Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784180 | Sanitary mixing valve assembly | — | 1988-11-15 |
| 4694512 | Plumbing mixing circuit control apparatus for a combination set | Werner Knebel | 1987-09-22 |
| 4674678 | Mixing fixture for plumbing | Werner Knebel | 1987-06-23 |