Patent 9783775 was granted and assigned to FloDesign Sonics on October, 2017 by the United States Patent and Trademark Office.
A perfusion bioreactor includes at least one ultrasonic transducer that can acoustically generate a multi-dimensional standing wave. The standing wave can be used to retain cells in the bioreactor, and can also be utilized to dewater or further harvest product from the waste materials produced in a bioreactor.