Patents by Inventor Marcellinus Alexander Van Doorn

Marcellinus Alexander Van Doorn 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).

  • Use of a metal supplement in animal feed
    Patent number: 11208376
    Abstract: The invention pertains to the use of a supplement for making metals (nutritionally) available to animals, said supplement comprising at least one compound selected from the group consisting of glutamic acid N,N-diacetic acid (GLDA), a metal complex of GLDA, a sodium salt of GLDA, a potassium salt of GLDA, methylglycine-N,N-diacetic acid (MGDA), a metal complex of MGDA, a sodium salt of MGDA, a potassium salt of MGDA, ethylenediamine N,N?-disuccinic acid (EDDS), a metal complex of EDDS, a sodium salt of EDDS, a potassium salt of EDDS, iminodisuccinic acid (IDS), a metal complex of IDS, a sodium salt of IDS, and a potassium salt of IDS.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: December 28, 2021
    Assignee: Nouryon Chemicals International B.V.
    Inventors: Carel Theo Jozef Wreesmann, Adrianus Maria Reichwein, Marcellinus Alexander Van Doorn, Javier Martin-Tereso Lopéz
  • USE OF A METAL SUPPLEMENT IN ANIMAL FEED
    Publication number: 20120231112
    Abstract: The invention pertains to the use of a supplement for making metals (nutritionally) available to animals, said supplement comprising at least one compound selected from the group consisting of glutamic acid N,N-diacetic acid (GLDA), a metal complex of GLDA, a sodium salt of GLDA, a potassium salt of GLDA, methylglycine-N,N-diacetic acid (MGDA), a metal complex of MGDA, a sodium salt of MGDA, a potassium salt of MGDA, ethylenediamine N,N?-disuccinic acid (EDDS), a metal complex of EDDS, a sodium salt of EDDS, a potassium salt of EDDS, iminodisuccinic acid (IDS), a metal complex of IDS, a sodium salt of IDS, and a potassium salt of IDS.
    Type: Application
    Filed: October 26, 2010
    Publication date: September 13, 2012
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Carel Theo Jozef Wreesmann, Adrianus Maria Reichwein, Marcellinus Alexander Van Doorn, Javier Martin-Tereso Lopez
  • Process for preparing alkylene diamine triacetic acid
    Patent number: 6492549
    Abstract: A process for the preparation of alkylene diamine triacetic acid (derivatives) which comprises the conversion of an alkylene diamine (derivative) to a metal salt of an alkylene diamine triacetic acid (derivative). The reaction is carried out in the presence of a polyvalent metal ion Ma+ and the entire reaction is carried out under hydrolyzing conditions if any of the reactants contain or form nitrile or amide groups.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: December 10, 2002
    Assignee: Akzo Novel NV
    Inventors: Marcellinus Alexander Van Doorn, Johannes Wilhelmus Driessen, Tjerk Oedse Boonstra, Martin Heus
  • Process for preparing alkylene diamine triacetic acid
    Publication number: 20010007042
    Abstract: A process for the preparation of alkylene diamine triacetic acid (derivatives) which comprises the conversion of an alkylene diamine (derivative) to a metal salt of an alkylene diamine triacetic acid (derivative). The reaction is carried out in the presence of a polyvalent metal ion Ma+ and the entire reaction is carried out under hydrolyzing conditions if any of the reactants contain or form nitrile or amide groups.
    Type: Application
    Filed: January 2, 2001
    Publication date: July 5, 2001
    Inventors: Marcellinus Alexander Van Doorn, Johannes Wilhelmus Driessen, Tjerk Oedse Boonstra, Martin Heus
  • Aminoalkane diphosphonic acids in pulp bleaching
    Patent number: 5641386
    Abstract: A process for the bleaching of pulp comprising the step of bleaching the pulp with hydrogen peroxide and an effective amount of at least one biodegradable 1-aminoalkane-1,1-diphosphonate chelating agent to enhance the bleaching of the pulp, is disclosed. Also disclosed is the use of a 1-aminoalkane-1,1-diphosphonate to enhance the bleaching of pulp with hydrogen peroxide, as well as the pretreatment of pulp with a 1-aminoalkane-1,1-diphosphonate prior to the step of bleaching with hydrogen peroxide. Finally, the deinking of pulp in the presence of 1-aminoalkane-1,1-diphosphonate is also disclosed.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: June 24, 1997
    Assignee: Akzo Nobel NV
    Inventors: Eltjo Boelema, Charles Manuel Navarro, Lambertus Gerhardus Johannus Olde Hanter, Marcellinus Alexander Van Doorn