Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10304972 | Solar cell with silicon oxynitride dielectric layer | David D. Smith | 2019-05-28 |
| 9018516 | Solar cell with silicon oxynitride dielectric layer | David D. Smith | 2015-04-28 |
| 4890432 | Roof tile | — | 1990-01-02 |