Patents by Inventor Bill Mattfeld

Bill Mattfeld 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).

  • MODULAR FILTER AND VACUUM HEAD ASSEMBLY FOR A FILTERING APPARATUS
    Publication number: 20090026152
    Abstract: The disclosed modular filter may include a filter medium and an external frame structure. The filter medium may form a chamber having a front side, a back side, and a periphery. The filter medium may also have a plurality of fibers. The external frame structure has at least one aperture mounted on at least one of the front side and back side of the chamber in which the external frame structure has a thickness greater than the lengths of the plurality of fibers.
    Type: Application
    Filed: June 19, 2008
    Publication date: January 29, 2009
    Inventors: Tony COLLINS, Brett Boyd, Bill Mattfeld