Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5471109 | Method and apparatus for preventing reverse flow in air or gas cooled lamps | Robert Sweetman | 1995-11-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5471109 | Method and apparatus for preventing reverse flow in air or gas cooled lamps | Robert Sweetman | 1995-11-28 |