Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10202704 | Side feed system for Czochralski growth of silicon ingots | William L. Luter, Verlin A. Lauher, Howard P. Zinschlag, Neil Middendorf, David Dubiel | 2019-02-12 |
| 9051659 | Silicon single crystal doped with gallium, indium, or aluminum | John P. DeLuca, Frank S. Delk, II, Bayard K. Johnson, William L. Luter, Neil Middendorf +2 more | 2015-06-09 |
| 8434511 | Retractable and expandable water cooled valve gate useful for sealing a hot processing chamber | William L. Luter | 2013-05-07 |
| 6609870 | Granular semiconductor material transport system and process | Howard VanBooven, Jimmy D. Kurz, Timothy J. Kulage | 2003-08-26 |
| 6435474 | Non-contaminating gas-tight valve for semiconductor applications | Treaf Andrus, Timothy J. Kulage, Ken Harrell | 2002-08-20 |
| 5935328 | Apparatus for use in crystal pulling | Carl F. Cherko, Harold W. Korb, Richard G. Schrenker | 1999-08-10 |
| 5762491 | Solid material delivery system for a furnace | William L. Luter | 1998-06-09 |
| 5582642 | Apparatus and method for adjusting the position of a pull wire of a crystal pulling machine | Harold W. Korb, Richard G. Schrenker, Verlin A. Lauher | 1996-12-10 |