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Dragon Sun Law Firm, P.C.


148 East Avenue, Suite 1F

Norwalk, CT 06851  USA




Intellectual property right
Current position:Home > services

Dragon Sun Law Firm's intellectual property services include patents, trademarks, copyrights and trade secrets. We also provide some services related to transactions and contracts on intellectual property.

Our highly specialized practice serves a diverse and expanding national and international client base. Our clients range from individuals to multibillion dollar private and publicly held corporations and universities.

Our service areas include mechanical, electronic, software, chemical and biological fields.







• client counseling and related opinions
• preparation and prosecution of new applications
• support for litigation counsels

• Preparation, prosecution and maintenance of domestic and international patents

• Review of patent portfolios and competitor patent activity
• Patent surveillance and policing procedures

• Clearance searches, investigations and opinions
      - Freedom-to-operate (FTO) and right-to-use (RTU) opinions
      - Patentability and white space analysis
      - Invalidity studies
      - Coordination of world wide opinions in the above

• Counseling on patent related issues:
      - The development of worldwide patent portfolios
      - Global patenting strategies
      - Monitoring and enforcing patent rights


Patent Practice


Beauty and cosmetics Oil and gas equipment
Cleaning tools and instruments Electronic equipment
Computers and Software Optical equipment
Financial industry Refrigeration equipment
Food and beverage equipment Semiconductor equipment
Furniture Surgery and medical equipment
Glass and porcelain communication Equipment
Hair care equipment Electric motor
biological monitor



• IP due diligence
• copyrights
• licensing/contracts
• trademarks


Trademark Service

• Non-litigation trademark business, including trademark registration, response and other services.
• Service countries include the United States, Britain, Asian and European countries, etc.