Patent Claim Charting Services
Turn patent claims into actionable infringement evidence
Element-by-element claim charts backed by real product evidence
IIPRD provides patent claim charting services for patent owners, law firms, corporate IP teams, and litigation teams. A claim chart gives a structured, element-by-element comparison between the limitations of a patent claim and the features, functions, or technical evidence of a potentially infringing product or process. Our methodology combines claim interpretation, prosecution history review, product analysis, source code review, standards mapping, teardown, and reverse engineering, matched to the technology and the evidence available.
What is a patent claim chart?
A feature-by-feature mapping of a patent claim against a potentially infringing product, process, technology, or technical standard.
The chart determines whether the identified product appears to contain each individual limitation of the asserted claim, and it captures the supporting evidence for every limitation in one organized place.
A well-prepared chart requires both a technical understanding of the patented invention and detailed knowledge of the accused product, which is why manual mapping sits at the center of our work.
Six ways we build the evidence
We start with what the manufacturer publishes, then reach deeper where a claim element is not visible from documentation alone.
Direct product references
Manuals, datasheets, specifications, brochures, product pages, white papers, and disclosures, with source and date checked.
Indirect technical references
When a feature is not stated, we reason from functionality, architecture, and input and output behavior to infer the claimed element.
Technical standard mapping
For SEPs, claims are mapped against the relevant standard to show which portions correspond to each claim element.
Source code review
For software inventions, we analyze algorithms, data flows, processing logic, and modules that documentation cannot reveal.
Product teardown analysis
For mechanical and hardware inventions, disassembly reveals internal components and structures for claim mapping.
Semiconductor reverse engineering
For chip-level claims, layer-by-layer analysis maps device structures and processes against the claims.
Standards mapping chain
For standardized technologies, we connect the claim to the standard to the product to show the essentiality link.
Function, way, result test
Where a product does not literally meet an element, we consider whether a substitute performs substantially the same:
Claim charting across technologies
Charting teams matched to the technology, from chip structures to mechanical assemblies.
Semiconductors
Devices, IC architecture, chip structures, fabrication processes, packaging, memory, and processors.
Telecommunications & SEP
4G/5G/6G, Wi-Fi, RF and mmWave, networking, protocols, and standard essential patents.
Software & AI
Algorithms, computer-implemented inventions, machine learning, data processing, and cloud technologies.
Automotive
ADAS, autonomous driving, vehicle electronics, connected vehicles, EV, and battery management.
Electronics & consumer products
Electronic devices, sensors, displays, imaging, wearables, and consumer electronics.
Mechanical technologies
Mechanical systems, devices, assemblies, components, and industrial equipment.
A technical foundation for enforcement
A well-prepared chart shows which claim elements are supported by evidence and where further technical investigation is needed, before you commit to enforcement.
AI-assisted research + expert manual mapping
AI accelerates evidence discovery. For enforcement and litigation work, manual review and expert validation remain central to the final chart.
AI-assisted analysis
AI tools speed up evidence discovery and screening:
Manual claim analysis
Patent professionals review and validate each mapping:
AI accelerates evidence discovery. Expert manual analysis validates the final mapping.
Patent claim charting workflow
Nine steps from patent review to a structured, evidence-backed claim chart.
Patent review
Understand the patent, claims, specification, drawings, and prosecution history.
Claim selection
Identify the relevant independent and dependent claims for analysis.
Technology analysis
Understand the technical concepts and application areas the claims cover.
Target identification
Identify potentially relevant companies, products, processes, or technologies.
Evidence collection
Collect direct and indirect technical evidence from relevant sources.
Element-by-element mapping
Map each claim limitation against the identified product or technology.
Technical validation
Standards mapping, source code review, teardown, or reverse engineering where required.
Expert review
Review the chart for technical consistency, evidence quality, and mapping logic.
Final claim chart
Deliver a structured chart with supporting evidence and technical analysis.
The right chart for the objective
Charts are scoped by how deep the investigation goes and what they are mapped against.
Quick claim chart
Selected claims and readily available evidence for an initial infringement read.
Detailed claim chart
Comprehensive element-by-element mapping with evidence, explanations, and references.
Litigation-ready chart
Deeper analysis for enforcement and litigation, with extensive evidence and investigation.
Standard-based chart
Claim mapping against a relevant technical standard for SEP and standards analysis.
Product-based chart
Detailed mapping against a specific product, product version, or product family.
What you receive
The mapping and its evidence, packaged for analysis, review, or a courtroom.
Excel claim chart
Element-by-element mapping with evidence, sources, analysis, and conclusions.
Word report
Detailed charting report with supporting technical analysis and methodology.
PowerPoint summary
Executive view of claims, targets, key mapping findings, and evidence.
Evidence repository
Supporting documents, references, screenshots, and publications, systematically organized.
Why choose IIPRD for patent claim charting?
A strong chart does more than place claim language beside product information. It builds a defensible technical connection, element by element.
Patent + technical expertise
Claim charting that combines patent analysis with technical understanding of the technology.
Manual element-by-element mapping
Each element is reviewed individually, not just automated claim similarity.
Product-focused analysis
We analyze actual products, features, documentation, and implementation evidence.
Advanced technical investigation
Source code review, standards mapping, teardown, and semiconductor reverse engineering when needed.
Prosecution history review
We weigh amendments, arguments, and the scope of the granted claims.
Litigation & licensing support
Charts that support infringement analysis, enforcement, licensing, and monetization.