Company Filing History:
Years Active: 2002-2009
Title: Innovations of Gregory Zeikus
Introduction
Gregory Zeikus is a notable inventor based in Okemos, Michigan. He has made significant contributions to the field of bioreactor technology and electrochemical methods for energy conversion. With a total of two patents to his name, Zeikus has demonstrated a commitment to advancing scientific knowledge and practical applications.
Latest Patents
One of his latest patents is the Pneumatic Bioreactor. This invention includes a vessel containing a fluid to be mixed and at least one mixing device driven by gas pressure. A first embodiment features 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 with electromagnets in the vessel acting upon magnetic material in the impeller or its guides. Another embodiment utilizes floating pistons to mix the fluid, pushing it through a mixing plate with one or more apertures. Additionally, a third embodiment incorporates 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.
His second patent involves electrochemical methods for generating a biological proton motive force and pyridine nucleotide cofactor regeneration. This patent discloses methods using neutral red to mediate the interconversion of chemical and electrical energy. Electrically reduced neutral red has been found to promote cell growth and the formation of reduced products by reversibly increasing the ratio of the reduced to oxidized forms of NAD(H) or NADP(H). This compound can serve as the sole source of reducing power for microbial cell growth. Furthermore, neutral red facilitates the conversion of chemical energy to electrical energy by promoting the transfer of electrons from microbial reducing power to a fuel cell cathode.
Career Highlights
Gregory Zeikus has had a distinguished career, working with prominent institutions such as Michigan State University and Prs Biotech, Inc. His work has significantly impacted the fields of biotechnology and energy conversion.
Collaborations
Throughout his career, Zeikus has collaborated with notable colleagues, including Hyoun S. Shin and Mahendra K. Jain. These collaborations have further enriched his research and innovations.
Conclusion
Gregory Zeikus is