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Patent Litigation Teams
Prior-art discovery and claim-level evidence for disputes, case assessment and litigation preparation.
AI-NATIVE PATENT INVALIDITY INTELLIGENCE
Challenge Patent Validity With Better Prior-Art Evidence.
Find the prior art, technical disclosures and patent evidence that may matter when a patent’s validity is under challenge.
Hashi IP Solutions combines AI-powered patent discovery, semantic search, citation analysis, non-patent literature research, claim-level analysis and domain-expert review to identify evidence relevant to patent invalidity challenges.
India · USA · Europe · Global Patent Markets
The evidence journey
From Patent Claims to Invalidity Evidence
A focused search begins with what the claims require—not merely what the patent describes. Each stage connects technical discovery to traceable evidence.
- 01Patent
- 02Claims
- 03Search Strategy
- 04Prior Art Discovery
- 05Technical Mapping
- 06Publication Dates
- 07Claim Analysis
- 08Evidence
- 09Invalidity Intelligence
Patent → Claim → Prior Art → Evidence → Strategy
01 / DECOMPOSE
Patent & claims
Elements · limitations · relationships
Semantic discovery
Families & citations
Patent + literature
Dates & disclosures
03 / VALIDATE
Evidence for review
Claim mapping → expert validation → qualified counsel
Where searches fall short
A Patent Is Only as Strong as the Evidence Behind Its Claims.
A validity challenge needs more than similar documents. It needs the right disclosure, the right chronology and a clear account of how the evidence relates to the selected claims.
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Keyword-only searching misses technical disclosures
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Important evidence may sit outside patent databases
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Family records can obscure the earliest relevant publication
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Non-patent literature needs source and date verification
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Claims require element-by-element analysis
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Priority dates and publication dates are not interchangeable
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Foreign-language disclosures can be overlooked
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Retrieved references need technical interpretation
Support the decision
When Patent Validity Is at Stake, Evidence Matters.
Understand the technical basis of an asserted patent, investigate earlier disclosures and give your legal team an organized evidence foundation for its assessment.
- 01Patent Assertion
- 02Claim Analysis
- 03Prior-Art Search
- 04Evidence Review
- 05Claim Mapping
- 06Technical Assessment
- 07Legal Team Review
Hashi IP Solutions provides patent search, technical analysis and evidence-mapping services. Legal conclusions regarding patent validity should be made by qualified counsel based on the applicable jurisdiction and facts.
Who we support
Technical Evidence for Teams Making High-Stakes IP Decisions.
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IP Law Firms
Technical research for counsel-led validity opinions, IPR preparation and opposition proceedings.
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In-House IP Teams
Understand third-party patent claims affecting products, licensing decisions and competitive strategy.
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Technology Companies
Investigate potentially relevant prior art when responding to assertions or considering patent challenges.
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Licensing & Negotiation Teams
Evaluate the technical and documentary basis of claims before negotiating a licence or transaction.
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Pharma & Deeptech
Specialized scientific literature, patent families and technical disclosures interpreted in their domain context.
A different search model
From Patent Documents to Defensible Evidence.
Retrieval is the beginning. Claim context, chronology, source verification and expert interpretation determine whether a reference deserves deeper review.
Traditional Invalidity Search
- Keyword-led discovery
- Patent-database result sets
- Manual document review
- Large lists of potentially similar records
- Limited technical context
- Manual claim comparison
Hashi AI-Native Invalidity Search
- Patent and claim-focused technical decomposition
- Semantic discovery beyond literal terms
- Citation and family intelligence
- Patent plus non-patent literature
- Claim-element evidence mapping
- Evidence prioritization and expert validation
Our methodology
From Patent Claims to Prior-Art Evidence.
The scope is agreed around the patent, selected claims, technology, jurisdictions, relevant cut-off assumptions and intended legal-team use.
01
Patent & Claim Analysis
Understand the patent, independent and dependent claims, technical limitations and the matter's objectives.
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Claim Decomposition
Separate each claim into technical elements, relationships and limitations. Record alternative interpretations for counsel's review.
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Search Strategy
Combine keywords, classifications, citations, semantic concepts and technology-specific terminology around the claim elements.
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AI-Powered Prior-Art Discovery
Use AI-assisted and semantic retrieval to identify potentially relevant patent and non-patent disclosures beyond literal keyword matches.
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Patent Family & Citation Analysis
Trace families, continuations, divisionals, related applications and citations to locate earlier relevant publications.
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Non-Patent Literature Search
Investigate journals, standards, conference papers, manuals, whitepapers, theses, GitHub and arXiv where appropriate to the technology.
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Date & Public-Disclosure Analysis
Review publication chronology and available public-disclosure evidence. Flag uncertain dates, accessibility and source provenance for further review.
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Claim-Level Mapping
Map passages, figures and technical disclosures to claim elements. Make coverage, missing limitations and interpretive assumptions explicit.
