Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6562148 | Pretreatment of aluminum surfaces with chrome-free solutions | Thomas Wendel, Klaus Bittner, Peter Muller | 2003-05-13 |
HW
Hardy Wietzoreck
Chemetall Gmbh: 1 patents #4 of 11Top 40%
Overall (2003): #215,359 of 273,478Top 80%
1
Patents 2003