Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8709565 | Pre-primed roofing membrane | Joseph John Kalwara, Bernard Obereiner, William B. Gorman | 2014-04-29 |
| 7510752 | Rolled membrane with compression spacers | — | 2009-03-31 |
| 6487830 | Reflective ballasted roofing system and method | — | 2002-12-03 |