term:

Obvious

obvious adj

: easily seen, discovered, or understood
;specif
: readily apparent to a person of ordinary skill in a particular art considering the scope and content of the prior art see also patent NOTE: An invention that is found to be obvious cannot be patented.
ob·vi·ous·ness n

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.