To date, we have filed 9 U.S. Patent Applications to protect various aspect of the Air™ by Microclimate. These patent applications cover everything from the basic negative airflow design to the changeable/washable filter fabric. We have even filed a patent application on using a shroud with the device to provide enhanced user privacy. We are driven by innovation at Microclimate. We will continue to file patent applications to protect the new concepts that come along.