Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902432 | Method of making a rolled roof vent | Michael S. Coulton, Geoffrey N. Ehrman, Kenneth L. Laubsch, Joseph DeMeo | 1999-05-11 |
| 5673521 | Rolled roof vent and method of making same | Michael S. Coulton, Geoffrey N. Ehrman, Kenneth L. Laubsch, Joseph DeMeo | 1997-10-07 |