Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8876293 | Macular pigment measurement device with data quality indexing feature | Dennis L. Gierhart, Malcolm Stuart Grover | 2014-11-04 |
| 5723769 | Diffusion cell | Patrick Hannon, Bradley Mark Patterson, Michael George Trefry | 1998-03-03 |