Inventor

Xingzhi Ma

Inventor
Beijing, CN

Overview

1→
Patents
2020
Patent span
Physics
Primary field (CPC G)

Patents· 1 as inventor

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

G01Jprimary
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light50%
G01NInvestigating or analysing materials by determining their chemical or physical properties50%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to PETROCHINA CO LTD (1)· patent assignee history
2020Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PETROCHINA CO LTD12020
Locations
LocationPatentsSpan
Beijing, CN12020