Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10934717 | Underroof collar for use in water-proofing the joint between a roof structure and a window frame, a packed underroof collar, and a method of providing an underroof collar | Bent Atzen, Lars Erdmann | 2021-03-02 |