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Inventor

Ruoxi Li

Inventor
CN

Overview

2→
Patents
2023–2025
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C21Dprimary
C21DModifying the physical structure of ferrous metals25%
C22CAlloys25%
G06KGraphical data reading25%
H03MCoding25%
PatentTitleYear
12,223,377Methods for constructing, generating, and reading dot-matrix code, dot-matrix code generating and reading terminals, and dot-matrix code system202511,655,514Deeply-hardened-surface turnout rail with high degree of undercooling and the preparation method thereof2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to PANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD (1)· patent assignee history
2023–2025Based in CN· patent location history
2025Patents assigned to SHIA INFORMATION TECH SHANGHAI CO LTD (1)· patent assignee history
2025Patents assigned to SIIA INFORMATION TECH SHANGHAI CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD12023
SHIA INFORMATION TECH SHANGHAI CO LTD12025
SIIA INFORMATION TECH SHANGHAI CO LTD12025
Locations
LocationPatentsSpan
CN22023–2025