About Us

Trusted Partner. True Protection.

Domnern Somgiat & Boonma (DS&B) is a premier Intellectual Property (IP) law firm in Thailand, providing strategic legal solutions to international businesses for over 75 years. Established in 1947, DS&B has built a strong reputation for delivering effective, business-focused IP protection across Thailand and neighboring countries, including Cambodia, Laos, Myanmar, and Vietnam through trusted local partnerships.


Comprehensive IP Services for Global Businesses

At DS&B, we understand the challenges that foreign companies face when navigating Thailand’s IP landscape. Our firm offers end-to-end IP services, ensuring that your intellectual assets remain protected and enforceable.


Patent Protection

DS&B is widely recognized as Thailand’s top-filer for patent applications by foreign companies. Our patent attorneys include scientists and engineers with expertise in chemistry, biochemistry, pharmaceuticals, petrochemicals, and engineering, allowing us to provide technically sound and commercially viable patent strategies. We assist clients with patent drafting, prosecution, oppositions, portfolio management, and enforcement.


Trademark Protection & Brand Enforcement

DS&B represents one-third of the world’s top 100 brands, helping companies register, maintain, and defend their trademarks in Thailand and beyond. Our services include trademark clearance searches, registration, oppositions, cancellations, and enforcement actions against counterfeiters and infringers.


IP Enforcement & Anti-Counterfeiting

We take aggressive action against infringers through police raids, Customs seizures, market sweeps, and litigation. Our enforcement team works closely with Thai authorities to combat counterfeiting and safeguard brand reputation, ensuring that IP rights translate into real-world protection.


Commercialization of IP Assets

Beyond protection and enforcement, DS&B helps companies maximize the value of their intellectual assets. We assist in licensing, technology transfers, franchise agreements, and commercial transactions, ensuring that IP strategies align with business goals.


Trusted by Global Leaders, Recognized by Industry Experts

Our commitment to high-quality service, strategic foresight, and client-focused solutions has earned us top-tier rankings from IP Stars, WTR1000, IAM1000, Chambers & Partners, Legal500, Asia IP, and Asia Business Law Journal.


At DS&B, we don’t just register IP—we ensure it works for your business. Whether you are expanding into Thailand or strengthening your existing IP portfolio, we are your trusted partner for true protection.