Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10872731 | Aluminum oxide layer on anode foil for aluminum electrolytic capacitor | Ralph Jason Hemphill | 2020-12-22 |
| 10707024 | Method of forming an aluminum oxide layer on anode foil for aluminum electrolytic capacitor | Ralph Jason Hemphill | 2020-07-07 |
| 10603694 | Sonicating bath for anode foils | Ralph Jason Hemphill, David R. Bowen, Xiaofei Jiang, Troy L. McCurry | 2020-03-31 |