Patents by Inventor Jim Lepage

Jim Lepage 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).

  • Glutamic acid N,N-diacetic amide, glutamic acid N-acetic amide N-acetonitrile, alkali metal salts thereof, process to prepare them and their use
    Patent number: 9080133
    Abstract: The present invention relates to glutamic acid N,N-diacetic amide, potassium or sodium glutamate N,N-diacetic amide, glutamic acid N-acetic amide N-acetonitrile, potassium or sodium glutamate N-acetic amide N-acetonitrile, to processes to prepare such compounds and the use thereof.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: July 14, 2015
    Assignee: AKZO NOBEL N.V.
    Inventors: Tjerk Oedse Boonstra, Martin Heus, Axel Carstens, Jim Lepage
  • GLUTAMIC ACID N,N-DIACETIC AMIDE, GLUTAMIC ACID N-ACETIC AMIDE N-ACETONITRILE, ALKALI METAL SALTS THEREOF, PROCESS TO PREPARE THEM AND THEIR USE
    Publication number: 20100222610
    Abstract: The present invention relates to glutamic acid N,N-diacetic amide, potassium or sodium glutamate N,N-diacetic amide, glutamic acid N-acetic amide N-acetonithle, potassium or sodium glutamate N-acetic amide N-acetonitrile, to processes to prepare such compounds and the use thereof.
    Type: Application
    Filed: August 14, 2008
    Publication date: September 2, 2010
    Applicant: AKZO NOBEL N.V.
    Inventors: Tjerk Oedse Boonstra, Martin Heus, Axel Carstens, Jim Lepage
  • Aqueous solution of a sodium salt of HEDTA
    Patent number: 7211682
    Abstract: The invention pertains to an aqueous solution of a sodium salt xNa+ yH+ of the chelating compound of formula I: wherein x=2.1–2.7, y=0.9–0.3, and x+y=3. The invention further pertains to a container comprising at least 0.5 kg of said aqueous solution and to a method of preparing an aqueous solution comprising at least 45 wt % of the sodium salt xNa+ yH+ of the chelating compound of formula I from Na3-HEDTA, comprising the steps of electrodialysing an aqueous solution containing less than 42 wt % of Na3-HEDTA using a bipolar membrane, thereby converting the trisodium salt solution to the solution of the sodium salt of formula I with x=2.1–2.7, y=0.9–0.3, and x+y=3.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: May 1, 2007
    Assignee: Akzo Nobel N.V.
    Inventors: Martin Heus, Hans Lammers, Jim Lepage
  • Aqueous solution of a sodium salt of hedta
    Publication number: 20070015930
    Abstract: The invention pertains to an aqueous solution of a sodium salt xNa+ yH+ of the chelating compound of formula I: wherein x=2.1?2.7, y=0.9?0.3, and x+y=3. The invention further pertains to a container comprising at least 0.5 kg of said aqueous solution and to a method of preparing an aqueous solution comprising at least 45 wt % of the sodium salt xNa+ yH+ of the chelating compound of formula I from Na3-HEDTA, comprising the steps of electrodialysing an aqueous solution containing less than 42 wt % of Na3-HEDTA using a bipolar membrane, thereby converting the trisodium salt solution to the solution of the sodium salt of formula I with x=2.1?2.7, y=0.9?0.3, and x+y=3.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 18, 2007
    Inventors: Martin Heus, Hans Lammers, Jim Lepage