Inventor

WANG DACHUAN

CN5 patents

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

BEIJING ZHONGXIANGYING TECH CO LTD

3 patents

US12299257B2May 13, 2025

Communication method, server, and computer device

BEIJING ZHONGXIANGYING TECH CO LTD0 citations57

US11928311B2Mar 12, 2024

Communication method, terminal, server, communication system, computer device and medium

BEIJING ZHONGXIANGYING TECH CO LTD0 citations57

US11762719B2Sep 19, 2023

Data distribution system and data distribution method

BEIJING ZHONGXIANGYING TECH CO LTD0 citations44

GULF SECURITY TECH CO LTD

1 patent

US12482346B2Nov 25, 2025

Optical filter, and test assembly and method for smoke detector

GULF SECURITY TECH CO LTD0 citations40

TRANSP PLANNING AND RESEARCH INSTITUTE MINISTRY OF TRANSP

1 patent

US10325152B1Jun 18, 2019

Method of extracting warehouse in port from hierarchically screened remote sensing image

TRANSP PLANNING AND RESEARCH INSTITUTE MINISTRY OF TRANSP0 citations33