Varta warns Chinese firms on patent infringements, shares plunge
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FRANKFURT (Reuters) - German battery maker Varta said on Wednesday that it has warned electronic goods traders after finding products with batteries from Chinese manufacturers which infringe on its patents. The company's shares plunged 20% after the issue was flagged by a note from analysts at Commerzbank, which downgraded their recommendation for the stock to Hold from Buy. "If they do not react immediately after the deadline, we will seek preliminary injunctions," a Varta spokeswoman said,..