Unlike some jurisdictions, Taiwan does not allow series trademark application, and an application can only cover one trademark. Types of trademarksAccording to the Taiwan Trademark Act (Trademark Act), a trademark refers to any sign with distinctiveness, which may consist of words, devices, symbols, colours, three-dimensional shapes, motions, holograms, sounds or any combination thereof. The Trademark Act allows anyone to file an opposition against a trademark registration within three months of the date of registration. Use of a trademark by a licensee or sub-licensee can be deemed as trademark use by the trademark owner so as to safeguard the trademark registration from non-use revocation. For any company planning to enter Taiwan – or expand from Taiwan globally – trademark registration should be treated as a business priority aligned with product launch timelines.