Inventor

Hongyuan Fang

Inventor

Beijing, CN

Overview

1995–2021

Patent span

Mechanical engineering

Primary field (CPC F)

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

F16Lprimary

F16LPipes29%

A44BButtons, pins, buckles, slide fasteners, or the like14%

E03FSewers14%

G01NInvestigating or analysing materials by determining their chemical or physical properties14%

G06FElectric digital data processing14%

Y10TTechnical subjects covered by former us classification14%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1995Based in Taipei, TW· patent location history

2021Patents assigned to WELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD (2)· patent assignee history

2021Patents assigned to EMC IP HOLDING CO LLC (1)· patent assignee history

2021Patents assigned to INFRASTRUCTURE RENEWAL INST OF SOUTHERN CALIFORNIA (1)· patent assignee history

2021Patents assigned to INFRASTRUCTURE RENEWAL INST OF SOUTHERN CHINA (1)· patent assignee history

2021Patents assigned to SAFEKEY ENGINEERING TECH ZHENGZHOU LTD (1)· patent assignee history

2021Based in Beijing, CN· patent location history

2021Based in Henan, CN· patent location history

2021Based in Guangdong, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD	2	2021
EMC IP HOLDING CO LLC	1	2021
INFRASTRUCTURE RENEWAL INST OF SOUTHERN CALIFORNIA	1	2021
INFRASTRUCTURE RENEWAL INST OF SOUTHERN CHINA	1	2021
SAFEKEY ENGINEERING TECH ZHENGZHOU LTD	1	2021

Locations