Company Filing History:

4 out of 549

Celanese International Corporation

patents

1 out of 1,194

Hoechst Celanese Corporation

patents

Years Active: 1994-2003

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6667418 - Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation (2003-12-23),

2. 6339171 - Removal or reduction of permanganate reducing compounds and alkyl iodides from a carbonylation process stream (2002-01-15),

3. 6207859 - Stabilization and transport of &agr;, &bgr;-unsaturated carboxylic acid and removal of stabilizer (2001-03-27),

4. 6143930 - Removal of permanganate reducing compounds and alkyl iodides from a (2000-11-07),

5. 5371286 - Removal of carbonyl impurities from a carbonylation process stream (1994-12-06),

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Company Filing History:

Years Active: 1994-2003