Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6682585 | Refining nonferrous metals and alloys with gases having reduced global warming potential | John Peter Hobbs, James Francis Heffron | 2004-01-27 |
| 6675622 | Process and roll stand for cold rolling of a metal strip | Guido Plicht, Harald Schillak, John Herbert Frey | 2004-01-13 |