Inventor

GAO YIFEI

CN8 patents

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

CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD

2 patents

US12574646B2Mar 10, 2026

Detection apparatus and method, computer device, storage medium, and program product

CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD0 citations48

US12322132B2Jun 3, 2025

Machine vision detection method, detection apparatus and detection system thereof

CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD0 citations47

ZHANG HESHENG

1 patent

US8952178B2Feb 10, 2015

Thiophene derivatives

ZHANG HESHENG10 citations81

TIANJIN HEMAY BIO-TECH CO LTD

1 patent

US9630975B2Apr 25, 2017

Thiophene derivatives

TIANJIN HEMAY BIO-TECH CO LTD2 citations69

TIANJIN HEMAY PHARMACEUTICAL CO LTD

1 patent

US10611775B2Apr 7, 2020

Thiophene derivatives

TIANJIN HEMAY PHARMACEUTICAL CO LTD0 citations48

TIANJIN HEMAY BIO TECH CO LTD

1 patent

US10385062B2Aug 20, 2019

Thiophene derivatives

TIANJIN HEMAY BIO TECH CO LTD0 citations48

UNIV NORTHEAST PETROLEUM

1 patent

US11965734B2Apr 23, 2024

Method and system for quantitatively evaluating surface roughness of organic pore of kerogen in shale

UNIV NORTHEAST PETROLEUM0 citations44

NANJING HYDRAULIC RES INST

1 patent

US11692322B2Jul 4, 2023

Spur dike type fishway inlet

NANJING HYDRAULIC RES INST0 citations44