Patents by Inventor Tonghu Jiang

Tonghu Jiang 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).

  • Freeze drying with constant-pressure and constant-temperature phases
    Patent number: 11287185
    Abstract: Freeze-drying methods and systems include performing a constant-pressure drying phase in a chamber, where a temperature of a heating tray increases. A constant-temperature drying phase is performed in the chamber, where a pressure in the chamber decreases. Additional phases alternate between constant-pressure drying phases and constant-temperature drying phases. The alternating drying phases are halted, responsive to a determination that the temperature of the heating tray has reached a maximum temperature.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: March 29, 2022
    Assignee: STAY FRESH TECHNOLOGY, LLC
    Inventor: Tonghu Jiang
  • FREEZE DRYING WITH CONSTANT-PRESSURE AND CONSTANT-TEMPERATURE PHASES
    Publication number: 20220074661
    Abstract: Freeze-drying methods and systems include performing a constant-pressure drying phase in a chamber, where a temperature of a heating tray increases. A constant-temperature drying phase is performed in the chamber, where a pressure in the chamber decreases. Additional phases alternate between constant-pressure drying phases and constant-temperature drying phases. The alternating drying phases are halted, responsive to a determination that the temperature of the heating tray has reached a maximum temperature.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 10, 2022
    Inventor: Tonghu Jiang