Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7594728 | Adjustable device for vision testing and therapy | Sigrid Kenkel, Michelle Boster, Patrick J. Paul | 2009-09-29 |
| 7359026 | Liquid crystal display projector | Paul E. Bullwinkel, Keith Kopp | 2008-04-15 |