Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9417460 | Eyewear for reducing symptoms of computer vision syndrome | Joseph Croft, Matthew Michelsen | 2016-08-16 |
| 8342681 | Eyewear for reducing symptoms of computer vision syndrome | Joseph Croft, Matthew Michelsen | 2013-01-01 |
| 7976157 | Eyewear for reducing symptoms of computer vision syndrome | Joseph Croft, Matthew Michelsen | 2011-07-12 |
| 4391375 | Display card and assembly hanger | — | 1983-07-05 |