| 11661671 |
Technique for controlling temperature uniformity in crystal growth apparatus |
Cody Riopel, Hui Zhang |
2023-05-30 |
| 10633759 |
Technique for controlling temperature uniformity in crystal growth apparatus |
Cody Riopel, Hui Zhang |
2020-04-28 |
| 9546434 |
High-temperature process improvements using helium under regulated pressure |
David B. Joyce, John Brouillette, Daniel P. Betty, Ryan Philpott |
2017-01-17 |
| 8329133 |
Method and apparatus for refining metallurgical grade silicon to produce solar grade silicon |
David B. Joyce |
2012-12-11 |
| 8177910 |
System and method for crystal growing |
Chandra P. Khattak, David B. Joyce |
2012-05-15 |
| 7918936 |
System and method for crystal growing |
Chandra P. Khattak, David B. Joyce |
2011-04-05 |
| 7344596 |
System and method for crystal growing |
Chandra P. Khattak, David B. Joyce |
2008-03-18 |
| 6418921 |
Method and apparatus for cutting workpieces |
Maynard B. Smith, Chandra P. Khattak |
2002-07-16 |
| 6368403 |
Method and apparatus for purifying silicon |
Chandra P. Khattak, David B. Joyce |
2002-04-09 |
| 5972107 |
Method for purifying silicon |
Chandra P. Khattak |
1999-10-26 |
| 5842462 |
Method and apparatus to produce a radial cut profile |
Maynard B. Smith |
1998-12-01 |
| 5438973 |
Shaped blades |
Maynard B. Smith, Chandra P. Khattak |
1995-08-08 |
| 5394825 |
Method and apparatus for growing shaped crystals |
Chandra P. Khattak, Vladimir Gorbulev |
1995-03-07 |
| 4840699 |
Gallium arsenide crystal growth |
Chandra P. Khattak, Vernon White, John H. Wohlgemuth |
1989-06-20 |
| 4727852 |
Multi-wafer slicing with a fixed abrasive |
Chandra P. Khattak, Maynard B. Smith |
1988-03-01 |
| 4646710 |
Multi-wafer slicing with a fixed abrasive |
Chandra P. Khattak, Maynard B. Smith |
1987-03-03 |
| 4447085 |
Grapple assembly |
— |
1984-05-08 |
| 4384564 |
Process of forming a plated wirepack with abrasive particles only in the cutting surface with a controlled kerf |
Maynard B. Smith, Chandra P. Khattak |
1983-05-24 |
| 4349178 |
Wire blades |
— |
1982-09-14 |
| 4287869 |
Charging system for cutting blade |
— |
1981-09-08 |
| 4256079 |
Wire blades |
— |
1981-03-17 |
| 4256530 |
Crystal growing |
Chandra P. Khattak |
1981-03-17 |
| 4218418 |
Processes of casting an ingot and making a silica container |
Chandra P. Khattak |
1980-08-19 |
| 4187828 |
Cutting |
— |
1980-02-12 |