Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813575 | Non-refillable valve for pressurized containers | — | 1989-03-21 |
| 4688694 | Safety means for pressurized gas containers | Kenneth L. Kirk | 1987-08-25 |
| 4573611 | Non-refillable valve | — | 1986-03-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813575 | Non-refillable valve for pressurized containers | — | 1989-03-21 |
| 4688694 | Safety means for pressurized gas containers | Kenneth L. Kirk | 1987-08-25 |
| 4573611 | Non-refillable valve | — | 1986-03-04 |