Patents by Inventor Michael R. Mallabone

Michael R. Mallabone 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).

  • Filter media configuration
    Patent number: 5897776
    Abstract: An air filter has a filter media with a central portion and a boundary portion, the central portion having a greater density of filter area than the boundary portion. In one embodiment, this is accomplish by having more pleats in the central portion than the boundary portion and, in another embodiment, this is accomplished by having higher pleat amplitudes in the central portion than in the boundary portion.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: April 27, 1999
    Assignee: Dana Corporation
    Inventor: Michael R. Mallabone