Patents by Inventor Jefferson Lievense

Jefferson Lievense 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).

  • Publication number: 20220098625
    Abstract: Methods of recovering cannabinoids from cell cultures include methods comprising steps of separating the cell culture at a temperature above the melting point of the cannabinoid to separate a light phase comprising liquid state cannabinoid from a heavy phase; and methods comprising treating the cell culture at a temperature below the melting point of the cannabinoid to separate a light phase from a heavy phase comprising solid state cannabinoid. Other methods include contacting the culture with a water-miscible solvent to form a water-miscible phase and an aqueous phase, separating the two phases and recovering the cannabinoid. Other methods include contacting the culture with a water-immiscible solvent to form a water-immiscible phase and an aqueous phase, separating the two phases, and recovering the cannabinoid. Other methods include washing the inner surface of a fermentation vessel with alkaline solution to recover cannabinoid attached to the vessel surface.
    Type: Application
    Filed: January 30, 2020
    Publication date: March 31, 2022
    Inventors: Lauri H. Suominen, Jefferson Lievense, Aiguo Liu, Jorge Jesus Martinez-Gonzalez, Myong Kon Ko, Wei Nan
  • Publication number: 20050112737
    Abstract: Disclosed herein are yeasts, which, when cultured, can produce relatively high concentrations of lactic acid. Also disclosed herein are culture media that result in relatively lower levels of by-product impurities when lactic acid-producing yeast are cultured in them.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Inventors: Chi Liu, Jefferson Lievense
  • Publication number: 20050069997
    Abstract: A process for purifying 1,3-propanediol from the fermentation broth of a cultured E. coli that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.
    Type: Application
    Filed: May 5, 2004
    Publication date: March 31, 2005
    Inventors: Dennis Adkesson, Albert Alsop, Tyler Ames, Luis Chu, James Disney, Bryan Dravis, Patrick Fitzgibbon, James Gaddy, F. Gallagher, William Lehnhardt, Jefferson Lievense, Michael Luyben, Mayis Seapan, Robert Trotter, Gregory Wenndt, Eugene Yu