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Inventor

Wei Chen

Inventor
Wilmette, IL, US

Overview

3→
Patents
1999–2017
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A61Fprimary
A61FFilters implantable into blood vessels50%
C03CChemical composition of glasses, glazes or vitreous enamels25%
H01JElectric discharge tubes or discharge lamps25%
PatentTitleYear
9,757,255'Vacuum pump systems for prosthetic limbs and methods of using the same'20179,066,822'Vacuum pump systems for prosthetic limbs and methods of using the same'20155,897,927'Seal for vacuum devices and methods for making same'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to IND TECH RES INST (1)· patent assignee history
1999Based in Hsinchu, TW· patent location history
2015–2017Patents assigned to UNIV NORTHWESTERN (2)· patent assignee history
2015Patents assigned to CALDWELL RYAN J (1)· patent assignee history
2015Patents assigned to CHEN WEI (1)· patent assignee history
2015Patents assigned to HANSEN ANDREW H (1)· patent assignee history
2015Based in Glenview, IL, US· patent location history
2017Based in Wilmette, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV NORTHWESTERN22015–2017
CALDWELL RYAN J12015
CHEN WEIself12015
HANSEN ANDREW H12015
IND TECH RES INST11999
Locations
LocationPatentsSpan
Wilmette, Illinois, US12017
Glenview, Illinois, US12015
Hsinchu, TW11999