Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889247 | Plastic container, preform for and method of making same | Suppayan M. Krishnakumar | 1989-12-26 |
| 4863046 | Hot fill container | Suppayan M. Krishnakumar, David P. Piccioli | 1989-09-05 |
| 4847129 | Multilayer preform for hot fill containers | David P. Piccioli, Suppayan M. Krishnakumar | 1989-07-11 |