Patents by Inventor Dingiun Wu

Dingiun Wu 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).

  • Process for removing water from ammonia
    Patent number: 6892473
    Abstract: This invention relates to an improvement in a process for removing water from a hydride gas, and particularly ammonia, by contacting the hydride gas with a drying agent under conditions for effecting removal of the water. The improvement for significantly reducing the water content to trace levels in said hydride gas resides in the use of at least Group 1 metal oxide and at least one Group 2 metal oxide as a drying agent.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: May 17, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert Ling Chiang, Roger Dean Whitley, Dingiun Wu, Chun Christine Dong, Madhukar Bhaskara Rao