Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822198 | Transformative elevator display system | Philip Hettema, Susan Spence, Arthur Derby Ahlstone | 2020-11-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822198 | Transformative elevator display system | Philip Hettema, Susan Spence, Arthur Derby Ahlstone | 2020-11-03 |