Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6261384 | Process and aqueous solution for phosphatizing metallic surfaces | Peter Schubach | 2001-07-17 |
| 6168674 | Process of phosphatizing metal surfaces | Horst Gehmecker, Rüdiger Rein | 2001-01-02 |
| 5294266 | Process for a passivating postrinsing of conversion layers | Dieter Hauffe, Gerhard Muller, Horst Gehmecker, Werner Rausch, Peter Schubach +1 more | 1994-03-15 |
| 5135583 | Phosphating process | Horst Gehmecker, Dirk Meyer, Gerhard Muller | 1992-08-04 |
| 5087373 | Process for removing titanium and zirconium from aqueous solutions | Horst Gehmecker, Joachim Heitbaum | 1992-02-11 |