patent system vs jurisprudence

patent system and jurisprudence both are nouns.

Word	Noun	Adjective	Verb	Adverb
patent system	Yes	No	No	No
jurisprudence	Yes	No	No	No

patent system (noun)	jurisprudence (noun)
a legal system for protecting the rights of inventors	the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do
	the collection of rules imposed by authority