Inventor

LIU HONGJIN

CN4 patents

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

SHENZHEN ELEMEX TECH LTD

2 patents

US12527434B2Jan 20, 2026

Interchangeable grinding cartridge device

SHENZHEN ELEMEX TECH LTD0 citations52

US11627836B2Apr 18, 2023

Automatic grinder and grinding method thereof

SHENZHEN ELEMEX TECH LTD0 citations52

ZTE CORP

1 patent

US10044284B2Aug 7, 2018

Synchronous rectifier driving method, synchronous rectifier circuit and switching power supply

ZTE CORP0 citations35

Global Healthcare SG Pte Ltd

1 patent

US12082681B2Sep 10, 2024

Thermal insulation backpack, and operation method thereof

Global Healthcare SG Pte Ltd0 citations30