Inventor

Yiexun Xia

Inventor
Tianjin, CN

Overview

1→
Patents
1991
Patent span
Human necessities
Primary field (CPC A)

Patents· 1 as inventor

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

A61Bprimary
A61BDiagnosis100%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to CHINA NATIONAL ELECTRONICS IMP (1)· patent assignee history
1991Patents assigned to CHINA XIAO FENG TECHNOLOGY & E (1)· patent assignee history
1991Patents assigned to WIDE TRADE FOUNDATION LTD & EX (1)· patent assignee history
1991Based in Tianjin, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA NATIONAL ELECTRONICS IMP11991
CHINA XIAO FENG TECHNOLOGY & E11991
WIDE TRADE FOUNDATION LTD & EX11991
Locations
LocationPatentsSpan
Tianjin, CN11991