Acceptable grounds for opposition include:
- A similar or identical mark was registered earlier by another person or company
- A well-known mark was copied or if it looks almost the same as a notorious mark
- The mark was registered in the agent’s name or a representative of the owner of the mark
- Rights against trade names are violated
- Absolute grounds such as deceptiveness, descriptiveness, non-distinctiveness, etc.
- Violation of prior rights such as rights to a copyrighted material, personal name, patented design, etc.