Combining NASA technologies, or building on them in new ways, could lead to further advances in materials science, communications, manufacturing, heath and medicine or robotics, to name a few. NASA maintains a searchable database of all the eligible patents for licensing under its startup initiative. They cover everything from an airplane that can fly in low-density atmospheres like Mars to super-accurate lasers that can transfer data through space at the speed of light to lie-detection technology.
Although we think of NASA as mainly a science and exploration agency, it's easy to forget that it designs some pretty interesting stuff in service of that mission.