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IP Litigation Deposition Supplement

deposition-ip-supplement

Provides IP-specific deposition examination frameworks for patent, trademark, copyright, and trade secret cases. Covers inventor, infringer, licensing, and expert witnesses with question maps for claim construction, prior art, willfulness, Georgia-Pacific factors, likelihood of confusion, and tra...

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Full skill instructions

IP Litigation Deposition Supplement

IP-specific examination strategies for patent, trademark, copyright, and trade secret depositions. Supplements @deposition-preparation as the primary framework.

Quick Start

  1. Activate @deposition-preparation as primary framework
  2. Gather: IP registrations, prosecution history, claim construction order, licensing history, expert reports
  3. Identify case type below and select relevant witness frameworks
  4. For expert depositions, also apply @deposition-expert-witness

Case Types

TypeKey IssuesKey Witnesses
PatentClaim construction, infringement (literal/​DOE), validity, willfulness, damagesInventors, R&D/​engineering, licensing, technical/​damages experts
TrademarkDistinctiveness, priority, likelihood of confusion, willfulness, damagesMark owner, marketing, survey experts, damages expert
CopyrightOwnership, originality, access, substantial similarity, fair use, damagesAuthors, access witnesses, similarity/​damages experts
Trade SecretExistence, reasonable secrecy measures, misappropriation, damagesSecret owners, accused misappropriators, security, damages expert

Examination Frameworks

Patent — Inventor

TopicKey Questions
ConceptionFirst conception date; problem solved; contemporaneous records; who was told
Reduction to practiceDate; testing/​prototyping; corroborating documentation
Prior art knowledgeKnown prior art; searches conducted; how invention differs from [specific ref]
ClaimsUnderstanding of claim scope; meaning of [disputed term]; relationship to accused product
ProsecutionInvolvement; review of office actions; reasons for amendments

Patent — Accused Infringer Technical Witness

TopicKey Questions
Product/​processHow [accused product] works; key components; development timeline
Design processAlternatives considered; why this approach; patent awareness; design-around efforts
Claim mappingPresence of [claim element]; how product performs [claim function]
Non-infringementWhich limitation not met; how product differs from claims
Prior artPrior products/​publications before patent priority date

Patent — Licensing/​Damages Witness

TopicKey Questions
Licensing historyExisting licenses; royalty rates; negotiation process; comparables
Commercial successSales figures; success attributable to patented feature
MarketCompetitors; non-infringing alternatives; market share impact
Hypothetical negotiationPre-infringement terms; Georgia-Pacific factors; royalty rate and base

Patent — Technical Expert

Apply @deposition-expert-witness plus:

  • Claim construction: Basis for construing [disputed term]; prosecution history; specification support
  • Infringement: Element-by-element walkthrough; physical exam of accused product; source code review (software)
  • Validity: Prior art considered; whether [reference] discloses [element]; PHOSITA motivation to combine

Patent — Damages Expert

TopicKey Questions
Reasonable royaltyMethodology; Georgia-Pacific factors applied; comparable licenses; royalty base
Lost profits"But for" world; manufacturing capacity; non-infringing alternatives; market share methodology
ApportionmentMethod for isolating patented feature value; consumer demand driver analysis

Trademark — Mark Owner

TopicKey Questions
Creation/​adoptionWhen/​who created; why chosen; first use in commerce
DistinctivenessInherent or acquired secondary meaning; consumer recognition; advertising investment
ConfusionAwareness of defendant's mark; actual confusion incidents; similarity; relatedness of goods
DamagesLost sales; goodwill damage; costs addressing confusion

Trademark — Accused Infringer

TopicKey Questions
AdoptionWhen/​who decided to use mark; prior search; awareness of plaintiff's mark
IntentIntent to trade on goodwill; legal advice; good/​bad faith indicators
ConfusionKnown confusion incidents; misdirected customers/​orders
MarketHow customers find and distinguish products

Trade Secret — Owner

TopicKey Questions
IdentificationSpecific description; what makes it secret; development date and team
Secrecy measuresPhysical/​electronic security; NDAs; need-to-know restrictions; training
ValueDevelopment investment; competitive advantage; cost of independent development
MisappropriationHow defendant acquired secret; evidence; timing

Trade Secret — Accused Misappropriator

TopicKey Questions
RelationshipNature of relationship; access; agreements signed; understood obligations
Accused informationAwareness of trade secret; how obtained; independent development evidence
Use/​disclosureUse of information; third-party disclosure; relation to accused product
NoticeKnowledge of confidentiality; steps taken regarding obligations

Document Focus Areas

DocumentTopics
Prosecution fileAmendments, arguments, prior art, rejections
Invention recordsLab notebooks, conception/​RTP dates, corroboration
Licensing agreementsTerms, comparability, negotiation history
Design/​technical docsDevelopment process, alternatives, product operation
Marketing materialsFeatures emphasized, performance claims
Confidentiality agreementsScope, obligations, signatories
Source codeSoftware patents, trade secret cases
Financial recordsDamages calculation support

Preparation Checklist

  • Review patents/​registrations/​trade secret identification
  • Review prosecution history and file wrapper (patent)
  • Map disputed claim terms and proposed constructions (patent)
  • Prepare claim element mapping chart (patent)
  • Identify prior art references and gaps (patent/​copyright)
  • Understand accused product/​process technical operation
  • Review licensing agreements and comparables
  • Prepare likelihood of confusion analysis (trademark — DuPont)
  • Review confidentiality agreements and secrecy measures (trade secret)
  • Understand damages theory and expert methodology
  • Review expert reports — apply @deposition-expert-witness

Pitfalls

  • Pin claim constructions before deposing technical witnesses — questions must track operative constructions
  • Lock inventors to specific conception/​RTP dates with corroborating documents
  • Force precise trade secret identification before substantive questions — vague descriptions create indefiniteness defenses
  • Prosecution history estoppel: lock infringers into positions foreclosing DOE arguments
  • Cover all 15 Georgia-Pacific factors with damages witnesses; gaps invite Daubert challenge
  • Willfulness (§ 284): pre-suit patent knowledge required — establish/​negate knowledge timeline
  • DTSA vs. state UTSA: confirm governing law; definitions and preemption scope vary
  • Copyright fair use: explore each of four factors independently with relevant witnesses

References

  • 35 U.S.C. §§ 101–287 (Patent Act)
  • 15 U.S.C. §§ 1051–1141 (Lanham Act)
  • 17 U.S.C. §§ 101–810 (Copyright Act)
  • 18 U.S.C. §§ 1836–1839 (DTSA)
  • Georgia-Pacific v. U.S. Plywood, 318 F. Supp. 1116 (S.D.N.Y. 1970)
  • Markman v. Westview Instruments, 517 U.S. 370 (1996)
  • Halo Electronics v. Pulse Electronics, 579 U.S. 93 (2016)

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