Patents by Inventor Leonard Marvin Henrikson

Leonard Marvin Henrikson 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).

  • Portable air filtration tool (PAFT)
    Publication number: 20040211162
    Abstract: This invention treats the design of portable elements quickly assembled into one unit to filter air for a spectrum of contaminants from air supplied, extracted or circulated in an enclosed space.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Inventor: Leonard Marvin Henrikson