Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935127 | Pressure relief valve assembly with plastic, one-piece valve | John Lowsky, Jr., Scott Trierwiler | 1990-06-19 |
| 4820409 | Plastic pressure relief valve assembly | John Lowsky, Jr., Scott Trierwiler | 1989-04-11 |