Patents by Inventor Zhengli YAO

Zhengli YAO 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: 8703222
    Abstract: A method and a device for making a coffee beverage are provided. The method includes: heating coffee powder by water vapor at a temperature lower than a sublimation temperature of caffeine to sublimate a volatile fat component in the coffee powder without sublimating the caffeine, and dissolving other water-soluble components in water at a temperature lower than 85° C. while only dissolving a little of the caffeine.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 22, 2014
    Assignee: Shenzhen Zofu Technology Co., Ltd.
    Inventor: Zhengli Yao
  • Publication number: 20120196014
    Abstract: A method and a device for making a coffee beverage are provided. The method includes: heating coffee powder by water vapor at a temperature lower than a sublimation temperature of caffeine to sublimate a volatile fat component in the coffee powder without sublimating the caffeine, and dissolving other water-soluble components in water at a temperature lower than 85° C. while only dissolving a little of the caffeine.
    Type: Application
    Filed: April 10, 2012
    Publication date: August 2, 2012
    Inventor: Zhengli YAO