Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11661929 | Suction valve apparatus and method of using same | John H. Campbell | 2023-05-30 |
| D968599 | Suction valve switch | John H. Campbell | 2022-11-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11661929 | Suction valve apparatus and method of using same | John H. Campbell | 2023-05-30 |
| D968599 | Suction valve switch | John H. Campbell | 2022-11-01 |