Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12239862 | Ventilating firestop | Ruth Astrid Strøm | 2025-03-04 |
| 7540118 | Fireblocking device | — | 2009-06-02 |
| 7326852 | String device | — | 2008-02-05 |
| 7078631 | Spring scale | Dag Thorstein Wang, Ralph William Bernstein, Eivind Lund | 2006-07-18 |