Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9221003 | Filter | Klaus Schumann | 2015-12-29 |
| 8187352 | Filter | Klaus Schumann | 2012-05-29 |
| 5858039 | Cylindrical star-shaped filter bag and support cage | Klaus Schumann | 1999-01-12 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9221003 | Filter | Klaus Schumann | 2015-12-29 |
| 8187352 | Filter | Klaus Schumann | 2012-05-29 |
| 5858039 | Cylindrical star-shaped filter bag and support cage | Klaus Schumann | 1999-01-12 |