Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867938 | Sequential injection molding process | Robert D. Schad | 1989-09-19 |
| 4863369 | Injection molding with shooting pots | Robert D. Schad | 1989-09-05 |
| 4863665 | Tri-injection of hollow articles | Robert D. Schad | 1989-09-05 |
| 4832593 | Large nozzle for hot runner mold | — | 1989-05-23 |
| 4814134 | Method and apparatus for automatically packaging articles in orderly fashion received from a multi-cavity high volume injection molding machine | — | 1989-03-21 |
| 4808101 | Tri-injection of hollow articles | Robert D. Schad | 1989-02-28 |