Inventor

LIU HONGDE

CN4 patents

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

NR ELECTRIC CO LTD

1 patent

US10279686B2May 7, 2019

Locomotive regenerative electric energy feedback system with ice melting function and control method

NR ELECTRIC CO LTD1 citations57

SHENGZHEN BEIHAI RALL TRANSIT CENTURY TECH CO LTD

1 patent

USD1094326SSep 23, 2025

Holographic display container

SHENGZHEN BEIHAI RALL TRANSIT CENTURY TECH CO LTD0 citations53

SHENZHEN BEIHAI ITS COMMUNICATION CO LTD

1 patent

US12309350B2May 20, 2025

Player, playing system, and playing method

SHENZHEN BEIHAI ITS COMMUNICATION CO LTD0 citations53

UNIV NANKAI

1 patent

US10036102B2Jul 31, 2018

Bismuth and magnesium co-doped lithium niobate crystal, preparation method thereof and application thereof

UNIV NANKAI0 citations41