Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279081 | Pressure balancing a closed ecological system | — | 1994-01-18 |
| 5277877 | Room air purifier | Robert E. Jeffrey, R. Malone Hodges, Robert G. Hahn | 1994-01-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279081 | Pressure balancing a closed ecological system | — | 1994-01-18 |
| 5277877 | Room air purifier | Robert E. Jeffrey, R. Malone Hodges, Robert G. Hahn | 1994-01-11 |