Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5426143 | Thermochromic infrared dyes | Paulus Pieter De Wit, Erwin W. P. Erdhuisen, John Griffiths | 1995-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5426143 | Thermochromic infrared dyes | Paulus Pieter De Wit, Erwin W. P. Erdhuisen, John Griffiths | 1995-06-20 |