Patents by Inventor Ken M. Nelson

Ken M. Nelson 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).

  • Efficient scalable syntheses of abscisic acid, 8?-acetylene abscisic acid and 8?-cyclopropyl abscisic acid
    Patent number: 9725392
    Abstract: Methods are provided for synthesis of abscisic acid and 8? analogues thereof (including an enantiopure 8?-acetylene analogue) including methods wherein the previously reported first step of oxidation of 2,6-dimethylphenol (VI) to 2,6-dimethylbenzoquinone, mono ketal (VII) is replaced by a novel two step process comprising (i) oxidation of 2,6-dimethylphenol (VI) using potassium peroxymonosulfate with a catalytic amount of iodobenzene to produce 2,6-dimethylbenzoquinone (XVI) and (ii) ketalization of 2,6-dimethylbenzoquinone (XVI) using ethylene glycol, trimethylorthoformate with a catalytic amount of p-toluenesulfonic acid to produce 2,6-dimethylbenzoquinone, mono ketal (VII).
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: August 8, 2017
    Assignee: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Vishal Jheengut, Ken M. Nelson, Suzanne R. Abrams
  • EFFICIENT SCALABLE SYNTHESES OF ABSCISIC ACID, 8'-ACETYLENE ABSCISIC ACID AND 8'-CYCLOPROPYL ABSCISIC ACID
    Publication number: 20170057899
    Abstract: Methods are provided for synthesis of abscisic acid and 8? analogues thereof (including an enantiopure 8?-acetylene analogue) including methods wherein the previously reported first step of oxidation of 2,6-dimethylphenol (VI) to 2,6-dimethylbenzoquinone, mono ketal (VII) is replaced by a novel two step process comprising (i) oxidation of 2,6-dimethylphenol (VI) using potassium peroxymonosulfate with a catalytic amount of iodobenzene to produce 2,6-dimethylbenzoquinone (XVI) and (ii) ketalization of 2,6-dimethylbenzoquinone (XVI) using ethylene glycol, trimethylorthoformate with a catalytic amount of p-toluenesulfonic acid to produce 2,6-dimethylbenzoquinone, mono ketal (VII).
    Type: Application
    Filed: August 19, 2016
    Publication date: March 2, 2017
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Vishal JHEENGUT, Ken M. NELSON, Suzanne R. ABRAMS
  • Synthesis and biological activity of bicyclic ABA analogs
    Patent number: 8969249
    Abstract: Bicyclic abscisic acid (ABA) analogs of Formula (I) and (II) and the process for their production are disclosed. The bicyclic ABA analogs include the structural elements and functional groups of the parent molecule that are required for activity, and have an aromatic ring fused to the ring replacing the vinyl methyl group of absicisie acid. Methods for using the bicyclic ABA analogs to inhibit cell growth and seed germination are also disclosed.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: March 3, 2015
    Assignee: National Research Council of Canada
    Inventors: Suzanne Abrams, Adrian J. Cutler, Patricia Rose, James Nyangulu, Ken M. Nelson
  • Synthesis and Biological Activity of Bicyclic Aba Analogs
    Publication number: 20080200339
    Abstract: Bicyclic abscisic acid (ABA) analogs of Formula (I) and (II) and the process for their production are disclosed. The bicyclic ABA analogs include the structural elements and functional groups of the parent molecule that are required for activity, and have an aromatic ring fused to the ring replacing the vinyl methyl group of absicisie acid. Methods for using the bicyclic ABA analogs to inhibit cell growth and seed germination are also disclosed.
    Type: Application
    Filed: May 10, 2005
    Publication date: August 21, 2008
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Suzanne Abrams, Adrian J. Cutler, Patricia Rose, James Nyangulu, Ken M. Nelson