Patents by Inventor Leslie Archer

Leslie Archer 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).

  • METHODS OF PREPARING CANNABINOIDS FROM PLANT MATERIAL
    Publication number: 20150203434
    Abstract: The invention relates to methods of preparing cannabinoids in substantially pure form starting from plant material. Also described are substantially pure preparations of various cannabinoids and cannabinoid acids, and also extracts enriched in cannabinoids and cannabinoid acids.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 23, 2015
    Inventors: Ian R. Flockhart, Gary William Wheatley, Su Dring, Leslie Archer
  • Methods of preparing cannabinoids from plant material
    Patent number: 8846409
    Abstract: The invention relates to methods of preparing cannabinoids in substantially pure form starting from plant material. Also described are substantially pure preparations of various cannabinoids and cannabinoid acids, and also extracts enriched in cannabinoids and cannabinoid acids.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: September 30, 2014
    Assignee: GW Pharma Limited
    Inventors: Ian R. Flockhart, Gary William Wheatley, Su Dring, Leslie Archer
  • Methods of Preparing Cannabinoids From Plant Material
    Publication number: 20100168448
    Abstract: The invention relates to methods of preparing cannabinoids in substantially pure form starting from plant material. Also described are substantially pure preparations of various cannabinoids and cannabinoid acids, and also extracts enriched in cannabinoids and cannabinoid acids.
    Type: Application
    Filed: March 1, 2010
    Publication date: July 1, 2010
    Applicant: GW Pharma Limited
    Inventors: Ian Flockhart, Gary William Wheatley, Su Dring, Leslie Archer
  • Methods of purifying cannabinoids from plant material
    Publication number: 20050266108
    Abstract: The invention relates to methods of preparing cannabinoids in substantially pure form starting from plant material. Also described are substantially pure preparations of various cannabinoids and cannabinoid acids, and also extracts enriched in cannabinoids and cannabinoid acids.
    Type: Application
    Filed: September 23, 2003
    Publication date: December 1, 2005
    Applicant: Gw Pharma Limited
    Inventors: Ian Flockhart, Gary Wheatley, Su Dring, Leslie Archer