Counsel registry

Eric B. Fenster

6 case appearances — 6 as plaintiff counsel · 0 as defendant counsel.

Attorneys

Further reading

TC Heartland LLC v. Kraft Foods Group Brands LLC (2017)
Pre-TC Heartland, plaintiffs sued in plaintiff-friendly E.D. Tex. by default. Post-TC Heartland, venue is a real defense — and Delaware is where most U.S. patent cases land.
How to read a patent claim
A patent has a 50-page specification, a fancy abstract, and a row of figures. Lawyers and courts look at none of that. They look at the claims.
Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co. (2002)
Narrow your claim during prosecution and you presumptively give up the equivalents in between. The presumption is rebuttable, but in practice the prosecution history is a defendant's gold mine.
Cost of Inter Partes Review (IPR): a 2026 breakdown
An IPR ends most cases when the prior art is real. The all-in cost is roughly a tenth of full litigation — but only if you stage it right.
Patent term and expiration
Patents don't last forever. They don't even reliably last 20 years. The expiration date that actually matters depends on the earliest filing date, the maintenance schedule, and any USPTO or FDA delays the patent owner can claim back.