Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773516 | Process and solution for providing a conversion coating on a metallic surface I | Klaus Wittel, Anthony Ewart Hughes, Karen Joy Hammon Nelson | 2004-08-10 |
| 6755917 | Process and solution for providing a conversion coating on a metallic surface II | Klaus Wittel, Anthony Ewart Hughes, Karen Joy Hammon Nelson | 2004-06-29 |