We are pleased to announce that the Japanese version of the website for our partner office in China has been uploaded. Please click here.
Recent Posts
- Managing Partner Felix Einsel has been named to the IAM Strategy 300: The World’s Leading IP Strategists 2024. October 7, 2025
- China’s First “5-Year Extension” Case Under the Patent Term Compensation System July 18, 2025
- Sonderhoff & Einsel Law and Patent Office Selected as IAM 1000 Recommended Firm 2025 July 10, 2025
- Summary of Measures on Administrative Adjudication and Mediation of Patent Disputes in China March 24, 2025
- Explanation of the main Points of the Amended Implementing Regulations of the Patent Law of the People’s Republic of China January 19, 2024
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Sonderhoff & Einsel Patent Office
Shin Marunouchi Center Bldg. 18th Floor
1-6-2 Marunouchi, Chiyoda-ku
Tokyo 100-0005
Tel +81-3-5220-6500
Fax +81-3-5220-6556 (G3)
Contact us by Email
Inquiries regarding Patents & Utility Models patent@se1910.com
Inquiries regarding Trademarks
trademark@se1910.com
Inquiries regarding Designs
trademark@se1910.com
