Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6376797 | Laser cutting of semiconductor materials | Bernhard P. Piwczyk | 2002-04-23 |
| 5558712 | Contoured inner after-heater shield for reducing stress in growing crystalline bodies | — | 1996-09-24 |
| 4443411 | Apparatus for controlling the atmosphere surrounding a crystal growth zone | — | 1984-04-17 |
| 4430305 | Displaced capillary dies | Bruce Chalmers, Thomas Surek | 1984-02-07 |
| 4415401 | Control of atmosphere surrounding crystal growth zone | Fritz Wald | 1983-11-15 |
| 4353757 | Displaced capillary dies | Bruce Chalmers, Thomas Surek | 1982-10-12 |