HODOGAYA CHEMICAL CO LTD PATENTS FACING OPPOSITIONS
Top patents of HODOGAYA CHEMICAL CO LTD facing oppositions at the European Patent Office (EPO)
| Patent Number | Grant Date | Patent Title | Expected Expiration Date | Facing Oppositions | Activity Alert |
|---|---|---|---|---|---|
| EP3616680B1 | 17 Mar, 2021 | Compound Containing Basic Dye And Amino Acid, Hair Dying Dye, And Hair Dying Composition | Aug, 2039 | 1 |