Welcome to DS&B

Established in 1947, Domnern Somgiat & Boonma is a specialized intellectual property law firm in Thailand located in the heart of Bangkok. It has six partners consisting of five attorneys-at-law admitted to the Thai Bar, namely Rutorn Nopakun, Kiat Poonsombudlert and Chakrapat Mongkolsit, Apiwatt Kongsoowan and Napisit Benjakuljirat (formerly Somporn Liampaw ) and a patent attorney with both legal and technical backgrounds, Prabjote Busdee. It has 133 full-time members (including the partners) and 76 outside experts from various technical fields with whom it consult on technical issues.



About 12% all the trademark applications filed in Thailand and 50% of patent applications filed by foreign companies in Thailand are handled by the firm. The firm also extensively handles trademark and patent prosecution and enforcement cases through associates in Vietnam, Laos, Cambodia and Myanmar.