Patents by Inventor Ruth Chan

Ruth Chan 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).

  • Gravity flow carbon block filter
    Publication number: 20060000763
    Abstract: A gravity flow carbon block filter comprising approximately 20-90 wt % activated carbon particles having a mean particle size in the range of approximately 90-220 ?m, and approximately 10-50 wt % low melt index polymeric material. The low melt index polymeric material can have a melt index less than 1.0 g/10 min or greater than 1.0 g/10 min and a mean particle size in the range of approximately 20-150 ?m.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Edward Rinker, Toni Lynch, Ruth Chan, Alex Tipton, Bruce Saaski