Inventor
Friedrich Alber
Inventor
Kongen, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Fprimary
H01FMagnets67%
LOCD111%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
5,598,137'Coil for high-voltage transformer'19975,588,201'Process for producing a cast resin coil'19965,430,425'Integrated frame system'19954,576,768'Method for impregnating and embedding electrical windings'19864,523,171'Dry-type transformer with windings cast in casting resin'1985D0261640'Coupling transformer'19814,236,134'Multiphase transformer for power transmission in a supply system'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1985Patents assigned to TRANSFORMATOREN UNION AG (3)· patent assignee history
1980–1995Based in Kongen, DE· patent location history
1986–1997Patents assigned to SIEMENS AG (4)· patent assignee history
1996Based in Konz-Könen, DE· patent location history
1997Based in Koengen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS AG | 4 | 1986–1997 |
| TRANSFORMATOREN UNION AG | 3 | 1980–1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kongen, DE | 5 | 1980–1995 |
| Koengen, DE | 1 | 1997 |
| Konz-Könen, DE | 1 | 1996 |