Inventor

HU YIJIN

CN4 patents

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

DONGGUAN HAOTONG PLASTICS TECH CO LTD

2 patents

USD915372SApr 6, 2021

Case for electronic device

DONGGUAN HAOTONG PLASTICS TECH CO LTD6 citations74

US12029290B2Jul 9, 2024

Wireless earphones case production process

DONGGUAN HAOTONG PLASTICS TECH CO LTD1 citations52

SAP SE

2 patents

US12483597B2Nov 25, 2025

Hybrid-type authorization policy evaluation

SAP SE0 citations56

US12099469B2Sep 24, 2024

Low-memory and efficient hashmap

SAP SE0 citations46