P7 Gupta, R., Xu, Z., Clark, I. and H. Yang, Bromination process, 2012, US Patent 8,198,208.
P6 Masliyah, J., Wallwork, V. and Z. Xu, Oil assisted (oily bubble) bitumen flotation process in oil sands extraction, 2012, Canadian Patent 2,421,471.
P5 Kuznicki, S., Kelly, D., Mitlin, D. and Z. Xu, Mercury adsorption using zeolite supported metallic nanodots, PCT WO2008/070988 A1, 2007; US patent Application 2010/0050868.
P4 Xu, Z., Liu, J. and Z. Zhou, Reactive oily bubble carriers in flotation processes and methods of generation and uses thereof, 2005, US Patent 6,959,815.
P3 Beetge, J.H., Kasongo, T., Komishke, B., Li, H., Long, J., Masliyah, J., Venter, J., Wang, S. and Z. Xu, Processing aids for enhanced hydrocarbon recovery from oil sands, oil shale and other petroleum residues, 2005, PCT WO 2005/028592 A1.
P2 Choung, J., Szymanski, J. and Z. Xu, Process for treating fine coal particles, 2004, US Patent 6,767,465 (licensed to Energy Pacific, USA).
P1 Xu, Z. and Y. Gu, Magnetic nano particles for bioseparation applications, 2003, PCT 03/005029 A2.
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