Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502012 | Fused ceramic beads | Daniel Urffer | 1996-03-26 |
| 4910174 | Thin ceramic articles obtained by fusing and casting in a mold a composition of the system Al.sub.2 O-ZrO.sub.2 -SiO.sub.2 -K.sub.2 O which have good mechanical strength and abrasion resistance properties | Daniel Urffer | 1990-03-20 |