Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11433181 | Variable flow rate control device | Christopher S. Nelson, Andrew Schaffer | 2022-09-06 |
| 11419979 | Variable fluid flow rate control device | Andrew Schaffer | 2022-08-23 |