Patent Venue: Where a Lawsuit Gets Filed and Why It Changes Everything

When someone files a patent infringement lawsuit against you, or when you are the one filing, the choice of courthouse is never random. Venue rules in patent cases determine which federal district court can hear the case, and that single decision ripples through every stage of litigation — from the judge assigned, to how long discovery takes, to whether a jury is likely to favor patent holders or defendants.

What Venue Means in Patent Cases

Venue is the legal term for the proper geographic location of a lawsuit. In federal court, venue is governed by statute. For patent infringement cases specifically, 28 U.S.C. § 1400(b) is the controlling provision. It says a patent case may be brought in the judicial district where the defendant either (1) resides, or (2) has committed acts of infringement and has a regular and established place of business.

For corporations, "resides" means where the company is incorporated — not where its headquarters sits, and not where it sells products. A Delaware-incorporated company "resides" in Delaware for venue purposes even if every one of its employees works in California.

The regular-and-established-place-of-business prong is more fact-intensive. Courts have held that a place of business must be a physical location, must belong to the defendant in some meaningful sense, and must be stable rather than temporary. A warehouse, a retail store, or a dedicated office generally qualifies. A remote employee's home generally does not, though litigation over that question has been active in recent years.

Why Venue Shopping Existed and How TC Heartland Changed It

For years, plaintiffs — particularly patent assertion entities — filed cases almost anywhere they liked by relying on a broad interpretation of the general federal venue statute rather than § 1400(b). The Eastern District of Texas became famous as a plaintiff-friendly forum, drawing a disproportionate share of all U.S. patent litigation.

In 2017, the Supreme Court decided TC Heartland LLC v. Kraft Foods Group Brands LLC and held that § 1400(b) is the sole and exclusive venue provision for patent cases. General federal venue rules do not apply. That decision dramatically narrowed where plaintiffs could file, and shifted significant caseload away from the Eastern District of Texas toward districts where defendants are actually incorporated or have real offices.

The Western District of Texas subsequently grew rapidly as a patent litigation venue. The District of Delaware remains dominant because so many companies are incorporated there. The Northern District of California handles a large volume of technology patent cases. Each district has its own local rules, its own scheduling norms, and its own judicial tendencies — all of which affect litigation strategy.

What Happens When Venue Is Wrong

If a plaintiff files in the wrong venue, the defendant can move to dismiss for improper venue or, more commonly, move to transfer the case to a proper district. Courts can also transfer a case to a different proper venue for convenience — meaning even if venue is technically correct, a defendant can argue the case should move because witnesses and evidence are located elsewhere.

Transfer motions add time and cost to litigation regardless of how they resolve. A successful transfer can shift a case from a rocket-docket district with a trial date eighteen months out to a district where trial is three or four years away. That timeline difference alone can alter settlement dynamics significantly.

For defendants, challenging venue early is critical. Venue objections can be waived if not raised promptly in the litigation. Missing the window to object to improper venue means the case stays where it was filed.

What This Means If You Receive a Complaint

If you receive a patent infringement complaint, the first questions your attorney will ask include: where are you incorporated, and do you have a physical place of business in the district where suit was filed? If the answer to both is no, a venue challenge may be available and worth pursuing.

For companies structuring operations, incorporation state and office locations are not just administrative choices — they determine where you can be sued for patent infringement. Companies with operations in multiple districts face broader venue exposure than those with a single incorporated location and no satellite offices.

Plaintiffs evaluating where to file need to analyze both prongs of § 1400(b) carefully before selecting a venue, because an improper filing invites delay, cost, and possible transfer to a less favorable forum.

Practical Takeaways

• Venue in patent cases is controlled by 28 U.S.C. § 1400(b), not the general federal venue statute — TC Heartland settled that question in 2017.
• A corporate defendant "resides" where it is incorporated, not where it operates day-to-day.
• A physical, stable, defendant-controlled location in a district can establish venue under the second prong of § 1400(b).
• Defendants must raise venue objections early or risk waiving them entirely.
• Even proper venue can be challenged on convenience grounds, which affects litigation timelines and settlement leverage.
• Where your company is incorporated and where you maintain physical offices directly determines your patent litigation exposure across federal districts.

This guide is general education, not legal advice, and does not create an attorney–client relationship. For your specific situation, talk to a registered patent attorney.