patient vs patient of

patient is a noun but patient of is not a noun.

Word	Noun	Adjective	Verb	Adverb
patient	Yes	Yes	No	No
patient of	No	Yes	No	No

patient (noun)	patient of (noun)
the semantic role of an entity that is not the agent but is directly involved in or affected by the happening denoted by the verb in the clause
a person who requires medical care

patient (adjective)	patient of (adjective)
enduring trying circumstances with even temper or characterized by such endurance	showing the capacity for endurance