Patents by Inventor Donald H. Hess

Donald H. Hess 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).

  • Patent number: 9468935
    Abstract: Disclosed is a system for filtering airborne particles from an occupied space. The system permits the removal of airborne particles by manipulating both the charge and the size of the particles, thus enabling the capture of particles that most other typical filtration systems leave behind. More specifically, the system captures small airborne particles through the use of a series of electric fields, forcing them to be trapped in a series of filters or collide to form larger particles, whereby their movement and capture are subsequently governed primarily by airflow. The system controls particle behavior by utilizing specific electromagnetic fields to collide particles, capture particles, and deactivate live pathogens that get captured.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 18, 2016
    Inventor: Donald H. Hess
  • Patent number: 9028588
    Abstract: Disclosed is a filtration system and method that uses a corona discharge grid and a series of electrostatic grids to filter ambient particles. The filtration system eliminates, or greatly reduces, the pressure drop across the associated filter media.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 12, 2015
    Inventor: Donald H. Hess
  • Publication number: 20140076163
    Abstract: Disclosed is a system for filtering airborne particles from an occupied space. The system permits the removal of airborne particles by manipulating both the charge and the size of the particles, thus enabling the capture of particles that most other typical filtration systems leave behind. More specifically, the system captures small airborne particles through the use of a series of electric fields, forcing them to be trapped in a series of filters or collide to form larger particles, whereby their movement and capture are subsequently governed primarily by airflow. The system controls particle behavior by utilizing specific electromagnetic fields to collide particles, capture particles, and deactivate live pathogens that get captured.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 20, 2014
    Inventor: Donald H. Hess
  • Publication number: 20120085234
    Abstract: Disclosed is a filtration system and method that uses a corona discharge grid and a series of electrostatic grids to filter ambient particles. The filtration system eliminates, or greatly reduces, the pressure drop across the associated filter media.
    Type: Application
    Filed: September 15, 2011
    Publication date: April 12, 2012
    Inventor: Donald H. Hess