This study presents the updated information about patents of the fin-and-tube heat exchangers during 2001-2009. A total of 23 patents were examined and some explanations about how the work are provided. Fin patterns like convex-louver, enhanced wavy, enhanced slit, enhanced louver, vortex generators, and special fin pattern are reported in the present review paper. It is recommended that further detailed examinations via numerical simulation or experimental investigation be carried out in the future to gain further insight to these fin designs.