A little bit married
a little bit pregnant
limited nuclear war
clean coal
quite unique
complete preemption**
partially preempted?
partially anticipated?
partially obvious?
partially invalid?
partially infringed?
**”While preemption may signal patent ineligible subject matter, the absence of complete preemption does not demonstrate patent eligibility.”
Ariosa Diagnostics, Inc. v. Sequenom, Inc., 788 F.3d 1371, 1379 (Fed. Cir. 2015).