Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237707 | Safety helmets | — | 1993-08-24 |
| 4276063 | Gas scrubbing liquids | Walter J. Lackey, John D. Sease | 1981-06-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237707 | Safety helmets | — | 1993-08-24 |
| 4276063 | Gas scrubbing liquids | Walter J. Lackey, John D. Sease | 1981-06-30 |