A divisional U.S. patent application for a 'Proton Conducting Membrane Using a Solid Acid' was filed.
On May 2, 2002, the story of material innovation continued with the filing of a divisional U.S. patent application (No. 10/139,043) for proton conducting membranes, marking another stride in the commercialization of Haile's pioneering research.
This filing highlighted the significance of Haile’s contributions to the advancement of clean energy technologies. Her work on membranes that conduct protons with high efficiency brought solid acid fuel cells closer to real-world application, showcasing an interdisciplinary approach to overcoming technical barriers in renewable energy systems.