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).

  • Reaction systems for making N-(phosphonomethyl) glycine compounds
    Publication number: 20060079712
    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: November 22, 2005
    Publication date: April 13, 2006
    Applicant: Monsanto Technology LLC
    Inventors: Eric Haupfear, Jerald Heise, Amy Jorgenson, Michael Rogers, Henry Chien, Eduardo Casanova, William Hooper, William Scholle, Juan Arhancet, Mark Leiber, Kent Wittler, Karen Wittler
  • Reaction systems for making N-(phosphonomethyl) glycine compounds
    Patent number: 7015351
    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: May 22, 2001
    Date of Patent: March 21, 2006
    Assignee: 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, Karen A. Wittler, legal representative, Kent Wittler, deceased
  • Process for recovering a crystalline product from solution
    Publication number: 20050059840
    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: September 17, 2004
    Publication date: March 17, 2005
    Inventors: Eric Haupfear, Eduardo Casanova, Kenneth Meyer, Henry Chien
  • Process for the preparation of N-phosphonomethylglycine and derivatives thereof
    Publication number: 20050054871
    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: Application
    Filed: August 23, 2004
    Publication date: March 10, 2005
    Inventors: James Coleman, Jerry Ebner, Eric Haupfear, Patrick Lennon, Joseph Schaper, Samuel Tremont, Serge Wolfson, Philip Brodsky
  • Reaction systems for making N- (phosphonomethyl) glycine compounds
    Publication number: 20020068836
    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: May 22, 2001
    Publication date: June 6, 2002
    Applicant: Monsanto Company
    Inventors: Eric Haupfear, Jerald D. Heise, Amy L. Jorgenson, Michael Rogers, Henry Chien, Eduardo Cananova, William Hooper, William Scholle, Juan Arhancet, Mark A. Leiber, Kent Wittler, Karen A. Wittler