SERVICE
SERVICE
Borderless IP Support
Global Intellectual Property Services
At Tass Meister IP Law Firm, international work is at the heart of what we do—accounting for 70–80% of our practice.
Whether helping Japanese companies expand abroad or assisting foreign businesses enter Japan,
we ensure that intellectual property keeps pace with our clients’ cross-border ambitions.
PCT applications, national phase entries, direct filings in the U.S., Europe, China, and across Asia, foreign office action responses, Madrid Protocol trademark filings—this is the fabric of our everyday work.
We bring deep knowledge of each country’s legal framework and prosecution practices,
working hand in hand with local associates to secure the strongest possible protection for our clients.
Borderless IP Support
Global Intellectual Property Services
At Tass Meister IP Law Firm, international work is at the heart of what we do—accounting for 70–80% of our practice.
Whether helping Japanese companies expand abroad or assisting foreign businesses enter Japan,
we ensure that intellectual property keeps pace with our clients’ cross-border ambitions.
PCT applications, national phase entries, direct filings in the U.S., Europe, China, and across Asia, foreign office action responses, Madrid Protocol trademark filings—this is the fabric of our everyday work.
We bring deep knowledge of each country’s legal framework and prosecution practices,
working hand in hand with local associates to secure the strongest possible protection for our clients.
Global Capabilities
Global Capabilities

Worldwide Coverage
Through an established network of trusted local associates, we handle filings and prosecution before patent and trademark offices around the globe.
From the U.S., Europe, and China to ASEAN nations, India, the Middle East, South America, and Africa—we go wherever our clients’ business takes them.
We also welcome inbound work, representing foreign companies seeking IP protection in Japan. Ours is a truly two-way global practice.
Worldwide Coverage
Through an established network of trusted local associates, we handle filings and prosecution before patent and trademark offices around the globe.
From the U.S., Europe, and China to ASEAN nations, India, the Middle East, South America, and Africa—we go wherever our clients’ business takes them.
We also welcome inbound work, representing foreign companies seeking IP protection in Japan. Ours is a truly two-way global practice.

Working with Local Associates
Success in foreign IP requires more than paperwork—it demands real insight into each jurisdiction’s legal landscape and examination culture.
Continuation strategies and claim drafting in the U.S. Divisionals and oppositions in Europe. Prosecution realities and enforcement practicalities in China. Regulatory nuances in emerging markets. These are the complexities we navigate every day.
Rather than simply relaying documents, we take the time to understand our clients’ technology and business goals, then craft filing strategies and prosecution approaches tailored to each country’s system.
That’s what foreign IP practice means to us.
Working with Local Associates
Success in foreign IP requires more than paperwork—it demands real insight into each jurisdiction’s legal landscape and examination culture.
Continuation strategies and claim drafting in the U.S. Divisionals and oppositions in Europe. Prosecution realities and enforcement practicalities in China. Regulatory nuances in emerging markets. These are the complexities we navigate every day.
Rather than simply relaying documents, we take the time to understand our clients’ technology and business goals, then craft filing strategies and prosecution approaches tailored to each country’s system.
That’s what foreign IP practice means to us.
Services Overview
Services Overview
◆ Foreign Filing Services
International IP work is our specialty. Drawing on extensive experience with the legal systems and examination practices of jurisdictions worldwide, we partner with local associates to support our clients’ global growth.
• PCT international applications and national phase entries
• Foreign patent applications (U.S., Europe/EPO, China, South Korea, Taiwan, Southeast Asia, India, and beyond)
• Foreign prosecution (strategic responses to office actions, close coordination with local associates)
• International trademark applications under the Madrid Protocol
• Direct trademark filings abroad
• Foreign appeals and trials (appeals against rejections, invalidation proceedings, oppositions, etc.)
◆ Domestic Filing Services
• Patent applications
• Utility model applications
• Trademark applications
• Prosecution (responses to office actions and rejections)
• Appeals and trials (appeals against rejections, invalidation proceedings, oppositions, appeals to the IP High Court, etc.)
◆ Search Services
• Prior art searches (patents and trademarks)
• Freedom-to-operate (FTO) and clearance searches
• Invalidity searches
• Trademark searches (comprehensive similarity searches, design searches, identical mark screenings)
• Foreign searches (patents and trademarks across jurisdictions)
• Right status searches and file wrapper reviews
• Patent landscape analysis (technology trend studies, patent mapping)
◆ Rights Utilization & Management
• Annuity and renewal management (patents, trademarks, and utility models—domestic and foreign)
• Licensing, assignment, and joint development agreements
• Legal opinions
• Cease-and-desist responses and litigation support
• IP strategy consulting
◆ Foreign Filing Services
International IP work is our specialty. Drawing on extensive experience with the legal systems and examination practices of jurisdictions worldwide, we partner with local associates to support our clients’ global growth.
• PCT international applications and national phase entries
• Foreign patent applications (U.S., Europe/EPO, China, South Korea, Taiwan, Southeast Asia, India, and beyond)
• Foreign prosecution (strategic responses to office actions, close coordination with local associates)
• International trademark applications under the Madrid Protocol
• Direct trademark filings abroad
• Foreign appeals and trials (appeals against rejections, invalidation proceedings, oppositions, etc.)
◆ Domestic Filing Services
• Patent applications
• Utility model applications
• Trademark applications
• Prosecution (responses to office actions and rejections)
• Appeals and trials (appeals against rejections, invalidation proceedings, oppositions, appeals to the IP High Court, etc.)
◆ Search Services
• Prior art searches (patents and trademarks)
• Freedom-to-operate (FTO) and clearance searches
• Invalidity searches
• Trademark searches (comprehensive similarity searches, design searches, identical mark screenings)
• Foreign searches (patents and trademarks across jurisdictions)
• Right status searches and file wrapper reviews
• Patent landscape analysis (technology trend studies, patent mapping)
◆ Rights Utilization & Management
• Annuity and renewal management (patents, trademarks, and utility models—domestic and foreign)
• Licensing, assignment, and joint development agreements
• Legal opinions
• Cease-and-desist responses and litigation support
• IP strategy consulting
If you are interested in our services or work style, please visit our recruitment page on the right.
If you are interested in our services or work style, please visit our recruitment page below。