How to Register a Patent in India (Step by Step Process)
Complete guide on how to register a patent in India in 2026. Covers patent eligibility criteria, types of patents, step by step filing process at the Indian Patent Office, required documents, patent search, provisional and complete specification, examination, opposition, grant, costs, timeline, and maintenance of patent rights.
Documents Required
- Detailed description of the invention including the technical problem it solves
- Drawings, diagrams, or flowcharts illustrating the invention
- Claims defining the scope of patent protection sought
- Abstract summarizing the invention in 150 words or less
- Prior art search report showing existing patents and publications in the field
- Inventor declaration (Form 1) with name, address, and nationality of all inventors
- Power of Attorney (Form 26) if filing through a patent agent or attorney
- Statement and undertaking regarding foreign filing (Form 3) if applicable
- Proof of right to file (assignment deed) if applicant is different from inventor
Tools & Prerequisites
- Indian Patent Office e-filing portal (ipindiaonline.gov.in) for electronic filing
- Patent search databases: InPASS (Indian Patent Advanced Search System), Google Patents, WIPO PatentScope, and USPTO for prior art search
- Registered Patent Agent or Patent Attorney for professional drafting and prosecution
- Drawing software (AutoCAD, Visio, or any standard tool) for preparing patent drawings
- Document preparation tools for creating specification in the prescribed format
A patent is one of the most valuable forms of intellectual property protection available to inventors and businesses. If you have developed a new product, process, machine, or composition that solves a technical problem in a novel way, registering a patent gives you the exclusive right to commercially exploit that invention for 20 years in India. This guide covers the complete patent registration process in India for 2026, from determining patentability to filing, examination, opposition, grant, and maintenance. Whether you are an individual inventor, a startup, or an established company, understanding the patent system helps you protect your innovations and build competitive advantage.
The patent registration process in India is governed by the Patents Act, 1970 (as amended in 2005 and subsequently) and administered by the Indian Patent Office under the Controller General of Patents, Designs and Trademarks. The process involves multiple stages and typically takes 2 to 4 years, though startups can avail expedited examination to get patents faster. Let's walk through every step.
What Can Be Patented in India
Before investing time and money in a patent application, it is essential to understand what qualifies for patent protection under Indian law.
Three Requirements for Patentability
| Criteria | What It Means | How It Is Assessed |
|---|---|---|
| Novelty | The invention must be new and not disclosed anywhere in the world before the filing date | Prior art search in patent databases, scientific literature, and public disclosures globally |
| Inventive Step | The invention must not be obvious to a person with ordinary skill in the field | Comparison with closest prior art to determine if the advance is obvious or non-obvious |
| Industrial Applicability | The invention must be capable of being made or used in an industry | Assessment of whether the invention has practical utility and can be manufactured |
What Cannot Be Patented (Sections 3 and 4)
The following are specifically excluded from patentability in India:
- Inventions that are frivolous or contrary to established natural laws
- Inventions harmful to public health, morality, or the environment
- Mere discoveries of scientific principles or abstract theories
- Discovery of any living or non-living substance occurring in nature
- New forms of known substances without enhanced efficacy (Section 3(d))
- Substances obtained by mere admixture or rearrangement
- Methods of agriculture or horticulture
- Medical, surgical, curative, or therapeutic treatments
- Plants and animals (other than microorganisms)
- Mathematical or business methods
- Computer programs per se (pure software without technical effect)
- Literary, dramatic, musical, or artistic works (protected by copyright)
- Traditional knowledge
- Inventions related to atomic energy
Step 1: Conduct a Prior Art Search
A thorough prior art search before filing saves time, money, and effort by revealing whether your invention is truly novel.
