Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374864 | Electron multiplier with increased-area channel | Raymond L. Roy, Peter Graves | 1994-12-20 |
| 5030878 | Electron multiplier with replaceable rear section | Raymond L. Roy, Peter Graves, Jonathan W. Amy, George C. Stafford | 1991-07-09 |
| 4357105 | Blood diagnostic spectrophotometer | — | 1982-11-02 |