Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688572 | Multi-layer containers | Richard C. Darr | 1997-11-18 |
| 5676267 | Multi-layer containers | Richard C. Darr | 1997-10-14 |
| 5674448 | Multi-layer containers | Richard C. Darr | 1997-10-07 |
| 5651933 | Method for making multi-layer preform used for plastic blow molding | Richard C. Darr | 1997-07-29 |
| 5647516 | Plastic blow molded bottle having bellows supported dispensing spout | William C. Young, Richard C. Darr | 1997-07-15 |
| 5645183 | Multi-layer containers | Richard C. Darr | 1997-07-08 |