Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343736 | Reusable mailing envelope with tear-strip opening device | — | 2002-02-05 |
| 5271553 | Re-mailable envelope with removable addressing sheet | — | 1993-12-21 |
| 5251810 | Re-mailable envelope with double side addressing window | — | 1993-10-12 |
| 5213258 | Resealable, returnable envelope | — | 1993-05-25 |
| 5203634 | Double guide strip opening device | — | 1993-04-20 |
| RE34024 | Tear strip opening device | — | 1992-08-11 |
| 5054618 | Sealed container with tear opening feature | — | 1991-10-08 |
| 5050741 | Container with wide tear strip opening feature | — | 1991-09-24 |
| 5035328 | Composite tear strip opening device with carrier strip feature | — | 1991-07-30 |
| 5035329 | Tear strip opening device | — | 1991-07-30 |
| 4936464 | Package in combination with a tear band device | — | 1990-06-26 |
| 4877139 | Container with an opening device comprising a guide strip and tear band | — | 1989-10-31 |
| 4795035 | Tear strip opening device | — | 1989-01-03 |