Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924797 | Manually tearable closure seal device for envelopes | — | 1999-07-20 |
| 5765885 | Security seal | — | 1998-06-16 |
| 5600978 | Device for the closure of bags or the like and security seal | — | 1997-02-11 |
| 5542724 | Sealing system, security seal and injection moulding system for manufacturing a sealing system | — | 1996-08-06 |
| 5489034 | Security seal for sealing the end of a tubular member | — | 1996-02-06 |
| 5318418 | Plastic injection mold with serial numbering | — | 1994-06-07 |
| 4983047 | Envelope with closure and seal device | — | 1991-01-08 |
| 4254933 | Mold for injection molding | — | 1981-03-10 |