PERFECT SURGICAL TECHNIQUES v. OLYMPUS AMERICA, INC. (Fed. Cir. 2016) (P) – Reasonable diligence for antedating a reference requires only that the diligence be reasonably continuous

Reasonable diligence for antedating a prior art reference requires only that the diligence be reasonably continuous, not that attention be continuous throughout the critical period in order to be reasonable. Here, for example, a few periods of unexplained inactivity...