Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7941922 | Method of manufacturing a lightweight valve | Holger Stark | 2011-05-17 |
| 7905468 | Lightweight valve | Holger Stark | 2011-03-15 |
| 7862007 | Lightweight valve | Holger Stark | 2011-01-04 |