Inventor

LEUNG CHI YIN ALAN

HK57 patents

⚠️ This page may combine multiple inventors who share the name “LEUNG CHI YIN ALAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEUNG CHI YIN ALAN

POLYGROUP MACAU LTD BVI

Powered tree construction

Powered tree construction

Powered tree construction

Variable multi-color LED light string and controller for an artificial tree

Stand with inserts

Powered tree construction

Light string system

Powered tree construction with rotation limiting

Powered tree construction with rotation limiting

Variable multi-color LED light string and controller for an artificial tree

Powered tree construction with rotation limiting

Variable multi-color LED light string and controller for an artificial tree

Variable multi-color LED light string and controller for an artificial tree

Systems and methods for water-resistant lamp holders

Variable multi-color LED light string and controller for an artificial tree

Variable multi-color LED light string and controller for an artificial tree

Powered tree construction with rotation limiting

Multi-wire quick assemble tree

Powered tree construction

Powered tree construction

Powered tree construction

Systems and methods for a container with portholes

Tree stand

Seasonal light strings and method of assembling seasonal light strings employing capacitor shunts

Seasonal light string and method of assembling seasonal light strings employing capacitor shunts

Pool ladder safety system

Electrical safety system with timer

Systems and methods for a container with portholes

Powered tree construction with rotation limiting

Systems and methods for a container with portholes

Multi-wire quick assemble tree

Systems and methods for a container with portholes

BELGRAVIA WOOD LTD

Combined electrical and mechanical connector

Air bed having an improved built-in air pump

Systems and methods for water resistant decorative light strings

Combined electrical and mechanical connector

Durable coated and wired diode apparatus

Systems and methods for water resistant decorative light strings

LED light string with transparent and opaque coatings

Combined electrical and mechanical connector

Combined electrical and mechanical connector

POLYGROUP MACAU LTD (BVI)

Multi-wire quick assemble tree

Powered tree construction

Stand with inserts

LEUNG CHI YIN ALAN

Pool canopy system

Pool ladder safety system

CHENG CHUNG WAI PAUL

Light string system

Light string system

LAWSON GARY LEE

Cleaning systems and methods for cleaning containers having non-vertical sidewalls

POLYGROUP MACAO LTD BVI

Lamp cover