Patent Registration in India: What Can and Can't Be Patented

Patent registration in India is open only to an invention that is new, involves an inventive step and is capable of industrial application, and that does not fall within the exclusions in sections 3 and 4 of the Patents Act, 1970. A granted patent lasts 20 years from the date of filing. This guide, written from our chambers in Jaipur, explains each test in plain terms.

Key Takeaways

• Three tests, all required: the invention must be novel, must involve an inventive step and must be capable of industrial application. Failing any one means no patent.
• Exclusions are separate: even a new, useful invention can be refused if it falls within sections 3 or 4 of the Patents Act, such as a mere discovery, a business method or a computer programme per se.
• Your own disclosure counts: publishing, selling or presenting the invention before an application is filed can damage novelty, so check before anything goes public.
• Eligibility is a pre-filing question: a patent is examined and granted, not simply "registered", so a candid self-assessment and a prior-art search come first.
• Term runs from filing: the 20-year term is counted from the filing date, not the grant date.

Patent Registration in India at a Glance

What Does Patent Registration in India Actually Protect?

A patent is an exclusive right that lets the owner stop others from making, using, selling or importing the invention without consent. It covers a technical solution, not an idea, a brand or a creative work. In India the right lasts 20 years from filing and applies only within India.

IP India describes a patent in these terms and states that the 20-year term runs from the date of filing. Because the clock starts at filing, time spent waiting for examination reduces the effective period of enforceable rights.

The word "registration" is common in everyday speech, but the statute speaks of the grant of a patent. An application is filed, published, examined against the criteria below, and granted only if it satisfies them. That is why eligibility matters before filing rather than after.

A patent is also territorial. An Indian patent gives no rights in another country, so inventors who plan to sell abroad need to think about foreign filings separately, within the time limits that the international framework allows.

What Are the Three Core Tests for Patentability?

An invention is patentable in India when it is novel, involves an inventive step and is capable of industrial application, and is not excluded by sections 3 and 4 of the Patents Act, 1970. All conditions must be satisfied together. Meeting two of the three is not enough.

IP India's basics of patents page lists these conditions, and the Cell for IPR Promotion and Management (CIPAM) gives the same three criteria in its guidance for inventors. The tests are applied by a patent examiner reading your claims against earlier publications and the statute.

Novelty: Has the Invention Been Disclosed Anywhere?

Novelty means the invention has not been made public anywhere in the world before the filing date. A published paper, an earlier patent, a product on sale, a website post or a conference talk can each count. The test looks at what is already available, not only at what exists in India.

The most common novelty problem is the inventor's own disclosure. A founder who demonstrates a prototype at a trade fair, posts a technical write-up or sells a first batch before filing may have created prior art against their own application. Indian law has limited grace provisions for some disclosures, but relying on them is risky and they should not be treated as a plan.

A practical novelty check has four parts:

• List every disclosure: note each date on which the invention was shown, described, sold or offered, and to whom.
• Search patent databases: use the public search on the IP India website, and look at foreign patent publications too.
• Search non-patent material: journals, theses, product manuals, catalogues and online listings are all prior art.
• Compare feature by feature: if a single earlier document shows every feature you plan to claim, the claim lacks novelty. If each reference shows only part, move to the inventive step question.

The pass mark is simple. If you cannot find any single earlier source that discloses everything you want to claim, novelty is arguable. If you find one, either narrow the claim to what is actually different or reconsider filing.

Inventive Step: Is the Advance Non-Obvious?

An inventive step is a feature that makes the invention a non-obvious advance over what was known, either technically or in economic significance. The question is whether a person skilled in the field, reading the earlier publications, would have reached the invention without real creative effort.

This is usually the hardest test. An invention can be new in the narrow sense, because nobody has combined these exact parts before, and still be obvious if the combination is a predictable step. Examiners often combine two or more earlier documents to argue that the step was obvious.

Ask these questions of your own invention:

• What problem does it solve, and how did people solve it before?
• What is the technical effect of your solution, such as higher efficiency, lower failure rate or a new function?
• Would a skilled person have been pushed toward your solution by an existing document?
• Is there a result that would have been unexpected given what was known?

A clear, documented technical effect helps. A change that is only cosmetic, or a straightforward swap of one known material for another with the expected result, tends to be weak on this test.

Industrial Application: Can It Be Made or Used in Industry?

Industrial application means the invention can be made or used in some kind of industry. The test is about practical usability, not commercial success. An invention that works only on paper, or that contradicts established natural laws, does not meet it.

For most inventors this is the easiest test to pass. A device, a process, a composition or a method of manufacture that can be repeated and produces a consistent result will generally satisfy it. The usual difficulty is not the concept of "industry" but the description. The application must explain the invention clearly enough for a skilled person to carry it out.

