Plumsea is US counsel for one of the largest multinational telecom manufacturers in the world. Our experience in telecom covers a wide variety of subject matters, including switches, exchanges, handsets, hotspots, and advance intelligence networks among others. Plumsea has an unmatched record for quality and performance in the telecom industry.


U.S. Patent No. 9,380,148 Screen Unlock

A screen unlocking method.


U.S. Patent No. 9,374,118 Sim Card structure

A drawer type SIM card structure that can be mounted in the interior of an electronic product.


U.S. Patent No. 9,100,746 Mobile Terminal Handwriting Pen

A mobile handwriting pen which is integrated with an earphone.