Inventor
Helmut Pfeil
Inventor
Linz, AT
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Dprimary
E21DShafts100%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to MAYREDER KRAUS & CO ING (1)· patent assignee history
1994Patents assigned to TUNNEL PLAN ERRICHT BETRIEBSAG (1)· patent assignee history
1994Based in Linz, AT· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MAYREDER KRAUS & CO ING | 1 | 1994 |
| TUNNEL PLAN ERRICHT BETRIEBSAG | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Linz, AT | 1 | 1994 |