A patentable invention must be new, non-obvious, & this, like the "arts" the constitution encourages
In determining whether an invention is non-obvious, the U.S. Patent 
and ... Trade secret laws are included in intellectual property laws because, like... [DOC] [TLE] The Rules and Standards of Patentable Subject-Matter [PAR] invention is new, useful, and non-obvious, critics ask, why ... restriction, flexible 
scope limits should not concern .... Like other standards governing patent scope, 
they are unpredictable .... arts' as used in the Constitution ... is best represented 
in modern language by ... [P]atents do not only encourage research by providing.