Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8997408 | Roof provided with an anchor system | — | 2015-04-07 |
| 8256183 | Safety feature for a roof | Anthonie Bernardus Berlee | 2012-09-04 |
| 8177027 | Safety measure for a pitched roof | Anthonie Bernardus Berlee | 2012-05-15 |