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last 30 patents
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Patent Grant
Process for the production of vinyl chloride through thermal cracki...
Patent number
4,798,914
Issue date
Jan 17, 1989
Hoechst Aktiengesellschaft
Gerhard Link
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the purification of 1,2-dichloroethane
Patent number
4,747,914
Issue date
May 31, 1988
Hoechst Aktiengesellschaft
Peter Schwarzmaier
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of extremely pure monoethylene glycol
Patent number
4,349,417
Issue date
Sep 14, 1982
Hoechst Aktiengesellschaft
Siegfried Rebsdat
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for improving the activity of supported silver catalysts
Patent number
4,335,014
Issue date
Jun 15, 1982
Hoechst Aktiengesellschaft
Josef Alfranseder
C07 - ORGANIC CHEMISTRY