| Patent Number | Title | Applicant | Opposition Date |
|---|---|---|---|
| EP3239069 | One-Way Valve | SONOCO DEVELOPMENT, INC. | Apr 25, 2019 |
| Patent Number | Grant Date | Title | Total Oppositions |
|---|---|---|---|
| EP3735506 | Nov 23, 2022 | Barrier Window Spacer With Enhanced Durability | 1 |
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