Guide
AI Claim Charts
Element-by-element charts in minutes—your judgment where it belongs.
What is an automated claim chart?
A claim chart maps each limitation of a patent claim to supporting evidence in an element-by-element table—prior art for invalidity, or an accused product for infringement. An automated claim chart is one whose first draft is generated by AI: it parses the patent into limitations, reads the documents you select, and proposes a pinpoint citation and rationale for each element, which an attorney then reviews.
What to look for in a claim chart generator
A few capabilities separate serious charting software from a generic AI wrapper:
- Reads the documents you actually work with. Patents, published applications, non-patent literature, spec sheets, manuals, and even product teardown videos—not just clean text.
- Pinpoint citations. Evidence cited to exact locations—columns and lines, paragraph numbers, page numbers—in a format your firm already uses.
- Scored evidence. A strength score on every citation so you can see at a glance which are strong and which need a second look.
- Attorney stays in control. Nothing belongs in an export until an attorney approves it. Generation clears the mechanical work; the legal calls stay with you.
How automated claim charts work
Select your documents. Choose the subject patent and your references or product materials. &AI detects the analysis type from what you select.
Let the AI find citations. It reads every document, scores each passage against each claim limitation, and presents candidates with a relevance rationale. Retrieval is hybrid—vector search surfaces candidate passages, then a language model filters and scores them against the specific limitation.
Review and export. Approve, reject, or edit each citation, then export to Word or Excel in your firm’s format. Because charts are living documents, you can rechart with natural-language instructions when a construction or strategy shifts.
Invalidity and evidence-of-use charts
For invalidity, a single reference runs as a §102 anticipation analysis, multiple references run as a §103 obviousness analysis, and the subject patent charted against itself runs as a §112 written-description analysis. A summary view shows how each reference maps to each claim element, so you can pick the strongest reference—or the best §103 combination—before polishing a chart.
For evidence of use, the same workflow points at products instead of prior art: select a spec sheet, manual, or teardown video and &AI maps it to the asserted claims as a §271 infringement analysis. For portfolio monetization, the Tables feature scans thousands of documents first to surface which products deserve a full chart.
In &AI
Generate claim charts in &AI
&AI generates both invalidity and evidence-of-use claim charts, scores every citation by strength, and exports to Word or Excel with your firm’s formatting. In an internal review of exported charts, roughly 83% of the evidence in the final export was already present in the first AI pass—for both invalidity and evidence-of-use work. Results connect directly to prior art search and the rest of your patent litigation workflow.
For a deeper walkthrough, read our guide to automated claim charts, or request a free sample claim chart to evaluate the work product quality on a patent you know.
Frequently asked questions
What is a claim chart?+
A claim chart maps each limitation of a patent claim to supporting evidence in an element-by-element table—prior art for an invalidity analysis, or an accused product for infringement. It is the core work product behind invalidity contentions and evidence-of-use analyses. Building one by hand means reading every reference and citing the exact passage that reads on each element.
What is the best tool to automatically generate patent claim charts?+
The strongest automated claim chart tools read the documents you actually work with—patents, non-patent literature, spec sheets, and product teardowns—and cite evidence with pinpoint locations in your firm’s format. &AI generates both invalidity and evidence-of-use charts, scores every proposed citation by strength, and exports to Word or Excel. In an internal review, roughly 83% of the evidence in the final export was already present in the first AI pass.
How do I create an invalidity claim chart?+
Select the subject patent and one or more prior art references, then let the tool map evidence to each limitation. In &AI, a single reference runs as a 102 anticipation analysis, multiple references run as a 103 obviousness analysis, and the patent charted against itself runs as a 112 written-description analysis. You review each proposed citation—approve, reject, or edit—before anything reaches an export.
Can AI generate element-by-element claim charts with citations to prior art?+
Yes. &AI charts each limitation independently, so every claim element gets its own row of evidence with a pinpoint citation and a relevance rationale. Each citation carries a confidence score shown as a color, from dark green (strongest) to red (weakest), so coverage is obvious at a glance. Patent claims and figures can serve as citation sources, and referenced figures flow into Word exports automatically.
What software creates evidence-of-use claim charts?+
Evidence-of-use (infringement) charting points the same workflow at products instead of prior art. In &AI you select product documentation—a spec sheet, a manual, or a teardown video—and it maps that evidence to the asserted claims as a 271 analysis, element by element. For portfolio work, the Tables feature first scans thousands of documents to surface which products deserve a full chart.
How long does it take to build a claim chart with AI?+
A first-draft chart that once took days of manual evidence-hunting is generated in minutes. The AI handles the mechanical work—finding and citing passages—while the attorney’s time goes to review and the legal calls that decide the case. Nothing is included in an export unless an attorney approves it.
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patent expertise
&AI is a platform for patent litigators to craft trial-ready work product—fast enough for pitches, strong enough for court.