Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10751655 | Swimming pool filter cartridge washer | — | 2020-08-25 |
| 7799296 | Method of producing a nickel salt solution | Michael A. Fetcenko, Cristian Fierro, Avram Zallen | 2010-09-21 |
| 7364717 | Process for converting nickel to nickel sulfate | Cristian Fierro, Gabriel E. Benet, Avram Zallen, Michael A. Fetcenko | 2008-04-29 |
| 7097933 | Catalyst for fuel cell oxygen electrodes | Stanford R. Ovshinsky, Cristian Fierro, Benjamin Reichman, William Mays, James Strebe +2 more | 2006-08-29 |