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Third Circuit

District of Delaware Exhibit Requirements

The District of Delaware is one of the most important federal courts for intellectual property and corporate litigation. Due to Delaware's status as the incorporation home for most major corporations and the court's patent expertise, D.Del handles a disproportionate share of complex commercial disputes. The court's Default Standard for Discovery and related local rules establish specific exhibit protocols that practitioners must follow.

D.DelCM/ECF (PACER)Per scheduling order (typically 45-60 days)
Prepare ExhibitsFederal Court Guide PDF

Quick Reference

E-Filing SystemCM/ECF (PACER)
File Size Limit35 MB per document
Plaintiff MarkingPTX-1, PTX-2, PTX-3...
Defendant MarkingDTX-1, DTX-2, DTX-3...
Exchange DeadlinePer scheduling order (typically 45-60 days)
Primary RuleLocal Rule 16.3, Default Standard

What This Guide Covers

Default Standard for Discovery in Patent Cases
Local Rule 16.3 pretrial procedures
Patent-specific exhibit numbering conventions
Joint claim construction exhibit requirements
Markman hearing exhibit protocols
Technical tutorial exhibit standards
PTX/DTX prefix requirements
Judges with patent law expertise

Divisions & Courthouses

Wilmington

  • •J. Caleb Boggs Federal Building
  • •Handles all district cases
  • •Heavy patent docket
  • •Delaware Chancery nearby for corporate matters

Judge-Specific Practices

D.Del judges have developed significant patent law expertise and maintain specific practices for Markman hearings and patent trials. Judge Connolly, Judge Stark (now on Federal Circuit), and other judges have particular exhibit preferences. Always review the assigned judge's Practices and Procedures document. For patent cases, coordinate with the court's technical advisors on exhibit formatting for tutorials.

Pro Tips for D.Del

  • 1Follow the Default Standard for Discovery carefully - it's strictly enforced
  • 2Use PTX/DTX prefixes for patent cases (standard convention)
  • 3Prepare exhibits early for claim construction (Markman) hearings
  • 4Technical exhibits should be high-resolution for Markman presentations
  • 5Joint exhibit lists are typically required well before trial
  • 6Judges often require technology tutorials - prepare visual exhibits

Common Mistakes to Avoid

Not following Default Standard for patent case discovery
Missing claim construction exhibit deadlines
Poor quality technical diagrams for Markman hearings
Failing to coordinate joint exhibits with opposing counsel
Not reserving exhibit numbers for claim construction phase
Overlooking judge-specific claim construction preferences

Related Court Guides

🆕 Trial Binder Mode

Alphabetic labels with per-exhibit numbering

Federal Overview

FRCP Rule 26 & CM/ECF

Federal PDF Guide

Comprehensive PDF download

State Courts

50 state guides

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