Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7645323 | Method and apparatus for improving the air quality within an enclosed space | Ilse A. Massenbauer-Strafe, Jürgen F. G. Strafe | 2010-01-12 |
| D541920 | Air treatment or purification apparatus | Ilse A. Massenbauer-Strafe | 2007-05-01 |