Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5174608 | Transparent tamperproof seal for the protection of signed texts and documents | — | 1992-12-29 |
| 5033774 | Plastic safety case for ensuring the authenticity and condition of a gold coin, precious stone, pearl or the like | — | 1991-07-23 |
| 5020831 | Imprinted product with tamperproof seal method of producing product | — | 1991-06-04 |
| 4400249 | Partial synthesis process for preparing (+) -vincamine and related indolic alkaloids | — | 1983-08-23 |