Patents by Inventor Wiliam B. Johnson

Wiliam B. Johnson 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).

  • Composite Membrane and Moisture Adjustment Module Using Same
    Publication number: 20090324929
    Abstract: A composite membrane and moisture adjustment module using the same is disclosed. The composite membrane includes a moisture-permeable resin layer interposed between porous membranes that constitute a pair; and the mean thickness of the moisture-permeable resin layer is 5 ?m or less.
    Type: Application
    Filed: September 26, 2008
    Publication date: December 31, 2009
    Inventors: Keiichi Yamakawa, Wiliam B. Johnson, Mahesh Murthy, Thomas Berta