20 Utility Patents
#141 in Frankfurt-am-Main
#8,580 in Germany
#169,030 in the World
Forward Citations = 278
Company Filing History:



4. 2 out of 12
Hoechst Research & Technology Deutschland Gmbh & Co. Kg
5. 2 out of 15
Hoeschst Aktiengesellschaft
where one patent can have more than one assignee
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