Green tech and clean energy innovations are no longer “optional extras” for the Indian economy—they are central to India’s climate commitments, energy security, and long-term industrial growth. As an intellectual property rights (IPR) law firm working closely with startups, academic researchers, and large-scale clean-energy developers, we have seen how mismanaged IP can stall or even kill a promising climate innovation. Industry must understand why green tech and clean energy patents matter in India, what the data tells us, and how to protect climate-related inventions in a practical, India-centric way.
Why Green Tech Deserves Strong IP Protection
“Green tech” or “climate-tech” is not just a marketing label; it covers a broad spectrum of inventions that reduce emissions, improve energy efficiency, or use renewable sources. These include solar-cell architectures, wind-turbine optimisation systems, battery-management algorithms, hydrogen-based processes, carbon-capture configurations, and even software-driven smart-grid or micro-grid control systems.
Global experience shows that patents in environmental technologies are mostly closely linked to higher renewable-energy use and better energy efficiency. For instance, a 2024 study on OECD countries found that a 1% increase in environmental-technology patents is associated with a measurable rise in renewable-energy consumption and energy-efficiency gains, confirming that IP-protected innovation directly feeds into cleaner-energy transitions.
In India, a similar pattern is apparent, though the raw numbers are still catching up with global leaders. Between 2016–17 and 2021–22, the Indian Patent Office granted over 91,500 patents, of which about 61,186 (well over half) were for green technologies. This means that, in practice, nearly every second patent issued in India during this period is related to waste management, renewable generation, or energy-efficiency systems. That is not a niche—it is becoming the normal face of Indian innovation.
What Does the Patent Data From India Tell us?
According to analyses of Intellectual Property Office (IPO) data, roughly 63% of India’s green patents are in waste management technologies, including waste-to-energy, plastic recycling, and organic waste treatment. Around 26% fall under “alternative energy production”, covering solar, wind, biomass, and hybrid-renewable systems. The remaining share is split between energy-conservation devices, cleaner-transport technologies, nuclear-energy systems, and niche applications in agriculture and forestry.
In the Indian automotive sector, clean-patenting activity—especially in electric-vehicle and related technologies—has been rising steadily, while patents on internal-combustion-engine components have declined. This mirrors India’s policy push toward EVs and renewable-intensity transport, but also shows that companies are now actively protecting their battery-pack designs, thermal-management systems, and charging-control architectures through patents.
It may be worth noting that India still lags behind in some core sub-domains of renewable energy. For example, one recent analysis of alternative-energy patents filed between 2004 and 2024 found that the number of filings dropped sharply in the later period, even as global clean-tech patenting continued to grow. This suggests that local players may be underutilising the patent system, either because they do not see IP as strategic, or because they lack the technical-and legal support to navigate the filing and examination process.
How the Indian Patent System Supports Green Tech
India has consciously aligned its IP framework with climate-policy goals. The most direct example is the Indian Patent Office’s “green-patent” fast-track scheme under Rule 24C of the Patents Rules, which allows expedited examination of applications relating to renewable energy, alternative-fuel vehicles, and other climate-friendly technologies. Data from 2024 show a noticeable uptick in requests for such expedited examinations, indicating that innovators and firms are beginning to recognise this route as a way to reduce uncertainty and get to market faster.
India’s broader patent law architecture—priority filing, working requirement obligations, compulsory licensing provisions, and exceptions for experimental use—can be calibrated to serve green tech developers. A well-drafted patent can secure the right to commercialise a lab-scale climate innovation, either through licensing or a spin-off entity. Also, joint research projects between universities, public-funded labs, and private partners can be structured so that IP ownership and revenue sharing are clearly defined, reducing later disputes and delays.
From a policy perspective, a 2024 study on environmental technology patents in OECD economies found that stronger patent protection in these areas tends to correlate with higher levels of renewable energy deployment and energy efficiency. While India’s context is not identical, the underlying principle holds: when innovators see that their climate-related inventions can be protected, they invest more in R&D and scaling.
Tackling the “IP–Climate” Tension: Monopolies vs Access
Critics often ask whether strong IP in green tech can restrict access to climate-friendly technologies, especially in developing countries. “Corporatisation of the climate” underlines this concern: if too much of the patent landscape is held by a few large multinationals, it can raise barriers for local innovators and smaller players. In practice, however, the Indian patent system offers tools to balance exclusive rights with public-interest goals. Innovative options, including Compulsory licensing, Tiered licensing strategies, Patent pooling, and cross-licensing arrangements, are available in India.
Here are some concrete, India-specific recommendations that can help firms frame their IP strategy:
- Early awareness of “green” classification: The Indian Patent Office and global systems now have specific “green” or environmental-technology classifications. Aligning your invention with these categories can improve your chances of being treated under the fast-track scheme and make it easier to benchmark your patent portfolio against competitors and policy-funded schemes.
- Protecting against premature disclosure: Public disclosures—conference posters, pilot-project reports, or even social-media posts—can jeopardise novelty in India and abroad. For climate-tech teams, it is often useful to file a provisional application before presenting results at conferences and to use non-disclosure agreements (NDAs) with partners, especially when sharing detailed technical data or prototypes.
- Think of the system, beyond “product” patents: Many green-tech innovations are not just hardware devices; they are systems, methods, and software-driven control architectures. In India, while pure software “per se” is not patentable, technical-effect-generating software (for example, an algorithm that optimises solar-plant output or grid balancing) can often be claimed as part of a system or method of operation.
- Adopt an international filing strategy: India-based developers rarely operate in isolation. The global patent database shows that filings under the PCT system for green energy and energy efficiency technologies roughly doubled between 2006 and 2020, reflecting strong international competition. For Indian innovators, this means using the Indian filing as the priority for a PCT application that can provide a window of up to 30/31 months to decide in which countries to seek protection.
Conclusion
Green tech and clean energy patents are not merely technical documents; they are policy instruments. A 2024 environment-technology-patents study suggests that patent activity can be a leading indicator of how quickly renewable-energy systems are adopted and improved. From our experience, the most successful climate-innovation ecosystems in India are those where: researchers understand basic IP concepts (novelty, inventive step, enablement), law firms see themselves as “innovation partners”, not just document-drafters and Industry players design R&D roadmaps with an eye on freedom-to-operate and patent-clearing strategies. To protect green technologies in India, these reforms are imperative. Every genuine climate innovation must be protected in a robust, enforceable, and aligned manner with India’s decarbonisation goals. Operators in this space need to appreciate that IP due diligence should be treated as seriously as technical or financial due diligence. In the battle against climate change, good patents are not the enemy of access; they are often the secure bridge that lets an innovation move from lab to land, and from idea to impact. Understanding the patent regime that covers this ecosystem can accelerate practical deployments and also help amplify the impact of innovation.
About MAHESHWARI & CO.
MAHESHWARI AND CO. is a full-service Law Firm that represents its clients in a number of complex and high-value transactions. The firm works across four principal practice areas, Intellectual Property Rights, Corporate Law, Taxation and Litigation.
The Firm is well positioned to help inventors leverage the IP Regime in India, aiming to accelerate and strengthen IP protection for its clients. As a trusted legal partner offering end-to-end IP services, the firm can guide clients through the complex procedural and substantive requirements of IP Protection in India and Internationally with alacrity and prompt efficiency.
Author: Akshi Seem, Associate Partner
Co- Author: Aditya Narayan, Intern
