A Texarkana business is suing a host of pharmaceuticals companies it claims have infringed on patents it owns for medicated patches.

LecTec is described in the suit as a “Minnesota corporation with its principal place of business at 1407 South Kings Highway in Texarkana, Texas.”

Pain-relieving medicines sold in patch form, such as Icy Hot and BENGAY, are said to unlawfully infringe on two LecTec patents, according to the suit filed Friday.

In all, five separate companies that produce a total of six different products are accused of using LecTec’s patented pa...

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