Patents by Inventor Krupal Devendra Pal

Krupal Devendra Pal 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).

  • Acetylation of cannabinol
    Publication number: 20210379507
    Abstract: A process for producing THC-O-acetate using a succession of distillation, salting-out assisted liquid-liquid extractions (SALLEs), and solvent recovery techniques. Tetrahydrocannabinol (THC) in cannabis oil reacts with acetic anhydride under reflux to produce THC-O-acetate and acetic acid. The resulting crude product is distilled and subjected to a SALLE with hexane followed by a SALLE with petroleum ether, before being distilled again in order to obtain a refined, THC-O-acetate product.
    Type: Application
    Filed: August 21, 2021
    Publication date: December 9, 2021
    Inventors: Krupal Devendra Pal, Ryan Delmoral Ko, Brock Aston Hughes, Ivan Jason Casselman
  • Acetylation of cannabigerol
    Patent number: 11097204
    Abstract: A process for producing THC-O-acetate using a succession of distillation, salting-out assisted liquid-liquid extractions (SALLEs), and solvent recovery techniques. Tetrahydrocannabinol (THC) in cannabis oil reacts with acetic anhydride under reflux to produce THC-O-acetate and acetic acid. The resulting crude product is distilled and subjected to a SALLE with hexane followed by a SALLE with petroleum ether, before being distilled again in order to obtain a refined, THC-O-acetate product.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: August 24, 2021
    Assignee: Nextleaf Solutions Ltd.
    Inventors: Krupal Devendra Pal, Ryan Delmoral Ko, Brock Aston Hughes, Ivan Jason Casselman
  • Cannabis trichome separation using a tumbler
    Patent number: 11000856
    Abstract: Raw cannabis plant material is dried, coarsely ground, agitated while chilled, sifted and collected to result in cannabis plant material rich in trichomes. Dried cannabis plant material is coarsely ground using a grinder. The coarsely ground cannabis plant matter is agitated in a tumbler in a cooled environment to separate the trichomes from the remainder of the plant matter. The trichomes are then sieved using a sieve shaker with sieves of different mesh sizes mounted in a tower. Chilling the plant material embrittles the trichomes so that they can be removed more easily from the remainder of the plant material.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: May 11, 2021
    Assignee: Nextleaf Solutions Ltd.
    Inventors: Krupal Devendra Pal, Thomas Adam Ulanowski, Ivan Jason Casselman
  • Acetylation of cannabigerol
    Publication number: 20200398183
    Abstract: A process for producing THC-O-acetate using a succession of distillation, salting-out assisted liquid-liquid extractions (SALLEs), and solvent recovery techniques. Tetrahydrocannabinol (THC) in cannabis oil reacts with acetic anhydride under reflux to produce THC-O-acetate and acetic acid. The resulting crude product is distilled and subjected to a SALLE with hexane followed by a SALLE with petroleum ether, before being distilled again in order to obtain a refined, THC-O-acetate product.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Krupal Devendra Pal, Ryan Delmoral Ko, Brock Aston Hughes, Ivan Jason Casselman
  • Cannabis trichome separation using a tumbler
    Publication number: 20200360930
    Abstract: Raw cannabis plant material is dried, coarsely ground, agitated while chilled, sifted and collected to result in cannabis plant material rich in trichomes. Dried cannabis plant material is coarsely ground using a grinder. The coarsely ground cannabis plant matter is agitated in a tumbler in a cooled environment to separate the trichomes from the remainder of the plant matter. The trichomes are then sieved using a sieve shaker with sieves of different mesh sizes mounted in a tower. Chilling the plant material embrittles the trichomes so that they can be removed more easily from the remainder of the plant material.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 19, 2020
    Inventors: Krupal Devendra Pal, Thomas Adam Ulanowski, Ivan Jason Casselman
  • Acetylation of cannabidiol
    Patent number: 10792584
    Abstract: A process for producing THC-O-acetate using a succession of distillation, salting-out assisted liquid-liquid extractions (SALLEs), and solvent recovery techniques. Tetrahydrocannabinol (THC) in cannabis oil reacts with acetic anhydride under reflux to produce THC-O-acetate and acetic acid. The resulting crude product is distilled and subjected to a SALLE with hexane followed by a SALLE with petroleum ether, before being distilled again in order to obtain a refined, THC-O-acetate product.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: October 6, 2020
    Assignee: Nextleaf Solutions Ltd.
    Inventors: Krupal Devendra Pal, Ryan Delmoral Ko, Brock Aston Hughes, Ivan Jason Casselman
  • Method for acetylation of cannabinoids
    Patent number: 10569189
    Abstract: A process for producing THC-O-acetate using a succession of distillation, salting-out assisted liquid-liquid extractions (SALLEs), and solvent recovery techniques. Tetrahydrocannabinol (THC) in cannabis oil reacts with acetic anhydride under reflux to produce THC-O-acetate and acetic acid. The resulting crude product is distilled and subjected to a SALLE with hexane followed by a SALLE with petroleum ether, before being distilled again in order to obtain a refined, THC-O-acetate product.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: February 25, 2020
    Assignee: Nextleaf Solutions Ltd.
    Inventors: Krupal Devendra Pal, Ryan Delmoral Ko, Brock Aston Hughes, Ivan Jason Casselman