Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10583377 | Rain water filter | Arnold Denk, Jan Maurer, Alexander Schweizer, Friedrich W. Poerschke | 2020-03-10 |
| 4691482 | Roof construction | Horst D. Heinemann | 1987-09-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10583377 | Rain water filter | Arnold Denk, Jan Maurer, Alexander Schweizer, Friedrich W. Poerschke | 2020-03-10 |
| 4691482 | Roof construction | Horst D. Heinemann | 1987-09-08 |