1. Baksh, M.S.A., Notaro, F.: Optimal pressure swing adsorption refluxing. US Patent 5,565,018, 1996
2. Baksh, M.S.A., Notaro, F.: Pressure swing adsorption process and system with segregated product storage tank. European Patent Application EP 0, 753 334 (1997)
3. Baksh, M.S.A., Rosinski, A.C.: Vacuum pressure swing adsorption process and enhanced oxygen recovery. US Patent 7,763,100, 2010
4. Baksh, M.S.A., Terbot, C.E.: Pressure swing adsorption process for the production of hydrogen. US Patent 6,503,299, 2003
5. Doshi, K.J., Patel, K.M.: Pressure swing adsorption recovery. US Patent 4,340,398, 1982