Introduction
Rising dialogues and recent trends relating to intellectual property has obligated specialists from distinct fields to ponder about the intricacies of Patent Law. Among these debates, there persist an underlying stereotype of dominance of law viz-a-viz patents. An image has been created in the general public with the narrative that the subject of patents is usually driven by the process of law, and the law governing it. Somewhere in the middle of those hectic sections of bare act, are the observations and suggestions of the technical experts of the concerned patent which makes it worth the value.
The assessment of the technology being used, the targeted audience, industrial utility, strategic patent mechanism, scope of the patent, competitors’ market etc. all goes with the law itself to create a diverse portfolio of patents that would be strategically beneficial. A patent’s primary purpose is to gain a significant advantage for a product over everyone else in the market working in the same domain and hence ROI plays an important role as the patent is as good as the returns on it. How should a product be patented? In what manner would it be more efficient? What is the future of the patent, viewing the emerging technologies such as AI? And, is it even worth it? How does all these factors actually turn to be highly technical and how does this effect the decisions of the experts would be looked upon further.
Technical Validation
There are several factors which are usually left behind on mere scrutiny through a legal perspective. Traditional legal due diligence focuses mainly on issues such as the chain of title and ownership, filing dates, maintenance fees, and formal validity, plain language interpretation from a legal perspective, existing licenses or encumbrances. Here comes the limitation of “only legal peered review of patents”. This would overlook the subtle technical weakness such as narrow claims, unsupported by specifications etc.
Patents foundation lies on how well its claims map to real-world technology, products, and prior art. Legal only review would rarely assess commercial relevance of the patent, meaning that the patent covers the company’s or the competitor’s current or future product. It would leave behind the depreciation caused by the emerging technology which means that the product would or would not have alternatives in the recent future. As a result, companies/individuals would waste their resources maintaining weak patents or miss opportunities to assert/ license strong ones. Over-reliance on legal review can lead to inflated portfolio valuations or unexpected litigation losses.
Components of Technical Due Diligence
Technical due diligence includes several evidence-based analyses such as:
- Claim Charting : It is breaking down each patent claim element and mapping it against the targeted company’s products, competitor products or industry standards. It also helps us determine whether any literal infringement or infringement under the doctrine of equivalents has been done in various cases. Subsequently, it suggests whether claims are broad enough to provide expressive protection or is it too vague or narrow to be useful.
- Invalidity Checks : For a patent to be registered, it must satisfy all the prerequisites of the patent which are novelty, non-obviousness and utility. This could only be done by the specialist of the concerned domain who could verify that the product satisfies the test of credibility. It also examines prosecution history for disclaimers or amendments that limit scope and evaluates susceptibility to post-grant challenges.
- Prior Art Mapping : It is the method by which a comprehensive search for earlier publications, products, patents, or public uses are done, that could anticipate or render obvious the claimed invention. Technical experts analyse similarities in structure, function, and result, going beyond keyword searches to conceptual mapping.
External Vendors
Individuals or companies usually lack this expertise for the purpose of an internal performance of these technical dues diligence. The gap is filled by IP consulting firms, technical due diligence experts, labs and etc to perform the intricate task for them, while acting as a catalyst to the already entrenched process. These firms accelerate the speed of the work, reducing the time consumed in the process of registering a patent. In order to perform it effectively as well as efficiently these entities use several models such as reverse engineering, where the already patented product is dissected to claim patent claim accurately, or Technical Modelling where different models are created to predict how inventions perform under different scenarios or how claims read on future technologies. In addition to these, specialized tools, analytics platforms, labs & testing facilities are also used to speed up the process.
Integrating Findings into Portfolio Strategy
The real power of technical due diligence lies in actionable insights that directly feed portfolio strategy. The retain & strengthen patent pulls high-value integration with strong technical support followed by continued maintenance, continuation filings, or international expansion in order to assert and enforce strong, infringed patents giving rise to strategic litigation or licensing campaigns. Meanwhile the abandon or prune are the weak or irrelevant patents that have significant cost savings on annuities and fees.
Patents with broad applicability but outside core business are subjected to out-licensing or sale to generate revenue. On the contrary, acquisition of certain patents to fill gaps, identifying white spaces or blocking patents are equally necessary to sustain the market. This creates a leaner, more aligned, and higher-value portfolio that supports business objectives like market entry, fundraising, or exits.
A quick wrap-up with an illustration would suffice the contentions made in this afore-mentioned blog. Manifesting a hypothetical representation, where a semiconductor company holds a portfolio of approximately 200 patents related to advanced chip cooling technology with other incidental products. Now a legal-reviewed case shows a clean title and no immediate issue however on the contrary a detailed technical analysis from an external expert via performing a chain charting against competitor products and a prior art mapping showed that several core patents have strong, broad claims supported by detailed embodiments and lab data. However, some of the families are vulnerable due to undisclosed similar work in academic papers. All these factors enhance the decisions made within the course of time of forming a patent. If it would all be dependent on the legal perspective, no innovation would either be new or old. It is the expertise of the domain specific experts with the technical due diligence which makes a clear distinction of whether an exclusive right must be given or not, and if so, how can it be maximized.
Author : Tanmay Singh, In case of any queries please contact/write back to us via email to [email protected] or at IIPRD
Endnotes / References
- The Patents Act, No. 39 of 1970, §§ 2(1)(j), 2(1)(ja), 3, 64 (India).
- Office of the Controller General of Patents, Designs & Trade Marks, Manual of Patent Office Practice and Procedure (Version 3.0, Nov. 26, 2019), https://ipindia.gov.in (last visited July 6, 2026).
- World Intellectual Property Organization (WIPO), Patent Drafting Manual (2d ed. 2022), https://www.wipo.int/publications/en/details.jsp?id=4654.
- World Intellectual Property Organization (WIPO), World Intellectual Property Indicators 2024, https://www.wipo.int/publications/en/details.jsp?id=4731.
- Robert C. Faber, Landis on Mechanics of Patent Claim Drafting (7th ed., Practising Law Institute 2023).
- Donald S. Chisum, Chisum on Patents §§ 1.01, 5.03 & 8.06 (LexisNexis, updated 2025).
- Graham v. John Deere Co., 383 U.S. 1 (1966) (establishing the framework for determining obviousness in patent law).
- KSR International Co. v. Teleflex Inc., 550 U.S. 398 (2007) (clarifying the standard for assessing non-obviousness and emphasizing a flexible approach to prior-art analysis).
- European Patent Office, Guidelines for Examination in the European Patent Office (2025), Parts G & H (Novelty, Inventive Step, and Claim Interpretation), https://www.epo.org.
- Organisation for Economic Co-operation and Development (OECD), Enquiries into Intellectual Property’s Economic Impact, in OECD Science, Technology and Innovation Outlook 2023, https://www.oecd.org/sti/