Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351879 | Paper food container having a bottom section formed with a flange | Richard C. H. Chang | 1994-10-04 |
| 5326017 | Paper container with multiple compartments partitioned by walls in different heights | Richard C. H. Chang | 1994-07-05 |