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Expert Validation
Domain experts assess technical relevance, check source evidence, prioritize references and identify remaining search gaps.
Beyond similarity
Invalidity Search Goes Beyond Finding Similar Patents.
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Claim Intelligence
Independent and dependent claims, limitations, element relationships and technical interpretations.
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Prior-Art Intelligence
Patents, applications and public technical disclosures relevant to the selected claims.
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Citation Intelligence
Backward and forward citations, examination references and related technical disclosures.
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Family Intelligence
Families, continuations, divisionals and the earliest relevant published disclosure—not simply the earliest filing.
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Non-Patent Literature
Scientific papers, standards, manuals, conference material and other relevant public sources.
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Timeline Intelligence
Publication chronology, priority information, public availability and matter-specific cut-off assumptions.
Claim-level evidence
See What a Reference Discloses—and What It Does Not.
Pinpoint passages and figures make review more efficient. Missing limitations, interpretive assumptions and chronology questions stay visible rather than disappearing behind a relevance score.
| Claim Element | Prior-Art Reference | Disclosure | Publication Date | Evidence | Relevance |
|---|---|---|---|---|---|
| Element A · sensing input | Reference A | Input arrangement described | Source date to verify | Figure + paragraph | High relevance |
| Element B · processing relationship | Reference A | Relationship requires interpretation | Source date to verify | Method passage | Further review |
| Element C · control output | Reference B | Related control disclosure | Source date to verify | Technical section | Supporting art |
| Element D · specific limitation | Reference C | Limitation not established | Source date to verify | Disclosure gap | Low relevance |
Hypothetical elements and references show the review structure only. No actual patent, publication date or legal finding is represented. Live work records verified source details, cut-off assumptions and unresolved limitations.
Evidence prioritization
Turn Search Results Into Evidence Priorities.
Potentially relevant invalidity evidence is organized by technical relevance and review needs. These categories guide investigation; they are not legal conclusions.
High relevance
Strong technical disclosure closely aligned with one or more claim elements. Prioritize detailed source and chronology review.
Potential anticipatory reference
A single reference that may disclose the relevant claim elements and warrants detailed technical and legal review. Not an anticipation finding.
Supporting prior art
Technical disclosure that may contribute to an obviousness or inventive-step assessment, subject to counsel's legal framework.
Low relevance
Related technology that does not materially address the claim requirements. Record limitations rather than overstate its value.
What you receive
Every Invalidity Search Delivers Evidence, Not Just a Patent List.
Agreed deliverables preserve the connection between the claim, source disclosure and search assumptions, so your team can review the findings and pursue the next questions.
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Executive Invalidity Search Summary
Key findings, prioritized references, evidence limitations and areas for deeper review.
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Claim Chart
Element-by-element mapping with cited passages, figures and explicit disclosure gaps.
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Prior-Art Evidence Table
Reference details, publication chronology, technical relevance and supporting evidence.
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Search Strategy Report
Sources, queries, classifications, semantic concepts, cut-off assumptions and methodology.
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Patent Family Analysis
Related applications, family relationships and relevant publication chronology.
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Non-Patent Literature Dossier
Scientific, technical and industry disclosures with available source and date evidence.
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Citation & Reference Analysis
Backward and forward citations and connections to relevant technical disclosures.
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Evidence Package
Source documents and pinpoint passages, figures and claims for legal-team review.
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Editable Deliverables
PDF, Excel and other agreed formats suited to your team's review workflow.
AI + domain expertise
AI Finds the Signal. Experts Validate the Evidence.
AI accelerates discovery and organization. Domain experts remain accountable for technical interpretation, source checks and the evidence package that reaches your decision-makers.
AI-assisted discovery
Discover, search, cluster, extract, compare and rank candidate disclosures. Trace citations and identify technical relationships.
Domain-expert validation
Interpret disclosures, map claims, assess technical significance, verify sources, prioritize evidence and identify gaps.
Evidence for counsel
A traceable technical foundation with cited sources, explicit limitations and review priorities. Legal strategy and conclusions stay with qualified counsel.
Choose the right moment
The Earlier You Understand the Prior Art, the More Strategic Options You Have.
- 01Patent Assertion
- 02Initial Case Assessment
- 03Claim Construction
- 04Invalidity Investigation
- 05Litigation / Opposition / IPR
- 06Settlement / Licensing
- Before litigation
- After a patent assertion
- During IPR preparation
- During EPO opposition
- During patent opposition
- During licensing negotiations
- During M&A due diligence
- During portfolio review
- Before patent acquisition
- When evaluating competitor patents
Match the question to the search
Different IP Questions Require Different Search Strategies.
| Your IP question | Relevant service |
|---|---|
| What existed before my invention? | Prior Art Search |
| Is my invention potentially patentable? | Patentability Search |
| Which patent rights may affect commercialization? | Freedom to Operate Search |
| Could a specific patent potentially be challenged? | Patent Invalidity Search |
| What patents surround a technology? | Patent Landscape |
| How is a portfolio positioned? | Patent / Portfolio Analysis |
| What is changing in the technology or competitor landscape? | Patent Watch |
Technology-specific expertise
Prior Art Must Be Understood in Its Technical Domain.
