District of Delaware
Delaware's federal court in Wilmington has been a leading patent forum for decades. The state's role as the place of incorporation for most large U.S. operating companies makes it a default residence under the patent venue statute, and the district's bench has built a sophisticated patent practice anchored by judge-specific standing orders, a Default Standard for Discovery, and — since 2022 — a notable disclosure program out of Judge Connolly's chambers requiring litigants to identify the real parties in interest behind plaintiff entities.
Overview
The U.S. District Court for the District of Delaware sits in Wilmington at the J. Caleb Boggs Federal Building. The district's patent docket is among the largest in the country and, after the venue tightening in TC Heartland, has continued to receive a steady volume of cases against Delaware-incorporated defendants — a category that includes most major U.S. operating companies and many startups.
The active bench includes a small number of district judges who carry the patent caseload, supplemented by magistrate judges who handle claim construction and discovery on referral. As of recent practice, Chief Judge Colm F. Connolly, Judge Richard G. Andrews, and Judge Maryellen Noreika are the judges most often associated with the patent docket; the visiting Federal Circuit retired and senior judges who have heard cases from the district have shifted over time. Judge Leonard P. Stark formerly led the district's patent docket before his elevation to the Federal Circuit in 2022.
The district's culture is procedurally demanding but generally less event-driven than the Eastern District of Texas's. Trials are set, but motion practice — particularly summary judgment, Daubert, and motions in limine — is heavy, and many cases resolve before trial.
Local patent rules
Unlike the Eastern District of Texas or the Northern District of California, the District of Delaware does not have a comprehensive set of local patent rules. Patent procedure is governed by:
- Judge-specific standing orders for patent cases. Each judge issues a default scheduling order, often called a Default Standard or Default Schedule for Patent Cases, that fixes the sequence of contentions, claim construction, expert discovery, and dispositive motions. The orders share a common architecture but vary in specifics — page limits, number of asserted claims, claim construction format.
- Default Standard for Discovery, Including Discovery of Electronically Stored Information. The district's standardized framework for ESI, search terms, document custodians, and email production. The Default Standard frames the parties' Rule 26(f) negotiations and is incorporated by reference in most scheduling orders.
- Local Rules of Civil Practice and Procedure. The district's general local rules, which apply to motion practice, sealing, and pretrial submissions in patent cases as in other civil matters.
The combined effect is that Delaware's patent regime is closer to a body of best practices distributed across judges than a single set of LPRs. Practitioners must read the standing order for the assigned judge before drafting initial disclosures.
Typical scheduling
Default scheduling for a Delaware patent case targets trial roughly two to two-and-a-half years after the scheduling conference, with claim construction completed roughly midway through. A representative sequence runs:
- Initial disclosures and a set of patent-specific disclosures (asserted claims, accused products, prior art) shortly after the Rule 26(f) conference.
- Final infringement and invalidity contentions on a fixed schedule, with limits on the number of asserted claims and prior art references absent good cause.
- Claim construction briefing and a Markman hearing roughly nine to twelve months into the case.
- Fact discovery cutoff, expert reports, and expert discovery on staggered deadlines.
- Summary judgment, Daubert, and motions in limine.
- Pretrial conference and trial.
Some judges narrow the asserted claims and prior art references at fixed checkpoints — for example, requiring the patentee to elect a number of claims at the close of fact discovery and the accused infringer to elect a number of references for trial. These narrowing orders shape strategy from the contention phase onward.
Notable practices
Discovery defaults
The Default Standard for Discovery sets initial parameters for ESI. Custodians are typically capped at a default number per side absent agreement; search terms and date ranges are negotiated against the Default Standard's defaults. Source code review proceeds at counsel's offices or a designated review facility on a non-networked machine; printing limits and inspection logs are standard.
Connolly LLC ownership disclosure orders
In April 2022, Chief Judge Connolly issued a standing order in his patent cases requiring plaintiffs that are limited liability companies, partnerships, or similar non-corporate entities to disclose the names and citizenship of every owner, member, and partner — and to identify any third-party litigation funder with a contingent financial interest in the case. The order, expanded in subsequent versions, also required disclosure of related entities and the parties responsible for prosecuting and licensing the patents-in-suit. The program has produced significant disclosures in cases involving entities affiliated with IP Edge and other licensing groups, as well as RPX-related disclosures, and has prompted contempt and sanctions proceedings where compliance was deemed inadequate. As an ongoing program from 2022 forward, the orders have shaped how parties structure entity ownership in cases assigned to Judge Connolly. Other Delaware judges have not uniformly adopted the same disclosure regime; counsel must check the standing order for the assigned judge.
Stays pending IPR
Stays pending inter partes review are granted with some regularity in Delaware, particularly when the PTAB has instituted and trial is more than several months away. The traditional three-factor analysis — simplification, stage of the case, and prejudice — controls. The district has not adopted a categorical posture for or against stays, and outcomes depend heavily on the assigned judge and case posture.
Sealing
Sealing of substantive filings is permitted under the local rules but is closely scrutinized at trial. Judges have repeatedly required parties to redact narrowly rather than seal entire documents and have rejected blanket sealing motions for damages and licensing materials at the pretrial stage.
Recent doctrinal pressure points
Several issues are active in the district. First, the LLC and litigation-funding disclosure program continues to develop; orders to show cause and follow-on hearings have produced findings and, in some cases, sanctions, with appeals to the Federal Circuit on related questions about the scope of judicial inquiry into entity ownership.
Second, post-TC Heartland venue questions in Delaware are largely resolved by incorporation in the state, but disputes persist around foreign defendants, subsidiaries, and the proper handling of cases brought against entities that no longer maintain Delaware operations.
Third, the interaction between district court schedules and parallel PTAB proceedings — including IPR estoppel and discretionary denials — produces recurring disputes over claim narrowing, supplementation of invalidity contentions after PTAB rulings, and the proper scope of district-court invalidity defenses after IPR.
Practical notes for first-time practitioners
- Read the assigned judge's standing order before the Rule 26(f) conference. Default schedules and claim narrowing protocols vary across judges.
- Build the Default Standard into the ESI plan. Custodian and search-term proposals are best framed against the district's defaults.
- If the case is before Judge Connolly, plan for ownership disclosures. Plaintiff counsel should be prepared to identify owners, members, and any litigation funder with a contingent interest. Disclosures are made under penalty.
- Expect heavy summary judgment and Daubert practice. Many cases resolve at this stage. Expert reports should be drafted with the dispositive motion in mind.
- Coordinate with PTAB strategy early. Stays are available but not automatic, and timing of IPR petitions matters.
- Engage Delaware local counsel. Delaware practice has its own conventions in motion practice, scheduling letters, and pretrial submissions; experienced local counsel materially affects compliance.
See also
- Eastern District of TexasSister patent forum with formal Local Patent Rules.
- Western District of Texas (Waco)Comparison venue for transfer and stay practice.
- Patent venueStatute and incorporation-as-residence rule that drives Delaware filings.
- Inter partes reviewStay considerations and parallel-proceeding strategy.
- Markman hearingsClaim construction practice in Delaware standing orders.
- DiscoveryThe Default Standard for Discovery framework.
Last reviewed: 2026