Inventor
Wolfgang Holten
Inventor
Dusseldorf, DE
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F28Fprimary
F28FDetails of heat-exchange and heat-transfer apparatus, of general application25%
B01DSeparation13%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling13%
B23KSoldering or unsoldering13%
B23PMetal-working not otherwise provided for13%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact13%
Y10TTechnical subjects covered by former us classification13%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–1995Patents assigned to BALCKE DUERR AG (2)· patent assignee history
1994–2013Based in Dusseldorf, DE· patent location history
2013Patents assigned to BALCKE DUERR GMBH (1)· patent assignee history
2013Patents assigned to HOFFMANN HORST (1)· patent assignee history
2013Patents assigned to HOLTEN WOLFGANG (1)· patent assignee history
2013Patents assigned to KALKA ARNOLD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BALCKE DUERR AG | 2 | 1994–1995 |
| BALCKE DUERR GMBH | 1 | 2013 |
| HOFFMANN HORST | 1 | 2013 |
| HOLTEN WOLFGANGself | 1 | 2013 |
| KALKA ARNOLD | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dusseldorf, DE | 3 | 1994–2013 |