A lot of aircrafts feature a leading edge fairing for the wing, at the connection with fuselage, in order to reduce the airflow interference.
Aerodynamically speaking, those fan blades in the turbofan engine should also be installed with that leading edge fairing at the connection with the spinner. However I wasn't able to find one like so, not even one those recently released engines. Is this due to patent-related reasons? Does a fan blade leading edge fairing not need to be installed?