Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8434511 | Retractable and expandable water cooled valve gate useful for sealing a hot processing chamber | Dick S. Williams | 2013-05-07 |
| 6503322 | Electrical resistance heater and method for crystal growing apparatus | Richard G. Schrenker | 2003-01-07 |
| 6093913 | Electrical heater for crystal growth apparatus with upper sections producing increased heating power compared to lower sections | Richard G. Schrenker | 2000-07-25 |
| 6053974 | Heat shield for crystal puller | Lee William Ferry | 2000-04-25 |
| 5942032 | Heat shield assembly and method of growing vacancy rich single crystal silicon | Kyong-Min Kim, Lee William Ferry, Robert J. Braun, Srdjan Ilic, Mauro Diodà +3 more | 1999-08-24 |
| 5922127 | Heat shield for crystal puller | Lee William Ferry | 1999-07-13 |
| 5762491 | Solid material delivery system for a furnace | Dick S. Williams | 1998-06-09 |