Company Filing History:
7 out of 1,415 
5 out of 10 
1 out of 45 
Years Active: 1993-2018
Title: J Gregory Zeikus: Innovator in Bioreactor Technology
Introduction
J Gregory Zeikus is a prominent inventor based in Okemos, Michigan, known for his significant contributions to bioreactor technology. With a total of 13 patents to his name, Zeikus has made remarkable advancements in the field of biotechnology.
Latest Patents
One of his latest innovations is the vertical wheel bioreactor, which features a pneumatic design that includes a vessel containing a fluid to be mixed and at least one mixing device driven by gas pressure. A first embodiment of this invention includes a floating impeller that rises and falls in the fluid as gas bubbles carry it upward to the surface, where the gas is vented, allowing the impeller to sink back into the fluid. The floating impeller may be tethered to a second impeller with a flexible member and pulley. The mixing speed is controlled using electromagnets in the vessel that act upon magnetic material in the impeller or its guides. In another embodiment, floating pistons mix the fluid by pushing it through a mixing plate with one or more apertures. Additionally, a third embodiment features a rotating drum with bubble-catching blades and rotating mixing plates with apertures. The top of the vessel for these mixers may include a closed top and sterile filters.
Career Highlights
Throughout his career, J Gregory Zeikus has worked with notable institutions, including Michigan State University and Pbs Biotech, Inc. His work has significantly impacted the development of biotechnological processes and equipment.
Collaborations
Some of his notable coworkers include Claire Vieille and Maris Laivenieks, who have collaborated with him on various projects in the field of biotechnology.
Conclusion
J Gregory Zeikus continues to be a leading figure in bioreactor technology, with his innovative designs and patents paving the way for advancements in the biotechnology industry. His contributions are invaluable to the field and demonstrate the importance of innovation in scientific research.