Inclusive decays ofBmesons to charmonium

We have used the CLEO-II detector at the Cornell Electron Storage Ringe (CESR) to study the inclusive production of charmonium mesons in a sample of 2.15 million BB{} events. We find inclusive branching fractions of (1.12±{}0.04±{}0.06)% for B{→}J/{ψ}X, (0.34±{}0.04±{}0.03)% for B{→}{ψ}{'}X, and (0.40±{}0.06±{}0.04)% for B{→}χc1X. We also find some evidence for the inclusive production of χc2, and set an upper limit for the branching fraction of the inclusive decay B{→}ηcX of 0.9% at 90% confidence level. Momentum spectra for inclusive J/{ψ}, {ψ}{'}, and χc1 production are presented. These measurements are compared to theoretical calculations.