Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828355 | Tubular eyeglass frame | Erik Lipson | 1989-05-09 |
| 4687306 | Tubular eyeglass frame | Erik Lipson | 1987-08-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828355 | Tubular eyeglass frame | Erik Lipson | 1989-05-09 |
| 4687306 | Tubular eyeglass frame | Erik Lipson | 1987-08-18 |