Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851587 | Process for producing coated bismuth vanadate yellow pigments | Rudolf Hill | 1998-12-22 |
| 5837635 | Process for producing mixed oxide powders from deactivated denox catalysts | Jurgen Kischkewitz, Gunter Linde, Gunter Lailach, Kai Butje | 1998-11-17 |
| 5145804 | Enamel powder for electrostatic application | Werner Joseph | 1992-09-08 |
| 5075263 | Enamel frits for acid-resistant one-coat enamelling on unpickled steels | Werner Joseph | 1991-12-24 |
| 5013362 | Fluorine-free superopaque enamel frits | Werner Joseph | 1991-05-07 |
| 4970375 | High-temperature heating systems and a process for their production | Paul Zybell | 1990-11-13 |
| 4847218 | Enamel frits for sheet steel with improved bonding | Werner Joseph | 1989-07-11 |
| 4713530 | Heating element combined glass/enamel overcoat | Werner Joseph, Gerhard Trogel | 1987-12-15 |
| 4689271 | Coating for metallic substrates | Werner Joseph, Otto Krist | 1987-08-25 |
| 4659586 | Process for electrostatically spraying inorganic powders | Werner Joseph | 1987-04-21 |