Individual holder
KRUEGER AS I
DK·6 granted patents·114 citations·filing 1979–2017
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
6 records- 0174US5635073AMethod for the purification of metal-containing aqueous media and method of preparing an adsorbentKRUEGER AS I·Filed 1993·Granted Jun 3, 1997·57 cites·16 claims
- 0253US5908554AMethod and plant for the purification of waste water by the activated sludge methodKRUEGER AS I·Filed 1995·Granted Jun 1, 1999·17 cites·9 claims
- 0349US4243522AMethod and apparatus for utilizing heat content in waste waterKRUEGER AS I·Filed 1979·Granted Jan 6, 1981·20 cites·3 claims
- 0439US6248241B1Process for the removal of dissolved metals and/or metalloids from an aqueous medium containing same and having a high content of saltKRUEGER AS I·Filed 1997·Granted Jun 19, 2001·11 cites·7 claims
- 0539US6238562B1Process for biological purification of waste water with reversing operationKRUEGER AS I·Filed 1998·Granted May 29, 2001·9 cites·4 claims
- 0627US11208339B2Treatment of wastewaterKRUEGER AS I·Filed 2017·Granted Dec 28, 2021·0 cites·21 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →