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Inventor

Johannes H. A. Vasterink

Inventor
Almelo, NL

Overview

3→
Patents
1988
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps100%
PatentTitleYear
4,749,904'Cathode ray tube with an ion trap including a barrier member'19884,736,135'Electron emission device provided with a reservoir containing material reducing the electron work function'19884,717,855'Dual-cathode electron emission device'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to PHILIPS CORP (3)· patent assignee history
1988Based in Almelo, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PHILIPS CORP31988
Locations
LocationPatentsSpan
Almelo, NL31988