Welcome to Skilled in the Art. I’m Law.com IP reporter Scott Graham. Consider today’s briefing a public service announcement: If you’re litigating a patent case in U.S. District Judge Vince Chhabria‘s San Francisco courtroom, do not assume that the common norms of patent practice apply. The 2013 Barack Obama appointee is clearly trying to reset expectations, and the results so far include sanctions against three brand name law firms. I’ll explain below. As always you can email me your thoughts and feedback and follow me on Twitter.

➤➤ Would you like to receive Skilled in the Art as an email? Sign up here.