We propose CP asymmetries based on triple product correlations in the decays b~m ? t?j- with subsequent decays of t and ?j-. For the subsequent ?j- decay into a leptonic final state l-??10 we consider the three possible decay chains ?j- ? l-? ? l-??10, ? j- ? ln- ? l-??10 and ?j- ? W -?10 ? l-??10. We consider two classes of CP asymmetries. In the first class it must be possible to distinguish between different leptonic ?j- decay chains, whereas in the second class this is not necessary. We consider also the 2-body decay ?j- ? W -?10, and we assume that the momentum of the W boson can be measured. Our framework is the minimal supersymmetric standard model with complex parameters. The proposed CP asymmetries are non-vanishing due to non-zero phases for the parameters œ and/or Ab. We present numerical results and estimate the observability of these CP asymmetries. Œ SISSA 2006.