Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9598766 | Vessel with filter | Charles Michael Birtcher, Xinjian Lei, Sergei Vladimirovich Ivanov | 2017-03-21 |
| 9550260 | Ultrasonic liquid level sensing systems | Charles Michael Birtcher | 2017-01-24 |