Patents by Inventor Xiwei Li

Xiwei 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).

  • Patent number: 5767385
    Abstract: An automated forced-choice dynamic-dilution olfactometer has an odor evaluation module having two or more panelist stations, with a plurality of sniffing ports at each station. At least one signal element at each station is connected to a data control unit. Separate air lines are connected to one each of the sniffing ports at each station. One of the air lines has an odor introduction port.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 16, 1998
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Dwaine S. Bundy, Wen-Hua Huang, Steven J. Hoff, Qianbao Liu, Xiwei Li