 Some of these unique design ideas are patented, and these patents are assigned to the Target Brands subsidiary.For example, some such Target GiftCard designs feature a wooden front side.On May 24, 2005, the United States Patent and Trademark Office granted U.S. patent D505,450 for the "ornamental design for credit or stored value card with wood layer" to inventors Amy L. Lauer and John D. Mayhew.