Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5959726 | Modulation transfer function test compensation for test pattern duty cycle | James K. Riley, William E. Ortyn, Yuhui Cheng, Wayne A. Biggs | 1999-09-28 |
| 5883982 | Astigmatism measurement apparatus and method based on a focal plane separation measurement | James K. Riley, Keith L. Frost, William C. Lindow, Kim Hansen, James Stephanick | 1999-03-16 |
| 5862265 | Separation apparatus and method for measuring focal plane | James K. Riley, Keith L. Frost, William C. Lindow, Kim Hansen, James Stephanick | 1999-01-19 |
| 5642441 | Separation apparatus and method for measuring focal plane | James K. Riley, Keith L. Frost, William C. Lindow, Kim Hansen, James Stephanick | 1997-06-24 |