Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847231 | Mixed ruthenium catalyst | Michael Gratzel, Krishnan R. Thampi | 1989-07-11 |
| 4421617 | Photolytic production of hydrogen from water | Michael Gratzel | 1983-12-20 |
| 4394293 | Catalyst for the photolytic production of hydrogen from water | Michael Gratzel | 1983-07-19 |
| 4382846 | Simultaneous production of hydrogen and oxygen from water | Michael Gratzel, Kuppuswamy Kalyanasundaram, John D. Philp | 1983-05-10 |
| 4381978 | Photoelectrochemical system and a method of using the same | Michael Gratzel, Kuppuswamy Kalyanasundaram, John D. Philp | 1983-05-03 |