中文
Patents

Chang Tsi & Partners provides comprehensive patent services across all Asian jurisdictions, including filing, prosecution, maintenance and enforcement. Our team of qualified patent attorneys, all holding advanced degrees in engineering or science, is supported by technical specialists and legal professionals with deep expertise in Asian IP systems.

Frequently Asked Questions

  Methods of Treatments Extension of Patent Term Available Substantive Examination Computer Programs Patentable Surcharges Payable Languages
China Not Allowed No Yes No Yes English
Hong Kong Pharmaceutical products not patentable No Yes No Yes French & Arabic
Taiwan Yes Yes No No 3 Years Yes
Macao Yes Yes No No 3 Years Yes
Vietnam Yes Yes No No 3 Years Yes
Singapore Yes Yes No No 3 Years Yes
Japan Yes Yes No No 3 Years Yes
Philippines Yes Yes No No 3 Years Yes
South Korea Yes Yes No No 3 Years Yes
Thailand Yes Yes No No 3 Years Yes
United Arab Emirates Yes Yes No No 3 Years Yes
India Yes Yes No No 3 Years Yes
Pakistan Yes Yes No No 3 Years Yes
Sri Lanka Yes Yes No No 3 Years Yes
Kazakhstan Yes Yes No No 3 Years Yes
Uzbekistan Yes Yes No No 3 Years Yes
Iraq Yes Yes No No 3 Years Yes
Iran Yes Yes No No 3 Years Yes
North Korea Yes Yes No No 3 Years Yes
Nepal Yes Yes No No 3 Years Yes
Myanmar Yes Yes No No 3 Years Yes
Mongolia Yes Yes No No 3 Years Yes
Armenia Yes Yes No No 3 Years Yes
Georgia Yes Yes No No 3 Years Yes
Tajikistan Yes Yes No No 3 Years Yes
Kyrgyzstan Yes Yes No No 3 Years Yes
Republic of Maldives Yes Yes No No 3 Years Yes
Azerbaijan Yes Yes No No 3 Years Yes
Palestine Yes Yes No No 3 Years Yes
Laos Yes Yes No No 3 Years Yes
Brunei Yes Yes No No 3 Years Yes
Cambodia Yes Yes No No 3 Years Yes
Turkmenistan Yes Yes No No 3 Years Yes
Yemen Yes Yes No No 3 Years Yes
Jordan Yes Yes No No 3 Years Yes
Saudi Arabia Yes Yes No No 3 Years Yes
Qatar Yes Yes No No 3 Years Yes
Kuwait Yes Yes No No 3 Years Yes
Bahrain Yes Yes No No 3 Years Yes
Syria Yes Yes No No 3 Years Yes
Lebanon Yes Yes No No 3 Years Yes
Israel Yes Yes No No 3 Years Yes
Oman Yes Yes No No 3 Years Yes
Afghanistan Yes Yes No No 3 Years Yes
Malaysia Yes Yes No No 3 Years Yes
Bangladesh Yes Yes No No 3 Years Yes
Timor-Leste Yes Yes No No 3 Years Yes
Cyprus Yes Yes No No 3 Years Yes
Palestine Yes Yes No No 3 Years Yes
FAQs
Trade Mark Information
  • Q
    What trademark classification systems are used in Asian countries?
    A

    Most Asian countries adopt the Nice Classification system, with China, Japan and South Korea using the 11th edition. Some jurisdictions like India and Indonesia have additional sub-classifications. ASEAN members are working towards harmonizing their classification systems.

Patent Information
  • Q
    What types of trademarks are registrable in Asia?
    A

    Beyond conventional marks, China accepts sound marks, Japan allows position marks, while Singapore recognizes hologram marks. Non-traditional marks like color/scent marks face more challenges in developing Asian markets.

Registered Design Information
  • Q
    Are trademark assignments/licensing possible in Asia?
    A
    Yes, but recordal requirements differ. China/Thailand require recordal for enforcement. Japan/Singapore recognize unrecorded licenses. Tax implications vary - India imposes withholding tax on royalties.

What We Do

What We Do

As a leading intellectual property firm in Asia, we maintain specialized teams dedicated to managing patent applications throughout the region. These teams work closely with local IP offices and combine extensive technical knowledge with firsthand understanding of Asia's diverse patent landscapes.


Our patent practice covers all technical fields including:

 

  • Biotechnology and Pharmaceuticals
  • Chemical Engineering and Materials Science
  • Electrical, Electronic and Computer Technologies
  • Mechanical and Industrial Engineering
  • Green Energy and Environmental Technologies

 

From strategic patent portfolio management to complex litigation and commercialization, we deliver tailored solutions for protecting innovation across Asia's dynamic markets.

 

Key Features:

✓ Regional expertise in all Asian patent systems
✓ Technical specialists in every major field
✓ End-to-end patent lifecycle services
✓ Local presence with pan-Asian coordination

Our Team

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