Patents by Inventor Hsin-Ju J. Wang

Hsin-Ju J. Wang 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).

  • Catalytic dewaxing
    Patent number: 5053117
    Abstract: An improved process for catalytically dewaxing low nitrogen content hydrocarbon oils, such as distilled hydrocracker bottoms which normally form by-product naphtha of variable, but poor octane quality. The improvement is achieved by doping the low nitrogen content oil with a small amount of high nitrogen content gas oil, resulting in a by-product naphtha having a clear research octane of about 90, which octane is relatively insensitive to adjustment of pour point during processing.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: October 1, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Chwan P. Kyan, Rene B. LaPierre, Hsin-Ju J. Wang