Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5792283 | Nickel-free phosphating process | Wolf-Achim Roland, Karl-Heinz Gottwald, Karl-Dieter Brands, Bernd Mayer | 1998-08-11 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5792283 | Nickel-free phosphating process | Wolf-Achim Roland, Karl-Heinz Gottwald, Karl-Dieter Brands, Bernd Mayer | 1998-08-11 |