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What is the difference between patent and trade secret?

09-Jan-2026
Patent

Answer By law4u team

1. Meaning and Nature A patent is a statutory right granted by the government to an inventor for a new invention that is novel, involves an inventive step, and is capable of industrial application. It gives the inventor an exclusive right to make, use, sell, and distribute the invention for a limited period, usually 20 years, in exchange for publicly disclosing the invention. In India, patents are governed by the Patents Act, 1970 and the rules made under it. A trade secret, on the other hand, is confidential business information that provides a competitive advantage because it is not known to the public or competitors. It may include formulas, processes, methods, designs, customer lists, marketing strategies, or manufacturing techniques. A trade secret is protected through confidentiality, not by registration. India does not have a specific statute for trade secrets, but they are protected under common law principles of equity, contract, and confidentiality, and also under Bharatiya Nyaya Sanhita, 2023 in cases involving theft of confidential information or breach of trust. 2. Method of Protection A patent requires formal registration with the Patent Office. The applicant must file a patent specification that fully describes the invention. Once granted, the patent becomes a public document, and anyone can read it. However, only the patent holder can commercially exploit it during its term. A trade secret requires no registration. It is protected as long as it remains secret and reasonable steps are taken to maintain its confidentiality. For example, companies use non-disclosure agreements (NDAs), restricted access, and confidentiality clauses to safeguard trade secrets. 3. Public Disclosure In a patent, public disclosure is mandatory. The inventor must reveal all technical details in the patent specification so that after the patent expires, the public can freely use the invention. The system works on the principle of a quid pro quo - the inventor gets temporary monopoly rights in return for public disclosure of the invention. A trade secret, however, is the exact opposite. The essence of a trade secret lies in keeping the information undisclosed. If the secret becomes public, protection is lost. Once revealed or reverse-engineered, anyone can use it freely because the protection depends entirely on secrecy. 4. Duration of Protection A patent has a fixed term - 20 years from the date of filing the application. After expiry, the invention falls into the public domain and can be used by anyone without permission. A trade secret has no fixed duration. It can last indefinitely, as long as the information remains secret and continues to have commercial value. For instance, the formula for Coca-Cola has been a trade secret for more than a century. 5. Legal Remedies for Violation In the case of patent infringement, the patent owner can file a civil suit for injunction, damages, or account of profits under the Patents Act, 1970. The infringement is determined by comparing the alleged infringing product or process with the claims in the patent. In the case of trade secret misappropriation, the aggrieved party can approach the civil court for injunction, damages, or breach of contract. If there is theft or dishonest misappropriation, criminal remedies under the Bharatiya Nyaya Sanhita, 2023 (such as breach of trust or theft of confidential information) can also be invoked. The Information Technology Act, 2000 may also apply where data or digital information is involved. 6. Risk and Control A patent provides strong protection backed by law, but the inventor loses control over secrecy because the invention is made public. Once the patent expires, anyone can use it. A trade secret allows the inventor or company to keep control without disclosing details to anyone, but the risk is that if the secret leaks, reverse-engineered, or independently discovered, protection vanishes immediately. 7. Examples Patent example: A new pharmaceutical drug formula invented and registered under the Patents Act. After 20 years, it enters the public domain and can be produced as a generic medicine. Trade secret example: The Coca-Cola formula, Google’s search algorithm, or a company’s unique manufacturing process kept confidential. 8. Choice Between Patent and Trade Secret The decision to protect an innovation as a patent or trade secret depends on the nature of the invention. If an invention can be easily reverse-engineered, patent protection is preferable, because secrecy will not last. If the invention cannot be reverse-engineered and can be kept secret for a long time (like a recipe, formula, or internal process), then trade secret protection is better. Companies often use a combination - they patent some aspects and keep others confidential as trade secrets. 9. Indian Legal Position While patents are fully codified under the Patents Act, 1970, India currently has no separate trade secret legislation. Courts have recognized trade secret protection under the principles of equity, contractual obligation, and breach of confidence. Indian courts have consistently held that if confidential information is shared under circumstances that impose an obligation of confidence, unauthorized use or disclosure amounts to a breach of trust and can attract both civil and criminal action. The Bharatiya Nyaya Sanhita, 2023, though not directly mentioning “trade secrets,” provides general provisions for criminal breach of trust (Section 316), cheating (Section 318), and dishonest misappropriation of property (Section 324) - all of which can cover theft or unauthorized use of confidential business information. Conclusion In essence, a patent is a public right granted for disclosure, while a trade secret is a private right preserved through secrecy. Patents provide limited-time monopoly with legal backing, while trade secrets offer potentially perpetual protection without registration - but only as long as secrecy is maintained. Both serve the purpose of encouraging innovation and protecting commercial interests, but they do so through entirely different legal mechanisms.

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