Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387170 | Heat stable orange laked monoazo pigment | Alan Gray, Dorothy-Grace Manarang-Pena | 2002-05-14 |
| 6150509 | Water-insoluble yellow monoazo pigment | Alan Gray, Dorothy-Grace Manarang | 2000-11-21 |