Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6143143 | Masking means and cleaning techniques for surfaces of substrates | John Michael Walls, Alaric Graham Spencer, Norman Henry White | 2000-11-07 |
| 5146088 | Method and apparatus for surface analysis | David Kingham | 1992-09-08 |