Patents by Inventor Delbert D. Christman

Delbert D. Christman 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).

  • Vacuum preparation of hydrogen halide drier
    Patent number: 6221132
    Abstract: An adsorbent and method for making it and its use in removing water from gaseous hydrogen halide. Magnesium halide supported on an activated carbon prepared under vacuum will remove water at 1 to 500 ppm.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: April 24, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Chun Christine Dong, Alexander Schwarz, Dean V. Roth, Delbert D. Christman