21 Utility Patents
#81 in Darmstadt
#7,882 in Germany
#157,258 in the World
Forward Citations = 123
Company Filing History:

Zimmer Aktiengesellschaft
Lurgi Zimmer Aktiengesellschaft
4. 2 out of 96
Roehm Gmbh Chemische Fabrik
5. 1 out of 104

where one patent can have more than one assignee
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