Patent on steel plate for bridge bearing

Patent on Spherical bearing with wedge for controlling rotational reaction force

Patent on Rubber Elastomeric Bearing with hat-type steel damper

Patent on Reinforcement of Pillar Structure by Bimetal Reinforced Steel Plate (US Patent)

Patent on steel plate for bridge bearing

Patent on Oiless Bearing with separate upper plate

Patent on Oiless Bearing with modified upper plate

New Technology certificate on Oiless Bearing by Korea government

Oiless Bearing

Patent on Bridge Bearing for prevention of noise and vibration

Patent on Oiless Bearing for reduction of noise and impact