Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5056930 | Self-sealing specimen pouch assembly | — | 1991-10-15 |
| 4510621 | Self-sealing pouch for forming adhesive-to-adhesive seal | Dennis A. Sak | 1985-04-09 |
| 4509196 | Tamper-indicating self-sealing pouch | Dennis A. Sak, Stanley Manne | 1985-04-02 |