Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5377458 | Pressure balancing a closed ecological system | — | 1995-01-03 |
| 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 |
| 5177921 | Low leakage glazing system | — | 1993-01-12 |
| 5138820 | Low leakage glazing system for space frame structures | Peter J. Pearce, E. Leonard Pate, Roger A. Conrad | 1992-08-18 |