Responding to the Complaint Skip over navigation
LexisNexis® Browse Law Reviews and Treatises
Skip over navigation
Sign in with your® ID to access the full text of this chapter.
Order from the LexisNexis Store. Formats may include:
  • eBook for Mobipocket readers, including Amazon® Kindle

  • eBook for eReader, including Adobe® Digital Edition, Apple® iPad®, Sony® Reader

  • Print (Hardcover)


Horwitz on Patent Litigation
Copyright 2017, Matthew Bender & Company, Inc., a member of the LexisNexis Group.

1-3 Horwitz on Patent Litigation 3.syn


Responding to the Complaint


Lester Horwitz;and Ethan Horwitz

Chapter Summary


This chapter from Patent Litigation: Procedures and Tactics addresses the procedure for responding to a complaint in a patent infringement suit in a federal court. The chapter is devoted primarily to the procedural aspects of the first responsive appearance.

The chapter first considers the manner of response, which is governed by Rule 12 of the Federal Rules of Civil Procedure. The chapter also discusses the time and manner of serving and filing; deadlines and the availability of extensions of time; and the consequences of answering, including the waiver of challenges to jurisdiction and venue. The chapter next considers the content of the answer, including the denials and affirmative defenses required by Rule 8; the hazards of failing to file a denial; motions under Rule 12 which may be raised prior to filing a responsive pleading; and the defenses which can be asserted later as well as those which cannot. Finally, the chapter discusses the consequences of victory in the trail court by the patent owner and the importance of the tactical weapon, available to the accused infringer, of the counterclaim for declaratory judgment.

Patent Litigation: Procedure & Tactics (Matthew Bender) discusses all stages of patent litigation, including the filing of the suit, pretrial pleadings and investigation, claim construction and Markman hearings, trial and evidentiary matters, examination of experts, standards for establishing inequitable conduct, jury instructions, damages, and injunctive relief. It also provides tactical strategies for infringement suits, as well as checklists of black letter law for claim construction, infringement, validity, doctrine of equivalents, and prosecution history estoppel.


Patent Infringement,Response to the Complaint,Answer,Waiver of Defenses,Defensive Pleading,Affirmative Defenses,Motions under Rule 12,Rule 8 Defenses,Counterclaim for Declaratory Judgment,Responsive Pleadings


For a detailed discussion of prefiling issues, see Chapter 1, Prefiling Considerations.

For a discussion of the complaint, see Chapter 2, Filing the Suit.

For a discussion of additional pretrial matters, see Chapter 4, Preliminary, Ancillary, and Collateral Matters; Chapter 4A, Pretrial Organization; and Chapter 5, Pretrial Investigation.

For a discussion of patent litigation checklists, see Chapter 10, Checklists Relating to Patent Litigation.


See Chisum on Patents (Matthew Bender) for expert guidance on the law of patentability, validity, and infringement of patents.

See Moore's AnswerGuide: Federal Pretrial Civil Litigation (Matthew Bender) for answers to questions about federal pretrial practice and procedure, including forum selection, removal, parties, pleading, provisional remedies, discovery, and pretrial motions.

See Moore's AnswerGuide: Federal Discovery Practice (Matthew Bender) for guidance in discovery in federal civil cases, including topics such as requests for production, interrogatories, depositions, requests for admission, privilege, discovery of electronically stored information, and discovery from nonparties.

See Moore's AnswerGuide: Federal Civil Motion Practice (Matthew Bender) for succinct answers to major points of federal practice regarding motions, including motions to dismiss, motions relating to discovery, summary judgment motions, and motions for costs and attorney's fees.

See Moore's Federal Practice (Matthew Bender) for fully annotated and practice-oriented coverage of every detail of procedure in federal civil cases, following the sequence of the Federal Rules of Civil Procedure.
If you are interested in obtaining a® ID and Password, please contact us at 1-(800)-227-4908 or visit us at
Search Documents
eg., Environmental Insurance Coverage Under the Comprehensive General Liability Policy

Lexis® Web - The only search engine that delivers free web content specifically from legal sites validated by LexisNexis® attorney editors and includes tools for faster research and more relevant results.

LexisNexis Store
Research Now - Go to
Connect the Dots - Free 1 hour webcast
Share. Network. Discover. - Go to LexisNexis Communities