Watson makes a generic version of the Duragesic fentanyl patch using the reservoir design.  Like Alza, the company that makes Duragesic, Watson has had recalls due to defective patches.

Watson Recalibrates Equipment After Fentanyl Patch Recall

Watson Pharmaceuticals has adjusted calibration for a machine that manufactures its fentanyl transdermal patches after a small number of them that leaked prompted a voluntary recall of one lot of the product.

Source: Watson Recalibrates Equipment After Fentanyl Patch Recall