Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277934 | Method for protecting a graphite chuck for a starter filament in the manufacture of polycrystalline silicon | Michael H. Gilbert, Sr., John B. Hedge | 1994-01-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277934 | Method for protecting a graphite chuck for a starter filament in the manufacture of polycrystalline silicon | Michael H. Gilbert, Sr., John B. Hedge | 1994-01-11 |