1 (121) | Argonne National Laboratory * | USA | ||
2 (131) | Oak Ridge National Laboratory | USA | ||
3 (138) | National Renewable Energy Laboratory | USA | ||
4 (217) | Sandia National Laboratories, New Mexico | USA | ||
5 (509) | Sandia National Laboratories, California | USA | ||
6 (635) | U.S. Army * | USA | ||