Direct methanol fuel cell (DMFC) systems with their hot swappable fuel cartridges will satisfy consumer demands for longer runtimes in numerous portable devices such as laptop computers. PolyFuel's patented membrane will enable DMFC systems to be smaller, lighter, quieter, less expensive and more robust than systems made with competing membrane materials. PolyFuel also has world-class fuel cell systems technology as evidenced by its prototypes developed for cell phones and laptop computers. This systems expertise, which provides the company with critical real-world direction for the development of its membrane technology, is also available as a service for customers seeking support for the integration of the PolyFuel membrane in their systems. Spun out from SRI in 1999.