[This is a transcription of handwritten notes.]

Patent

For validity, you need 5 things:

(1) Patentable subject matter

machines, processes, articles
of mfr.

not nat’l laws

(2) Novelty (newness)

determination is based

on the “prior art”

(3) Nonobviousness

(some amount of cleverness)

determined by reference to

prior art

(4) Utility (usefulness)

(5) Disclosure

(enablement, written
description)

Validity is needed:

· to get the patent issued

· to beat back defendants
in infringement litigation