Inventor

QI YUAN

Inventor
CN

Overview

6→
Patents
2022–2025
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

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

A45Bprimary
A45BWalking sticks8%
B60LPropulsion of electrically-propelled vehicles8%
B61CLocomotives8%
B61LGuiding railway traffic8%
C02FTreatment of water, waste water, sewage, or sludge8%
F21LLighting devices or systems thereof, being portable or specially adapted for transportation8%
F21VFunctional features or details of lighting devices or systems thereof8%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted8%
G06FElectric digital data processing8%
G06TImage data processing or generation, in general8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to CRRC QINGDAO SIFANG CO LTD (1)· patent assignee history
2022–2025Based in CN· patent location history
2024Patents assigned to SHENZHEN OBUY TECH CO LTD (1)· patent assignee history
2024Based in DE· patent location history
2025Patents assigned to BEIJING ZITIAO NETWORK TECHNOLOGY CO LTD (2)· patent assignee history
2025Patents assigned to GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (1)· patent assignee history
2025Patents assigned to HUNAN BRUNP RECYCLING TECH CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BEIJING ZITIAO NETWORK TECHNOLOGY CO LTD22025
CRRC QINGDAO SIFANG CO LTD12022
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD12025
HUNAN BRUNP RECYCLING TECH CO LTD12025
SHENZHEN OBUY TECH CO LTD12024
Locations
LocationPatentsSpan
CN52022–2025
DE12024