Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5731443 | Liquid phthalic anhydride recovery process using a rectification tower | James J. Baiel | 1998-03-24 |
| 5508443 | Liquid phthalic anhydride recovery process | — | 1996-04-16 |
| 5214157 | Process for the disposal of phthalic anhydride decomposer vapors | Francis J. Healy | 1993-05-25 |
| 4860459 | Bubble level | — | 1989-08-29 |