Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6168674 | Process of phosphatizing metal surfaces | Thomas Kolberg, Rüdiger Rein | 2001-01-02 |
| 5294266 | Process for a passivating postrinsing of conversion layers | Dieter Hauffe, Thomas Kolberg, Gerhard Muller, Werner Rausch, Peter Schubach +1 more | 1994-03-15 |
| 5268041 | Process for phosphating metal surfaces | Werner Rausch, Peter Schubach | 1993-12-07 |
| 5203930 | Process of forming phosphate coatings on metal surfaces | Georg Blumlhuber, Dieter Hauffe, Lothar Kaul, Thomas Nitschke, Werner Rausch +1 more | 1993-04-20 |
| 5135583 | Phosphating process | Thomas Kolberg, Dirk Meyer, Gerhard Muller | 1992-08-04 |
| 5087373 | Process for removing titanium and zirconium from aqueous solutions | Thomas Kolberg, Joachim Heitbaum | 1992-02-11 |
| 4950339 | Process of forming phosphate coatings on metals | Werner Rausch, Peter Jorns | 1990-08-21 |
| 4897128 | Process of determining the zinc content of phosphating baths | Heinz Dosch, Dieter Hauffe | 1990-01-30 |