Counsel registry

Lerner David

1 case appearance — 1 as plaintiff counsel · 0 as defendant counsel.

Attorneys

Further reading

The America Invents Act (2011)
The AIA was the structural reform that gave defendants modern tools — IPR, broader prior art, joinder limits. The unfinished work is cost: AIA didn't make defense free, it made defense possible.
AI prior art search tools: a 2026 buyer's guide for defendants
AI doesn't replace a patent attorney's judgment. It does replace the search step that used to cost $20,000 and take three weeks.
Markman v. Westview Instruments, Inc. (1996)
Claim construction is exclusively the court's job. The Markman hearing is the most consequential single ruling in nearly every patent case — and a defendant's best chance to end the litigation before trial.
Prior-art research, old way vs new way — a side-by-side comparison
Defense is expensive because reading thousands of pages of patents takes time. AI doesn't change that for the lawyer's strategic work — but the time-on-pages part collapses by orders of magnitude.
Mayo Collaborative Services v. Prometheus Laboratories (2012)
The two-step framework defendants now recite from memory comes from Mayo, not Alice. Mayo is the often-overlooked but doctrinally essential ancestor of every modern § 101 motion.