Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305849 | Insulating container for water, beverages, and soups | Ajit Kumar Das, Tsuneo Nakazato | 1990-02-06 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305849 | Insulating container for water, beverages, and soups | Ajit Kumar Das, Tsuneo Nakazato | 1990-02-06 |