1
Robert C Yeggy, Vita J Altavilla: Separating compositions and methods of use. VARY Petrochem, Benesch Friedlander Coplan & Aronoff, July 20, 2010: US07758746 (6 worldwide citation)

Compositions and methods are provided for separating bitumen from oil sands in an efficient and environmentally acceptable manner, and for recovering residual bitumen from existing tailings ponds.


2
Robert C Yeggy, Vita J Altavilla: Separating compositions and methods of use. VARY Petrochem, Benesch Friedlander Coplan & Aronoff, August 31, 2010: US07785462 (2 worldwide citation)

Compositions and methods are provided for separating bitumen from oil sands in an efficient and environmentally acceptable manner, and for recovering residual bitumen from existing tailings ponds.


3
Robert C Yeggy, Vita J Altavilla: Separating compositions and methods of use. VARY Petrochem, Benesch Friedlander Coplan & Aronoff, December 31, 2009: US20090321325-A1

Compositions and methods are provided for separating bitumen from oil sands in an efficient and environmentally acceptable manner, and for recovering residual bitumen from existing tailings ponds.