Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966617 | Process of manufacturing vitreous beads | — | 1990-10-30 |
| 4904292 | Spherulizing furnace and process of manufacturing vitreous beads | — | 1990-02-27 |
| 4894081 | Spherulizing furnace | — | 1990-01-16 |
| 4487620 | Method and apparatus for manufacturing rounded vitreous beads | — | 1984-12-11 |