Search terminology, source types and claim interpretation change across industries. We frame discovery around the actual architecture, scientific mechanism or technical relationship in question.
Semiconductors
Chip architecture, memory, packaging, RF, accelerators, EDA and power management.
Telecommunications
5G, 6G, NTN, RAN, wireless protocols, network architecture and standards-related technologies.
AI & Software
Machine learning, inference, computer vision, distributed systems and software architectures.
Medical Devices
Diagnostics, imaging, sensors, surgical systems and connected healthcare.
Pharmaceuticals & Biotechnology
Formulations, compositions, therapeutic methods, biologics and biotechnology processes.
Automotive
ADAS, sensing, autonomous driving, battery systems, BMS and vehicle electronics.
India + global markets
Patent Invalidity Search for India & Global Markets
Headquartered in Hyderabad, Hashi IP Solutions supports claim-focused technical research for global matters. Jurisdiction, relevant dates, language coverage and evidence requirements are agreed with your team; qualified counsel evaluates the applicable legal standards.
India · USA · Europe · Japan · Korea · China · Global Markets
Coverage and source-verification depth are tailored to the matter, rather than presented as a universal search guarantee.
Scope your search
Have a Patent You Need to Challenge?
Share a public patent identifier and non-confidential context. Our team can discuss the claims, technology, jurisdictions and evidence depth appropriate to your matter.
Your information is treated confidentially. NDA available upon request. Please do not include privileged communications or confidential invention details.
info@hashiip.comCommon questions
Patent Invalidity Search: Your Questions Answered.
What is a patent invalidity search?
A patent invalidity search is a structured investigation for prior art and technical evidence relevant to challenging a specific patent's validity. It combines claim-focused discovery, publication chronology and disclosure mapping to produce evidence for qualified counsel—not a legal validity determination.
What is the difference between an invalidity search and a prior art search?
An invalidity search is usually focused on selected claims of an existing patent in a challenge context. A general prior-art search may investigate an invention before filing or a broader technology area. The claim elements, relevant dates and evidence requirements make the invalidity scope distinct.
What is the purpose of an invalidity search?
It identifies potentially relevant evidence for litigation, opposition, IPR preparation, licensing and strategic IP review. Technical findings help counsel evaluate possible arguments, evidence gaps and further research; they do not establish a legal outcome.
Can an invalidity search determine whether a patent is invalid?
No. Hashi provides search, technical analysis and evidence mapping. Legal assessment belongs to qualified counsel, and a legal determination depends on the applicable law, facts and competent court or patent authority.
What sources are searched?
Sources can include patent publications, international families, citations, scientific literature, standards, technical publications and product documentation. Coverage is selected around the claim language, technical domain, relevant dates and matter requirements.
Can Hashi search non-patent literature?
Yes. Journals, standards, conference papers, whitepapers, technical manuals, theses, GitHub, arXiv and other appropriate sources can be investigated. Public availability, publication history and source provenance require separate review; a current web page alone does not prove historical disclosure.
How far back does an invalidity search go?
The relevant period depends on the claims, priority and publication history, jurisdiction and matter requirements. The search records agreed cut-off assumptions and distinguishes filing, priority, publication and public-access dates. Counsel assesses whether a reference qualifies as prior art.
Can you search foreign-language prior art?
Yes. International patent families and relevant foreign-language technical sources can be incorporated where appropriate. Language coverage, translation needs and verification requirements are agreed as part of the scope; material passages should be checked against their source.
Do you provide claim charts?
Yes. Prioritized references can be mapped element by element using cited passages and figures. Charts identify explicit disclosures, interpretive assumptions and missing limitations, and are provided for technical and legal-team review.
How long does an invalidity search take?
Timing depends on claim complexity, the number of claims, technology, jurisdictions, source coverage and evidentiary depth. Scope and schedule are agreed after reviewing the matter; there is no universal turnaround promise.
How much does a patent invalidity search cost?
Pricing is scoped to the patent, selected claims, technical complexity, jurisdictions, literature coverage and evidence requirements. Share a public patent identifier and non-confidential context so the team can discuss an appropriate engagement.
Can Hashi support patent litigation teams?
Yes. Hashi can act as a technical search and evidence-support partner for litigation, IPR and opposition teams. Legal strategy, claim construction, legal opinions and procedural decisions remain with qualified counsel.
Connected IP services
Bring the Right Intelligence to Your Next Decision.
Build your evidence foundation
Don’t Defend Against a Patent Without Understanding the Prior Art.
Start with a public patent identifier and non-confidential context. We can discuss the claims, technology, relevant dates and evidence depth your matter requires.
Patent → Claims → Prior Art → Evidence → Expert Review