Probing Models of Extended Gravity using Gravity Probe B and LARES
  experiments
  We consider models of Extended Gravity and in particular, generic models
containing scalar-tensor and higher-order curvature terms, as well as a model
derived from noncommutative spectral geometry. Studying, in the weak-field
approximation, the geodesic and Lense-Thirring processions, we impose
constraints on the free parameters of such models by using the recent
experimental results of the Gravity Probe B and LARES satellites.
