Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942355 | Method of fabricating a phase-shifting semiconductor photomask | J. Brett Rolfson | 1999-08-24 |
| 5667918 | Method of lithography using reticle pattern blinders | J. Brett Rolfson | 1997-09-16 |