Inventor
Albrecht Kahmann
Inventor
Weingarten, DE
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D21Bprimary
D21BFibrous raw materials or their mechanical treatment24%
D21DTreatment of the materials before passing to the paper-making machine24%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management18%
B01DSeparation6%
B02CCrushing, pulverising, or disintegrating in general6%
B04BCentrifuges6%
B04CApparatus using free vortex flow, e.g. cyclones6%
C02FTreatment of water, waste water, sewage, or sludge6%
D21FPaper-making machines6%
PatentTitleYear
4,784,764'Arrangement for the flocculation of flocculatable substances in suspensions, particularly for the purification of the backwater of deinking installations for waste paper processing'19884,538,765'Method for defiberizing waste paper in a thick stock range'19854,402,463'Grinding apparatus for a suspension of fibres for paper manufacturing'19834,283,275'Apparatus for processing waste paper'19814,216,918'Fiberizer'19804,094,794'Hydrocyclone'19784,061,283'Refiner for grinding of fibrous material'19773,945,576'Stock pulper'19763,942,728'Stock pulper'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1988Patents assigned to ESCHER WYSS GMBH (8)· patent assignee history
1976–1988Based in Weingarten, DE· patent location history
1980Patents assigned to ESCHER WYSS LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ESCHER WYSS GMBH | 8 | 1976–1988 |
| ESCHER WYSS LTD | 1 | 1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weingarten, DE | 9 | 1976–1988 |