Invalidity / Validity Search: what the service is for
Deep forensic technical research engineered to uncover §102 novelty and §103 obviousness prior art to invalidate asserting competitor patents in litigation, IPR petitions, or licensing disputes. The practical purpose of this service is to test a granted patent against potentially relevant earlier disclosures and prosecution history. Patent research and technical analysis should be scoped around the claim, technology, dates, and jurisdictions that matter to the matter.
When this service is useful
The service can be used before a filing, during prosecution, as part of a product or brand decision, during a transaction, or when a dispute requires a well-organized technical record. The right depth depends on the question being asked. A focused assignment is generally more useful than a broad request that does not identify the decision, jurisdiction, date range, or evidence that matters.
Scope and review approach
The work starts by defining the subject matter and the boundaries of the assignment. For research matters, this normally includes relevant dates, jurisdictions, entities, technical terminology, classification concepts, and known references. For operational matters, it includes the matter record, source correspondence, procedural event, deadline rule, and required output. Findings are separated from assumptions so that the final material can be reviewed by counsel or the responsible business team.
What is examined
Prosecution History Forensics
Scrutinizing file wrapper estoppel, examiner interview summaries, and narrow arguments made during prosecution.
How the work is structured
01. File Wrapper Dissection. Analyze prosecution history to identify what the examiner missed and where the applicant conceded.
Typical deliverables
- Element-by-Element Invalidity Claim Chart
- Motivation-to-Combine Analysis (§103)
- File History (Prosecution History) Analysis
- Primary & Secondary Reference PDF Packages
Where it is commonly used
Patent Litigation Defense — Defense Counsel & Corporations. Build strong invalidity defenses to dismiss infringement lawsuits or negotiate favorable settlements.
Useful starting material may include the invention disclosure, claims, product specifications, prosecution history, trademark specimen, portfolio export, official correspondence, target jurisdictions, priority dates, known references, or a specific list of questions. If some information is missing, the scope should identify that limitation instead of filling gaps with assumptions.
Important review point
Research and operational support are decision-support services. They do not replace legal advice, a patentability or validity opinion, an infringement opinion, a trademark clearance opinion, or an official determination by a government office. Patent and trademark rights can depend on claim construction, evidence, procedural history, local law, and facts that may change over time. The final work should therefore be reviewed by the attorney or other qualified professional responsible for the matter.
Frequently asked questions
What is the difference between an Invalidity Search and a Patentability Search?
A patentability search checks if an invention can be patented. An invalidity search targets a specific granted patent and searches prior art predating its priority date to prove the patent should never have been granted.
