Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614448 | Method for the manufacture of porcelain | — | 1997-03-25 |
| 5455210 | Porcelain, porcelain batch composition and method for the manufacture of the porcelain | — | 1995-10-03 |
| 4521356 | Decorative flatware handles and process for their preparation | Hartmut Keller, Axel Krauth | 1985-06-04 |