© Yan & Partners, 2026
EnTc
Drainage & MDP

Multipurpose Drain Pipe (MDP)

Our patented drainage and filtration pipe that resists clogging. Silver Award, HKMA/HKT Global Innovation Award 2024/25.

Year
2012 –
Client
In-house invention
Location
Hong Kong
Status
Ongoing
Category
Drainage & MDP

MDP is our own invention: a drainage and filtration pipe built to keep working where conventional perforated pipes clog. It installs directly in the soil without gravel beds or filter fabric, carries heavy loads, and can be made in many sizes and materials.

MDP has been used in a sewage works installation and in silt dewatering, and won a Silver Award (SMEs) at the HKMA/HKT Global Innovation Award 2024/25.

Hong Kong short-term patent HK1160345, granted 2012.