1. What Constitutes Prior Art?
Prior Art refers to any technical information made publicly available anywhere in the world before the filing date of a patent application. This includes granted patents, published patent applications, academic journal papers, conference proceedings, PhD dissertations, YouTube videos, GitHub repositories, and commercial product manuals.
2. Key Patent Databases & Tools
Professional patent searches require cross-querying multiple proprietary and public repositories:
- Google Patents & Espacenet: Broad full-text coverage of worldwide patent documents.
- InPASS (Indian Patent Advanced Search System): Essential for checking Indian patent applications and examination statuses.
- USPTO & EPO Databases: Detailed prosecution history and claim analysis in prime commercial jurisdictions.
- Non-Patent Literature (NPL): IEEE Xplore, ScienceDirect, PubMed, arXiv, and Google Scholar.
3. Leveraging IPC and CPC Classifications
Keyword searches alone miss crucial prior art due to varying terminology. Professional searchers rely heavily on International Patent Classification (IPC) and Cooperative Patent Classification (CPC) codes:
CPC Example: G06N 3/08 (Learning methods for neural networks) AND H04L 9/32 (Authentication protocols)
4. Formulating Advanced Boolean Search Strings
Effective search strings combine keywords, synonyms, truncation wildcards, and proximity operators:
((deep PRE/2 learn*) OR (neural NEAR/3 network)) AND (biometric* OR fingerprint) ANDNOT (cloud)
5. Forward & Backward Citation Mapping
Once a closely related landmark patent is discovered, searchers map its backward citations (prior patents it cited) and forward citations (subsequent patents that cited it) to uncover entire technology families.
6. Structuring a Prior Art Matrix
The final deliverable of a professional prior art search is a comparative Claim-Feature Mapping Matrix that tabulates each feature of the new invention against closest cited references, pinpointing novel differentiating aspects.
Frequently Asked Questions
VIGOORR's editorial and advisory practice comprises experienced patent attorneys, PhD research methodologists, senior academic editors, and corporate commercial counsels with decades of combined practice across international institutions.