Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7236243 | Hand-held spectrometer | Marian Martin Szczesniak, Barry James Smith, John F. Matsumoto, James Ferguson | 2007-06-26 |
| 6147350 | Spectroscopic residue detection system and method | Marian Martin Szczesniak | 2000-11-14 |