Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890666 | Vapor barrier for use in the heat insulation of buildings | Hartwig Kunzel | 2005-05-10 |
| 6878455 | Vapor barrier for use in the heat insulation of buildings | Hartwig Kunzel | 2005-04-12 |