Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7258006 | Sight gauge shield and method | Raymond P. Kawolics | 2007-08-21 |
| 6207333 | Mask with attenuating phase-shift and opaque regions | William J. Adair, James J. Colelli, Erik Puttlitz, Arthur C. Winslow | 2001-03-27 |