Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878763 | Double hinge zipper construction | — | 1989-11-07 |
| 4876842 | Method of and apparatus for packaging product masses in a form, fill and seal machine | — | 1989-10-31 |
| 4859083 | Bag chain attached to computer paper | Robert S. Nocek | 1989-08-22 |
| 4850178 | Device for opening a double link bag chain | — | 1989-07-25 |
| 4848928 | Package with reclosable fin and method | — | 1989-07-18 |
| 4848064 | Zipper bag filling machine and method | Peter Lems, Robert S. Nocek, Thomas P. Scanlon | 1989-07-18 |
| 4840611 | Gusseted bags with reclosure features | Donald L. Van Erden | 1989-06-20 |
| 4832505 | Tamper evident link bags | Per Bentsen | 1989-05-23 |
| 4812074 | Apparatus for making bag material | Robert S. Nocek | 1989-03-14 |
| 4807300 | Plastic zipper bag with anchor-socket attachment arrangement | Per Bentsen | 1989-02-21 |