apparentness vs patency

apparentness and patency both are nouns.

Word	Noun	Adjective	Verb	Adverb
apparentness	Yes	No	No	No
patency	Yes	No	No	No

As nouns, patency is a hypernym of apparentness; that is, patency is a word with a broader meaning than apparentness:

Other hypernyms of apparentness include noticeability, noticeableness, obviousness.

apparentness (noun)	patency (noun)
the property of being apparent	the openness (lack of obstruction) of a bodily passage or duct
	the property of being easy to see and understand