From Ideas to Rights,
We Protect Your Innovation.
With creativity and legal expertise, we provide comprehensive protection for your intellectual property in Korea — including patents, utility models, designs, and trademarks.
Driven by Passion. Inspired by Innovation
At Doochang Patent Law Office, we transform your ideas into powerful legal rights—safeguarding innovation and shaping a future of competitive excellence.
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Patent Application
Experience the value of patent services where inventive creativity meets strategic protection — only at Doochang Patent.
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Design Protection
Where design creation meets legal protection — safeguard the value of your design with Doochang Patent.
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Trademark Registration
When brand identity meets exclusive rights — partner with Doochang Patent.
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International Applications
The intersection of global expansion and international protection — led by Doochang Patent.
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IP Dispute & Trial Representation
Where legal expertise and practical experience converge — meet Doochang Patent in your corner.
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IP Consulting
Strategic IP consulting for idea commercialization — start with Doochang Patent.
Where Professionalism Meets Creativity
Welcome to the World of Intellectual Property
From individual inventors to global corporations, Duchang Patent stands with every journey of innovation and protection.
IP Filing Expertise in Korea
- Secure and protect your invention with expert guidance.
- Protect the commercial value of your design.
- Establish exclusive rights to your brand
Court & Patent Trial Response Team
- Proven Experience in Domestic Patent Disputes.
- Led by Former Judges and Patent Attorneys.
- Tailored Strategies by Industry and Case Type.
“The patent system added the fuel of interest to the fire of genius, in the discovery and production of new and useful things.””
Abraham Lincoln