jurisprudence vs patent system

jurisprudence and patent system both are nouns.

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

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