Birnbaum & Umeda

California creators using copyrighted material need fair-use analysis — four-factor test (purpose, nature, amount, market effect) determines whether use is lawful without permission.

California trade secrets are protected under both state Uniform Trade Secrets Act (UTSA) and federal Defend Trade Secrets Act (DTSA, 2016). No registration required — but reasonable secrecy efforts are.

Patents are entirely federal — granted by the USPTO and litigated in federal district court. California infringement actions are filed in U.S. District Courts for the Northern.