Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5951727 | Pollen filter | Manfred Spies, Heike Rademacher, Zygmut Kozaczka | 1999-09-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5951727 | Pollen filter | Manfred Spies, Heike Rademacher, Zygmut Kozaczka | 1999-09-14 |