Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6060428 | Heat-sensitive chromogenic system | John C. H. Chang, Donald J. Hoffmann, Ronald R. Garrison | 2000-05-09 | $6,175,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6060428 | Heat-sensitive chromogenic system | John C. H. Chang, Donald J. Hoffmann, Ronald R. Garrison | 2000-05-09 | $6,175,000 |