Patents by Inventor Erik Keller

Erik Keller 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).

  • Patent number: 11091455
    Abstract: ?9-THC carboxylic acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC carboxylic acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: August 17, 2021
    Assignee: APIRx Pharmaceutical USA, LLC
    Inventors: Lekhram Changoer, Cornelis Herman Michel Van Der Loo, Erik Keller
  • Publication number: 20200165219
    Abstract: ?9-THC carboxylic acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC carboxylic acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Application
    Filed: January 28, 2020
    Publication date: May 28, 2020
    Inventors: Lekhram CHANGOER, Cornelis Herman Michel VAN DER LOO, Erik KELLER
  • Publication number: 20190177294
    Abstract: ?9-THC carboxylic acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC carboxylic acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 13, 2019
    Inventors: Lekhram CHANGOER, Cornelis Herman Michel VAN DER LOO, Erik KELLER
  • Patent number: 10246431
    Abstract: ?9-THC carboxylic acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC carboxylic acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: April 2, 2019
    Assignee: Axim Biotechnologies, Inc.
    Inventors: Lekhram Changoer, Cornelis Herman Michel Van Der Loo, Erik Keller
  • Publication number: 20180339973
    Abstract: ?9-THC carboxylic acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC carboxylic acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 29, 2018
    Inventors: Lekhram CHANGOER, Cornelis Herman Michel VAN DER LOO, Erik KELLER
  • Patent number: 10059684
    Abstract: ?9-THC acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: August 28, 2018
    Assignee: Axim Biotechnologies, Inc.
    Inventors: Lekhram Changoer, Cornelis Herman Michel Van Der Loo, Erik Keller
  • Publication number: 20160326130
    Abstract: ?9-THC acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. ?9-THC acid is converted to ?9-THC carboxylic salt before being extracted by a third organic solvent and converted back to ?9-THC carboxylic acid. Using a solvent swap, ?9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give ?9-THC.
    Type: Application
    Filed: May 4, 2016
    Publication date: November 10, 2016
    Inventors: Lekhram CHANGOER, Cornelis Herman Michel VAN DER LOO, Erik KELLER
  • Publication number: 20140135522
    Abstract: In the present invention, compositions that are suitable for use as dielectric fluids are obtained from renewably sourced oils, and blends thereof. Renewably sourced synthetic esters as described herein are prepared using components obtained from natural or biologic feedstocks, wherein the feedstocks can be regenerated via conventional farming techniques. Dielectric fluids that can meet the industry standards are obtained using a process of combining appropriate percentages of components selected from synthetic polyol esters, natural oils, and mineral oil to customize the properties of the dielectric fluid obtained. Some of the properties that can be manipulated in the practice of the present invention include: electrical strength, resistivity, impulse strength, dissipation factor, permittivity, specific heat, thermal conductivity, chemical stability, gas absorption, pour point, viscosity, volatility, flash and fire point, and biodegradability.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 15, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: HARI BABU SUNKARA, WEIMING QIU, SAM COTTERILL, ERIK KELLER
  • Publication number: 20120184537
    Abstract: The invention relates to a novel class of [1,4]-benzodiazepine derivatives, processes for their preparation, intermediates usable in these processes, and pharmaceutical compositions containing the compounds. Other aspects of the invention are directed to the use of said [1,4]-benzodiazepine derivatives in therapy based on the capability of said compounds to interfere with the binding of the peptide hormone, vasopressin, to its receptors. In particular as vasopressin V2 receptor antagonists and therefore useful for treating involving increased vascular resistance, cardiac insufficiency, and water retention.
    Type: Application
    Filed: September 23, 2010
    Publication date: July 19, 2012
    Inventors: Ann Meulemans, Karel Lavrijsen, Marina Cools, Erik Keller, Igor Alexnadrovich Mezine, Leen Thielemans, Maarten VAn Geffen
  • Publication number: 20110135790
    Abstract: The present invention relates to a water-free low viscous liquid bread improver, which comprises a liquid emulsifier based on esters of hydroxy polycarboxylic acid derivatives, a glyceride based stabilizer and additive(s) and less than about 20% oil, to the use thereof, and to a process for producing a liquid bread improver. The liquid bread improver according to the present invention may be used in, for example, a variety of products in the bakery industry or in extruded snacks.
    Type: Application
    Filed: February 16, 2011
    Publication date: June 9, 2011
    Inventors: Erik Jensen, Erik Keller
  • Patent number: 7910149
    Abstract: The present invention relates to a water-free low viscous liquid bread improver, which comprises a liquid emulsifier based on esters of hydroxy polycarboxylic acid derivatives, a glyceride based stabilizer and additive(s) and less than about 20% oil, to the use thereof, and to a process for producing a liquid bread improver. The liquid bread improver according to the present invention may be used in, for example, a variety of products in the bakery industry or in extruded snacks.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: March 22, 2011
    Assignee: Danisco A/S
    Inventors: Erik Jensen, Erik Keller
  • Publication number: 20050031763
    Abstract: The present invention relates to a water-free low viscous liquid bread improver, which comprises a liquid emulsifier based on esters of hydroxy polycarboxylic acid derivatives, a glyceride based stabilizer and additive(s) and less than about 20% oil, to the use thereof, and to a process for producing a liquid bread improver. The liquid bread improver according to the present invention may be used in, for example, a variety of products in the bakery industry or in extruded snacks.
    Type: Application
    Filed: May 5, 2004
    Publication date: February 10, 2005
    Inventors: Erik Jensen, Erik Keller