| name | claim-construction-chart |
| title | Joint Claim Construction Chart |
| description | Drafts Joint Claim Construction Charts for patent litigation Markman hearings in US federal courts. Organizes disputed claim terms with competing party constructions, intrinsic/extrinsic evidence citations, and agreement status. Use when preparing claim construction charts, Markman hearing exhibits, or joint prehearing statements in IP litigation. |
| author | CaseMark |
| author_url | https://github.com/CaseMark/skills/tree/main/skills/legal/claim-construction-chart |
| license | Apache-2.0 |
| version | 0.1.0 |
| execution_mode | open |
| jurisdiction | us |
| practice | ip |
| language | en |
Joint Claim Construction Chart
Drafts a joint claim construction chart presenting parties' competing interpretations of disputed patent claim terms for Markman proceedings.
Prerequisites
- Asserted patent(s): number, title, issue date, inventors, full claim text
- Case caption: party names, court/division, civil action number
- Identified disputed terms from contentions or meet-and-confer
- Parties' proposed constructions with supporting intrinsic evidence
- Prosecution history: office action responses, amendments, examiner statements
- Applicable local patent rules (e.g., N.D. Cal., E.D. Tex., D. Del.)
Quick Start
- Gather patent documents, disputed terms, and both parties' proposed constructions
- Identify the district's local patent rules for formatting requirements
- Build the disputed terms table with per-term evidence citations
- Classify each term as agreed, partially agreed, or disputed
- Add certifications and signature blocks per local rules
Output Structure
Caption and Cover
Include: court (full designation with division), all parties, civil action number, patent(s) with number/title/issue date/inventors, and document title per local rules ("Joint Claim Construction Chart" or "Joint Claim Construction and Prehearing Statement").
Disputed Terms Table
One row per disputed term with these columns:
| Column | Content |
|---|
| No. | Sequential or claim-order number |
| Claim Term | Exact language from patent |
| Claim No(s). | All claims where term appears |
| Context | Surrounding claim language for court reference |
| Plaintiff's Construction | Plain-language meaning + intrinsic evidence |
| Defendant's Construction | Plain-language meaning + intrinsic evidence |
| Agreement Status | Agreed / Partial / Disputed |
Evidence Citations
For each proposed construction, cite intrinsic evidence:
- Specification — col:line (utility) or paragraph number (applications)
- Claims — related claim language providing definitional context
- Prosecution history — office action responses, amendments, applicant arguments
- — specific figures illustrating term meaning
