Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6555896 | Etch stop for use in etching of silicon oxide | David A. Cathey, J. Brett Rolfson, Valerie A. Ward | 2003-04-29 |
| 6232218 | Etch stop for use in etching of silicon oxide | David A. Cathey, J. Brett Rolfson, Valerie A. Ward | 2001-05-15 |
| 6222257 | Etch stop for use in etching of silicon oxide | David A. Cathey, J. Brett Rolfson, Valerie A. Ward | 2001-04-24 |
| 6013943 | Etch stop for use in etching of silicon oxide | David A. Cathey, J. Brett Rolfson, Valerie A. Ward | 2000-01-11 |
| 6004875 | Etch stop for use in etching of silicon oxide | David A. Cathey, J. Brett Rolfson, Valerie A. Ward | 1999-12-21 |