Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10583377 | Rain water filter | Arnold Denk, Alfred Jost, Alexander Schweizer, Friedrich W. Poerschke | 2020-03-10 |
| 9732526 | System of components which, assembled, form a rainwater separator for a downpipe | Arnold Denk | 2017-08-15 |
| D726290 | Rain water filter collector for a downspout | Arnold Denk | 2015-04-07 |