Assignee
CHEMIEBAU DR A ZIEREN GES MIT
2 granted patents·5 citations·filing 1973–1975
Top patents by PatentIndex Score
2 records- 0139US4062871AProcess for the desublimation of phthalic anhydrideCHEMIEBAU DR A ZIEREN GES MIT·Filed 1975·Granted Dec 13, 1977·3 cites·7 claims
- 0228US3950502AProcess for working up the scrubbing solution obtained in the scrubbing of So2 -containing waste gasesCHEMIEBAU DR A ZIEREN GES MIT·Filed 1973·Granted Apr 13, 1976·2 cites·12 claims
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