Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8223338 | Optical path length sensor and method for optimal absorbance measurements | Charles W. Robertson, Jr., Damian W. Ashmead | 2012-07-17 |
| 7872749 | Instrument for making optical measurements on multiple samples retained by surface tension | Charles W. Robertson, Jr., Paul S. Zdinak | 2011-01-18 |
| 7623225 | Photometer with modular light emitter | Charles W. Robertson, Jr., Joel B. Hansen, Dale Lee Heintzelman, Paul S. Zdinak, Damian W. Ashmead +1 more | 2009-11-24 |