Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8931898 | Non-progressive corridor bi-focal lens with substantially tangent boundary of near and distant visual fields | Michael Walach | 2015-01-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8931898 | Non-progressive corridor bi-focal lens with substantially tangent boundary of near and distant visual fields | Michael Walach | 2015-01-13 |