Patents by Inventor Fengfei Li

Fengfei Li 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).

  • Nitrogen-containing diesel solidification point depressant composition, and preparation and application thereof
    Patent number: 11999919
    Abstract: The present invention relates to a nitrogen-containing diesel solidification point depressant composition, and preparation and application thereof. The nitrogen-containing diesel solidification point depressant composition includes the following components in percentage by weight: 10-40% of monoisopropanolamine; 10-40% of cyclohexane; 0-20% of polyethylene glycol; and 40-60% of N-tetradecyl methacrylamide-tetradecyl methacrylate. After the prepared diesel solidification point depressant composition is added to commercially available 0 #diesel, a solidification point and a cold filter plugging point of the diesel are respectively depressed by 21-25° C. and 9-13° C.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: June 4, 2024
    Assignee: SHANGHAI INSTITUTE OF TECHNOLOGY
    Inventors: Sheng Han, Hualin Lin, Suya Yin, Xin Li, Mingxia Yuan, Maiying Xie, Fengfei Chen, Taishun Yang
  • Continuous distillation process
    Patent number: 11505764
    Abstract: A continuous distillation process comprises the following steps: putting a material into a multilayer distillation tower to enable the material to sequentially undergo preheating, extrusion pricking, steam distillation, meal roasting, drying and cooling treatment, condensing essential oil-containing steam, and carrying out water separation, so as to obtain an essential oil.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 22, 2022
    Inventors: Lijun Qi, Shaowei Han, Shaodong Ji, Fengfei Li, Wenjiang Yang, Haijun Bao
  • CONTINUOUS DISTILLATION PROCESS
    Publication number: 20200255765
    Abstract: A continuous distillation process comprises the following steps: putting a material into a multilayer distillation tower to enable the material to sequentially undergo preheating, extrusion pricking, steam distillation, meal roasting, drying and cooling treatment, condensing essential oil-containing steam, and carrying out water separation, so as to obtain an essential oil.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 13, 2020
    Applicant: CHENGUANG BIOTECH GROUP CO., LTD.
    Inventors: Lijun Qi, Shaowei Han, Shaodong Ji, Fengfei Li, Wenjiang Yang, Haijun Bao