Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4950143 | Injection mold manifold arrangement | Suppayan M. Krishnakumar, Wayne N. Collette, Steven L. Schmidt | 1990-08-21 |
| 4936473 | Hot-fill product container with multi-layer wall structure | Suppayan M. Kirishnakumar | 1990-06-26 |
| 4923723 | Multi-layer preform, method of forming preform, and container formed from the preform | Wayne N. Collette, Suppayan M. Krishnakumar | 1990-05-08 |
| 4781954 | Preform with internal barrier and products made from the same | Suppayan M. Krishnakumar | 1988-11-01 |
| 4710118 | Apparatus for forming preforms with internal barrier | Suppayan M. Krishnakumar | 1987-12-01 |
| 4609516 | Method of forming laminated preforms | Suppayan M. Krishnakumar | 1986-09-02 |