Assignee
HOECHST CELANESE CHEMICAL CO
US·2 granted patents·13 citations·filing 1988–1989
Top patents by PatentIndex Score
2 records- 0170US4793901ASeparation of 2-pentanone from formic acid by extractive distillationHOECHST CELANESE CHEMICAL CO·Filed 1988·Granted Dec 27, 1988·10 cites·2 claims
- 0247US4909907ASeparation of formic acid from acetic acid by extractive distillation with acetyl salicylic acidHOECHST CELANESE CHEMICAL CO·Filed 1989·Granted Mar 20, 1990·3 cites·2 claims
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