Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464879 | Treatment of phosphatizing waste water | Peter Kuhm, Jens Vier | 2002-10-15 |
| 6447662 | Process for phosphatizing, rerinsing and cathodic electro-dipcoating | Bernd Schenzle, Peter Kuhm, Winfried Wichelhaus, Helmut Endres | 2002-09-10 |
| 6395105 | Phosphating process with a metalliferous re-rinsing stage | Winfried Wichelhaus, Helmut Endres, Karl-Heinz Gottwald, Horst-Dieter Speckmann | 2002-05-28 |
| 6379474 | Phosphating method accelerated by N-oxides | Bernd Mayer, Peter Kuhm, Pietro Balboni, Markus Senner, Horst-Dieter Speckmann +2 more | 2002-04-30 |