Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874517 | Filter arrangement with pleat distance piece | — | 1989-10-17 |
| 4755199 | Linear drive unit for cleaning filters | Michael Hoenigs | 1988-07-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874517 | Filter arrangement with pleat distance piece | — | 1989-10-17 |
| 4755199 | Linear drive unit for cleaning filters | Michael Hoenigs | 1988-07-05 |