Patents by Inventor Ke Wen Li

Ke Wen 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).

  • Manufacture of petroleum coke with fines recycling
    Patent number: 4082650
    Abstract: Yield and coke quality of a delayed coking and coke calcining process is improved by addition of coke fines to a coke drum at a temperature approximately equal to or higher than that of the incoming liquid hydrocarbon residuum feedstock during the coking operation.
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: April 4, 1978
    Assignee: Continental Oil Company
    Inventor: Ke Wen Li