What Cannot Be Patented in India?

Several kinds of subject matter cannot be patented even if they look new and useful. Sections 3 and 4 of the Patents Act, 1970 list them, including frivolous inventions, mere discoveries, business methods, computer programmes per se, methods of medical treatment and inventions relating to atomic energy.

The full text sits in Chapter II of the Act, titled "Inventions not patentable", which contains sections 3 and 4 (section 5 now stands omitted, so confirm against the current consolidated text). Section 3(d) deals with new forms of known substances and section 3(k) with computer programmes per se.

You can read it in the consolidated Act on the IP India website, and WIPO Lex also hosts the Patents Act, 1970. The groups below summarise the main categories in plain language. The statute's own wording controls.

Inventions Contrary to Law, Morality or Natural Laws

Section 3 starts with inventions that are frivolous or claim something obviously contrary to well-established natural laws, such as a machine said to produce more energy than it takes in. It also excludes inventions whose primary or intended use would be contrary to law or morality or injurious to public, animal, plant or environmental health.

Discoveries, Known Substances and Simple Arrangements

• Discoveries: the discovery of a scientific principle, or of something that already exists in nature, is not an invention.
• New forms of known substances: a new form of a known substance does not qualify unless it shows a significantly enhanced efficacy. This is the provision most often raised in pharmaceutical applications.
• New uses and simple mixtures: the mere new use of a known substance, or a simple mixture that only adds up the properties of its parts, is excluded.
• Rearrangement: the mere arrangement, rearrangement or duplication of known devices, each working in its own known way, is excluded.

Methods, Schemes and Computer-Related Subject Matter

• Business and mathematical methods: a mathematical or business method is excluded, as are algorithms.
• Computer programmes per se: a computer programme on its own is excluded. Software combined with hardware to give a technical effect is assessed differently, and the line is argued case by case.
• Mental acts and games: a mere scheme, rule or method of performing a mental act or playing a game is excluded.
• Presentation of information: the way information is presented is not patentable.

Founders building software products can read more in our note on patent protection for software startups in India, which looks at how computer-related inventions are treated.

Medical, Agricultural and Biological Subject Matter

• Treatment methods: processes for the medicinal, surgical, curative, prophylactic or similar treatment of humans or animals are excluded.
• Agriculture and horticulture: methods of agriculture or horticulture are excluded.
• Plants and animals: plants and animals in whole or in part, including seeds, varieties and species and essentially biological processes for producing them, are excluded. Microorganisms are treated differently.
• Traditional knowledge: an invention that is in effect traditional knowledge, or an aggregation or duplication of known properties of traditionally known components, is excluded.

Other Exclusions, Including Section 4

Literary, dramatic, musical or artistic works are excluded from patent law, because copyright is the relevant right for them. The topography of integrated circuits is also excluded. Section 4 separately bars patents for inventions relating to atomic energy.

These categories overlap with other forms of protection. A creative work, a product's shape or a brand name will usually belong under copyright, designs or trade marks instead. Our overview of patent agents and patent attorneys in India explains who may prepare and prosecute a patent application.

How Can You Check Eligibility Before Filing?

Check eligibility by testing the invention against each statutory criterion in order: exclusions first, then novelty, inventive step and industrial application, using a documented prior-art search. Decide to file only if every test is passed on the evidence you hold. A weak result is a reason to revise or pause, not to file anyway.

The sequence below is a self-assessment checklist. It does not replace independent legal advice on your own facts.

1. Write the invention in one paragraph. State the problem, the solution and the technical effect. If you cannot describe a technical effect, the invention may be an idea or a business method.
2. Screen against sections 3 and 4. Read the exclusions and mark any that could apply. If your invention is mainly a method of doing business, a scientific discovery or a treatment method, stop and reassess. If software is involved, identify the hardware or technical process it controls.
3. List your own disclosures. Record every demonstration, publication, sale or investor pitch with its date. Keep the invention confidential until a decision on filing is made.
4. Run a prior-art search. Use IP India's public search and foreign databases, and search journals and product literature. Save the results with search terms and dates.
5. Compare and map differences. For the closest three or four documents, write down what each lacks compared with your invention. Passing mark: at least one real, technical difference that produces a useful effect. Walk-away mark: the difference is cosmetic or obvious.
6. Confirm industrial use. Be able to say how the invention would be made or used in an industry and to describe it in enough detail for repetition.
7. Decide where to file. The appropriate patent office depends on where the applicant resides, is domiciled or has a place of business, or where the invention originated. IP India explains this on its jurisdiction page.

If a check fails, there are three sensible responses. Narrow the claim to the feature that is genuinely new, improve the invention until the technical effect is clearer, or choose another form of protection, such as a design, copyright, trade mark or trade-secret approach.

