Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6197872 | Thin wall panels | Herbert Naarmann, Graham E. McKee, Alfred Pirker, Hans-Josef Sterzel, Franz Brandstetter +3 more | 2001-03-06 |
| 6103813 | Covering grid plates for ventilation openings | Herbert Naarmann, Graham Edmund Mc Kee, Alfred Pirker, Hans-Josef Sterzel, Franz Brandstetter +3 more | 2000-08-15 |
| 6063854 | Moldings for sanitary and bathroom fittings | Herbert Naarmann, Graham Edmund Mc Kee, Alfred Pirker, Hans-Josef Sterzel, Franz Brandstetter +3 more | 2000-05-16 |
| 6063868 | Housings for security devices | Herbert Naarmann, Graham E. McKee, Alfred Pirker, Hans-Josef Sterzel, Franz Brandstetter +3 more | 2000-05-16 |