• “Semiconducting Aerogels from Chalcogenide Clusters With Broad Applications” Kanatzidis, M. G.; Bag, S.  US Patent No. 7, 727,506. (2010) [pdf]
  • “Capping Layers for Improved Crystallization” Bag, S.; Mitzi, D. B.; Todorov, T. K.;  Barkhouse, A. D. US Patent No. 20130037090A1 (2013) [pdf]
  • "Controlled Crystallization to Grow Large Grain Organometal Halide Perovskite Thin Film" Bag, S.; Durstock, M. F. US Patent Appln. 15/228,112.
  • "Method for Producing High Quality, Ultra-Thin Organic-Inorganic Hybrid Perovskite" Bag, S.; Durstock, M. F. US Patent Appln. 15/233,171.
  • "Efficient Interconnecting Layer for Tandem Solar Cells" Bag, S.; Patel, R. J.; Durstock, M. F.; Leever, B. J. US Patent Appln. 62/437,289.