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Inventor

YIXUAN HE

Inventor
CN

Overview

3→
Patents
2021–2024
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary
C07DHeterocyclic compounds20%
F16LPipes20%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
H04NPictorial communication, e.g. television20%
LOC2320%
PatentTitleYear
D1041633Aromatherapy cup202411,459,302Refining process and refining system of caprolactam202211,150,199Inspection system and method with variable-diameter traveling robot for inspection of natural gas pipeline2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to UNIV SOUTHWEST PETROLEUM (1)· patent assignee history
2021–2024Based in CN· patent location history
2022Patents assigned to ZHEJIANG HENGYI PETROCHEMICAL RES INSTITUTE CO LTD (1)· patent assignee history
2024Patents assigned to FUJIAN XI LUO SI E COMMERCE CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJIAN XI LUO SI E COMMERCE CO LTD12024
UNIV SOUTHWEST PETROLEUM12021
ZHEJIANG HENGYI PETROCHEMICAL RES INSTITUTE CO LTD12022
Locations
LocationPatentsSpan
CN32021–2024