Inventor
Hans-Juergen Keck
Inventor
Engelskirchen, DE
Overview
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%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2004Patents assigned to PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH (2)· patent assignee history
1997Based in Berlin, DE· patent location history
1999Patents assigned to PATENT TRUEHAND GES FUR ELEKTR (1)· patent assignee history
1999Based in Gummersbach, DE· patent location history
2004Based in Engelskirchen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH | 2 | 1997–2004 |
| PATENT TRUEHAND GES FUR ELEKTR | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Engelskirchen, DE | 1 | 2004 |
| Gummersbach, DE | 1 | 1999 |
| Berlin, DE | 1 | 1997 |