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Inventor

Yanwei Lei

Inventor
Chengdu, CN

Overview

5→
Patents
2017–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

F16Kprimary
F16KValves38%
G05DSystems for controlling or regulating non-electric variables31%
Y10TTechnical subjects covered by former us classification15%
F16FSprings8%
F16JPistons8%
PatentTitleYear
10,443,748Actuator of regulator and fluid regulator201910,267,427Spring adjusting device and valve assembly20199,920,835'Piston device and pressure regulator using same'20189,903,501'Valve assembly'20189,645,587'Driving apparatus and valve including the same'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017–2019Patents assigned to EMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC (4)· patent assignee history
2017–2019Based in Chengdu, CN· patent location history
2018–2019Patents assigned to FISHER JEON GAS EQUIPMENT CHENGDU CO LTD (2)· patent assignee history
2019Based in Sichuan, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC42017–2019
FISHER JEON GAS EQUIPMENT CHENGDU CO LTD22018–2019
Locations
LocationPatentsSpan
Chengdu, CN42017–2019
Sichuan, CN12019