Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149859 | Close only expansive gate valve | Loc Gia Hoang | 2021-10-19 |
| 9835258 | Close only expansive gate valve | Loc Gia Hoang | 2017-12-05 |
| 9353871 | Close only expansive gate valve | Loc Gia Hoang | 2016-05-31 |