Like the +1 bonus from Implement Expertise and the +1 from Versatile Expertise?
NO, they do no stack
Typed bonuses do not stack with same typed bonuses. In your example the feats do not stack.
However, some feats provide untyped bonuses.
For instance the Fighter Feat
Fighter Weapon Specialization provides an untyped +1 to damage. This will stack with the feat bonus to damage from a focus feat (
Heavy Blade Focus,
Light Blade Focus etc).