Patents by Inventor John Charles Henderson

John Charles Henderson 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).

  • Building ventilation system and method
    Publication number: 20030089060
    Abstract: A ventilation system and material therefor includes a passage beneath the shingle layer of the roof of a building. The passage leads from the exterior of the building to the interior of the attic of the building. The passage is plugged with an air permeable polymeric material to allow passage of air from the exterior of the building to the interior of the building, and vice versa. The polymeric material is preferably shaped with a tapered thickness.
    Type: Application
    Filed: October 25, 2002
    Publication date: May 15, 2003
    Inventors: John Charles Henderson, Curtis McCorsley