Inventor
Jan Zwier
Inventor
Eindhoven, NL
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps57%
H05BElectric heating14%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1014%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
5,013,384'Vacuum system'19914,890,031'Semiconductor cathode with increased stability'19894,766,350'Electric circuit with transient voltage doubling for improved operation of a discharge lamp'19884,743,794'Cathode-ray tube having an ion trap'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'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1991Patents assigned to PHILIPS CORP (6)· patent assignee history
1988–1991Based in Eindhoven, NL· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILIPS CORP | 6 | 1988–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Eindhoven, NL | 6 | 1988–1991 |