Patents by Inventor Conglin Peng

Conglin Peng 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).

  • Solvent-free processes for making light stable ISO-alpha-acids derivatives from both hop alpha-acids and beta-acids resins
    Patent number: 9222064
    Abstract: Tetrahydro iso-?-acids and hexahydro iso-?-acids are prepared from ?-acid resins in the presence of ?-acids derivatives without the use of conventional organic solvents. Specifically, the hydrogenation and hydrogenolyzis step is performed using a liquefied hop resin composed of ?-acids and ?-acid derivatives, hydrogen, and a noble metal hydrogenation catalyst to form desoxytetrahydro ?-acids and hydrogenated iso-?-acid derivatives (e. g., tetrahydroiso- and hexahydro iso-?-acids). The desoxytetrahydro ?-acids are subsequently auto-oxidized and isomerized by the spent noble metal catalyst in an aqueous alkaline solution (without adding peracids, lead, calcium, or magnesium salts) into the desired tetrahydro iso-?-acids and hexahydro iso-?-acids.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: December 29, 2015
    Assignee: Hop Ting Resources, LLC
    Inventors: Patrick L. Ting, Lixin Zhu, Conglin Peng