Patents by Inventor Steven R. Lillquist

Steven R. Lillquist 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).

  • Air cleaning fan/fan blade
    Patent number: 7674305
    Abstract: A fan blade having a hollow housing allowing air to enter into the front or rear opening of the fan blade and directed to exit out the side opening of the fan blade after having passed through a filter. Use of this fan blade is a method for removing particulates from the air.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: March 9, 2010
    Inventor: Steven R. Lillquist
  • Air cleaning fan/fan blade
    Publication number: 20080047241
    Abstract: A fan blade having a hollow housing allowing air to enter into the front or rear opening of the fan blade and directed to exit out the side opening of the fan blade after having passed through a filter. Use of this fan blade is a method for removing particulates from the air.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Inventor: Steven R. Lillquist