Patents by Inventor Devon Kinkhead

Devon Kinkhead 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).

  • Filters employing porous strongly acidic polymers
    Patent number: 6447584
    Abstract: A clean, high efficiency, low pressure drop, adsorptive filter material that is porous and includes an acidic functional group. The filter can include, for example, a non-woven filter composite has a porous sulfonated divinyl benzene styrene copolymer beads having sulfonic acid functional side groups. The non-woven filter is used to remove molecular bases, including ammonia, organic amines, inides, aminoalcohols, alcoholoamines from the atmosphere used in semiconductor fabrication and other processes that require uncontaminated gaseous environments of high quality.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: September 10, 2002
    Assignee: Extraction Systems, Inc.
    Inventors: Oleg Kishkovich, Robert W. Rezuke, Devon Kinkhead