Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6849855 | Method for marking and identifying objects coated with up-conversion material | David B. Chang | 2005-02-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6849855 | Method for marking and identifying objects coated with up-conversion material | David B. Chang | 2005-02-01 |