Inventor
CHENG JUAN
HK14 patents
⚠️ This page may combine multiple inventors who share the name “CHENG JUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GOLDWAY TECH LIMITED
5 patentsUS11835466B2Dec 5, 2023
Diamond clarity measurement process and system
GOLDWAY TECH LIMITED0 citations55
US11016033B2May 25, 2021
Diamond clarity measurement process and system
GOLDWAY TECH LIMITED0 citations55
US12292385B2May 6, 2025
Gemstone colour grading process and grading system
GOLDWAY TECH LIMITED0 citations53
US11879859B2Jan 23, 2024
Process for determining the type of a diamond
GOLDWAY TECH LIMITED0 citations53
US10762666B2Sep 1, 2020
Colour grading process and system for diamonds
GOLDWAY TECH LIMITED0 citations34
DELTA ELECTRONICS SHANGHAI CO
4 patentsUS11532538B2Dec 20, 2022
Component structure, power module and power module assembly structure
DELTA ELECTRONICS SHANGHAI CO4 citations72
US10720378B2Jul 21, 2020
Component structure, power module and power module assembly structure
DELTA ELECTRONICS SHANGHAI CO2 citations72
US11490516B2Nov 1, 2022
Power module structure
DELTA ELECTRONICS SHANGHAI CO0 citations51
US10097103B2Oct 9, 2018
Power conversion module with parallel current paths on both sides of a capacitor
DELTA ELECTRONICS SHANGHAI CO0 citations41