After eligibility is settled, the next stage is the filing itself. Our guide to the patent application procedure in India walks through publication, examination and grant.

Decision Table: What Each Result Means for Your Next Step

A Worked Hypothetical: Two Inventions, Two Outcomes

The following example is hypothetical and does not describe any real client or matter.

Suppose a Jaipur manufacturer develops a valve for an irrigation pump. It uses a new internal channel shape that reduces clogging when the water carries silt. Before filing, the owner shows the prototype to two dealers under no confidentiality terms and posts a short video online.

On the checklist, the valve is not within sections 3 or 4, and it can plainly be made and used in industry. The two risks are novelty, because of the dealer demonstrations and the video, and inventive step, because similar valves exist with other channel shapes.

The owner would need to document the dates, search for earlier valve designs, and be ready to explain the technical effect of the channel shape. The disclosures may already have harmed the position, which is why they are listed first.

Now suppose a second founder wants protection for a mobile app that ranks local vendors using a scoring formula. The core of the idea is a mathematical method and a business method, run as a computer programme.

Unless the application can point to a specific technical effect beyond running the formula on a computer, it is likely to meet the section 3 exclusions. Copyright in the code, and a trade mark for the app name, may be more suitable routes for that founder.

Common Misunderstandings Among First-Time Applicants

• "An idea is enough." A patent needs a described, workable invention with a technical effect. A concept without a way of carrying it out is not patentable.
• "A new combination is automatically inventive." Novelty and inventive step are separate tests. Obvious combinations of known elements often fail the second.
• "Filing in India protects me abroad." It does not. Each country grants its own rights.
• "Registration is a formality." Applications are examined, and examiners raise objections on novelty, inventive step and the section 3 exclusions. Clear drafting from the start reduces avoidable objections.
• "A product I sold last year can still be patented." Public sale can be prior art. Check dates before assuming anything.

One question is not settled by any checklist. Where software and hardware are combined, Indian practice on what counts as more than a computer programme per se has developed through Patent Office decisions and court judgments, and borderline cases remain argued. Treat any software-related eligibility view as provisional until it is tested against the specific claims.

Our principal advocate is a Registered Patent Agent with over ten years in patent searching, filing and prosecution. Drafting and search quality are, in that experience, where many eligibility problems first show up, which is why the checklist above puts documentation ahead of filing. This remains general education and not advice on any particular invention.

Frequently Asked Questions

What is the procedure for grant of a patent in India?

The procedure runs from filing an application, through publication, a request for examination and examination by the Patent Office, to a response to any objections and, if the requirements are met, grant. Eligibility under the three tests and sections 3 and 4 is assessed during examination.

The steps are: file the application with the specification at the appropriate office; wait for publication; file a request for examination within the period the Patents Rules allow (check the current Rules for the 48-month window from filing or priority date); answer the examination report; then grant.

The fee schedule is in IP India's published fee table, which you should check for the current amounts. The Manual of Patent Office Practice and Procedure sets out the steps in detail.

Can I file a patent application without a prior-art search?

Yes, the law does not make a prior-art search a precondition to filing. Searching first is still sensible, because it shows whether novelty and inventive step are realistic before the application is published and examined, and it helps the applicant draft claims that stay clear of earlier documents.

How do I use the IP India public search?

IP India provides public search tools on its website for published patent applications and granted patents. Searching by keyword, applicant, inventor or classification can reveal earlier filings. Record the search terms and dates, and remember that unpublished applications will not appear, so a clean result is not proof of novelty.

Can a startup in Jaipur file at a local patent office?

The appropriate patent office depends on the applicant's residence, domicile or place of business, or where the invention originated, not on where a lawyer is located. IP India's jurisdiction page lists the territorial split, and applicants should confirm the office that covers their address before filing.

Do I need a patent agent to apply?

An applicant may file on their own, and patent agents registered under the Patents Act may prepare and prosecute applications on behalf of others. Whether to engage one is a personal decision that depends on the invention's complexity and the applicant's familiarity with claims drafting and examination.

Further Reading and Official Resources

For primary material, start with the Patents Act, 1970 and the IP India pages on patent basics and jurisdiction, both linked above. CIPAM's patent pages offer a short introduction for first-time inventors, and the Patent Office manual covers procedure.

Eligibility depends on the specific facts, drawings and claims of each invention, so a reader should take independent legal advice on their own position before any filing or public disclosure.

This content is published for general information only. It is not legal advice, an advertisement, or a solicitation of work, and reading it does not create an advocate-client relationship. In keeping with the Bar Council of India Rules, Riva Legal Associates does not solicit work or advertise.