Inventor

YANG YONGTAO

CN5 patents

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

OTIS ELEVATOR CO

1 patent

US10189680B2Jan 29, 2019

Landing-door door lock device

OTIS ELEVATOR CO3 citations68

ZHEJIANG DAHUA TECHNOLOGY CO

1 patent

US12511885B2Dec 30, 2025

Systems and methods for object recognition

ZHEJIANG DAHUA TECHNOLOGY CO0 citations46

HENGDIAN GROUP INNUOVO ELECTRIC CO LTD

1 patent

US12064841B2Aug 20, 2024

Device for installing retaining ring on shaft

HENGDIAN GROUP INNUOVO ELECTRIC CO LTD0 citations39

INST ROCK & SOIL MECH CAS

1 patent

US10794184B2Oct 6, 2020

Recyclable sand-consolidated anchor head prestressed anchor, anchorage jack and its application method

INST ROCK & SOIL MECH CAS0 citations34

INST OF ROCK & SOIL MECH CAS

1 patent

US9783948B2Oct 10, 2017

Root key type pressure bearing mechanism in anchor hole, root key type anchor cable and anchor hole grouting method

INST OF ROCK & SOIL MECH CAS0 citations30