Inventor
Harald Korfgen
Inventor
Frondenberg, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Kprimary
F16KValves33%
E03CDomestic plumbing installations for fresh water or waste water11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
Y10TTechnical subjects covered by former us classification11%
A46BBrushes6%
A47KSanitary equipment6%
B05BSpraying apparatus6%
B08BCleaning in general6%
B29CShaping or joining of plastics6%
G05GControl devices or systems insofar as characterised by mechanical features only6%
PatentTitleYear
6,457,191'Dual outlet faucet'20025,704,588'Disk-type cutoff and flow control valve'19985,427,351'Autoclosing flow-control valve'19955,405,089'Shower head with elastomeric nozzles'19955,402,977'Wall mount for bath fixture'19955,152,498'Valve handle with overload protection'19925,143,349'Valve with flow shield'19925,044,605'Flow-control and shutoff valve'19915,014,736'Shut-off and control valve'19914,614,449'Water-dispensing cleaning brush with deflecting means'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2002Patents assigned to GROHE ARMATUREN FRIEDRICH (9)· patent assignee history
1986Based in Hagen, DE· patent location history
1991–1995Based in Frondenberg, DE· patent location history
1995Patents assigned to FREIDRICH GROHE AKTIENGESELLSC (1)· patent assignee history
1998–2002Based in Hemer, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GROHE ARMATUREN FRIEDRICH | 9 | 1986–2002 |
| FREIDRICH GROHE AKTIENGESELLSC | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Frondenberg, DE | 7 | 1991–1995 |
| Hemer, DE | 2 | 1998–2002 |
| Hagen, DE | 1 | 1986 |