Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837182 | Method of producing sheets of crystalline material | John C. C. Fan, Robert W. McClelland | 1989-06-06 |
| 4816420 | Method of producing tandem solar cell devices from sheets of crystalline material | John C. C. Fan, Robert W. McClelland | 1989-03-28 |