Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315043 | Coating of granulated organic dyes with an epoxy | Joseph E. G. Couture | 1982-02-09 |
| 4225368 | Coating of granulated organic dyes with an epoxy | Joseph E. G. Couture | 1980-09-30 |