(phosphonomethyl)glycine product) from a solution comprising both a product subject to crystallization and undesired impurities is provided.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: February 20, 2007
    Assignee: Monsanto Technology LLC
    Inventors: Eric A. Haupfear, Eduardo A. Casanova, Kenneth S. Meyer, Henry H. Chien
  • Mitigating necrosis in transgenic glyphosate-tolerant cotton plants treated with herbicidal glyphosate formulations
    Publication number: 20070037708
    Abstract: This invention relates generally to improved methods and herbicidal glyphosate compositions for use in controlling the growth of weeds and unwanted vegetation, and particularly for use in controlling weeds in a crop of transgenic glyphosate-tolerant cotton plants by over-the-top, foliar application of a herbicidal glyphosate formulation.
    Type: Application
    Filed: March 3, 2006
    Publication date: February 15, 2007
    Applicant: Monsanto Technology, LLC
    Inventors: Stephen Prosch, Michael Seitz, Eric Haupfear, Eduardo Casanova, Peter Rogers, David Eaton, David Becher
  • Recovery of noble metals from aqueous process streams
    Publication number: 20060106248
    Abstract: This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed oxidation of an N-(phosphonomethyl)iminodiacetic acid substrate. The process includes contacting the aqueous process stream with a noble metal adsorption media such as an ion exchange resin to remove solubilized noble metal from the process stream.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 18, 2006
    Applicant: Monsanto Technology LLC
    Inventors: Mark Scaia, David Eaton, Roger Hoekstra, Eric Haupfear