Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340307 | Bichromatic spectrophotometer with wavelength reversal | Richard D. Ratz | 1982-07-20 |
| 4310243 | Spectrophotometer with photomultiplier tube dark signal compensation | James R. Brown | 1982-01-12 |