Databases for Patent Searching
| Database | Coverage | URL |
|---|---|---|
| InPASS (Indian Patent Advanced Search System) | All Indian patents and published applications | ipindiaonline.gov.in |
| Google Patents | Worldwide patents with AI-powered similarity search | patents.google.com |
| WIPO PatentScope | International PCT applications from 157 countries | patentscope.wipo.int |
| USPTO Full Text | US patents and published applications | patft.uspto.gov |
| Espacenet | European and worldwide patents | espacenet.com |
How to Search Effectively
- Use keywords that describe the core technical features of your invention
- Search multiple synonym combinations as different inventors describe similar concepts differently
- Use IPC (International Patent Classification) codes to narrow your search to the specific technology area
- Review the cited references in relevant patents to discover additional prior art
- Search non-patent literature including scientific journals, conference papers, and technical publications
- Consider hiring a professional patent agent for a formal patentability search (costs 5,000 to 25,000 rupees) for a thorough assessment
Step 2: Draft the Patent Specification
The patent specification is the legal document that describes your invention and defines the scope of protection you are seeking. This is the most critical part of the patent process.
Components of a Patent Specification
- Title: A concise title describing the invention (typically 10 to 15 words)
- Field of the Invention: The specific technical field the invention belongs to
- Background: Description of existing technology, its limitations, and the problem your invention solves
- Object of the Invention: Clear statement of what your invention aims to achieve
- Summary: Brief overview of the invention and its key features
- Detailed Description: Complete technical explanation with examples, embodiments, and working methods that would allow a skilled person to reproduce the invention
- Claims: Numbered statements defining the legal boundaries of your patent protection. Independent claims provide broad protection; dependent claims add specific features
- Abstract: A 150-word summary of the invention for search and classification purposes
- Drawings: Technical illustrations showing the invention's structure, components, and operation
Step 3: File the Patent Application
Patent applications are filed electronically through the Indian Patent Office e-filing portal.
Types of Patent Applications
- Ordinary application: Filed directly at the Indian Patent Office as the first filing
- Convention application: Filed claiming priority from a patent application in another country (within 12 months)
- PCT national phase application: Entering India from an international PCT application (within 31 months)
- Divisional application: Split from a parent application that claims multiple inventions
- Patent of Addition: For improvements or modifications to an already patented invention
Filing Process
- Create an account on the e-filing portal at ipindiaonline.gov.in
- Fill in Form 1 (Application for Grant of Patent) with applicant and inventor details
- Upload Form 2 with the complete or provisional specification, claims, abstract, and drawings
- Fill Form 3 (Statement and Undertaking regarding foreign applications) if you have filed or plan to file in other countries
- Fill Form 5 (Declaration as to Inventorship)
- Upload Form 26 (Power of Attorney) if filing through a patent agent
- Select the applicant category for the correct fee schedule
- Pay the filing fee through the online payment gateway
- Submit and receive the application number and filing date
Patent Filing Fees
| Fee Type | Natural Person / Startup | Small Entity | Others (Companies) |
|---|---|---|---|
| Application Filing (Form 1) | 1,600 rupees | 4,000 rupees | 8,000 rupees |
| Complete Specification (up to 30 pages) | Included in filing fee | Included in filing fee | Included in filing fee |
| Each additional claim above 10 | 320 rupees per claim | 800 rupees per claim | 1,600 rupees per claim |
| Examination Request (Form 18) | 4,000 rupees | 10,000 rupees | 20,000 rupees |
| Expedited Examination (Form 18A - Startups) | 8,000 rupees | 25,000 rupees | 60,000 rupees |
| Early Publication (Form 9) | 2,500 rupees | 6,250 rupees | 12,500 rupees |
Step 4: Publication and Examination
After filing, the patent application goes through publication and examination stages.
Publication
Your patent application is published in the Official Patent Journal after 18 months from the filing date. Once published, the specification, claims, and drawings become publicly available. You can request early publication using Form 9 (for an additional fee) to get the application published within about 1 month. Early publication is useful for establishing your invention in the public domain quickly and for starting the examination process sooner.
Examination Request
The Patent Office does not examine applications automatically. You must file a Request for Examination (Form 18) within 48 months from the filing date. If you do not file this request, the application is deemed withdrawn. For startups, filing Form 18A for expedited examination can significantly reduce the waiting time for the First Examination Report.
First Examination Report (FER)
The Patent Examiner reviews the application and issues the FER listing all objections. You have 6 months (extendable by 3 months) to respond. The response phase involves:
- Analyzing cited prior art references and forming arguments for novelty and inventive step
- Amending claims to overcome prior art objections while maintaining meaningful protection
- Addressing subject matter objections with legal and technical arguments
- Correcting any formal deficiencies in the specification or forms
- Potentially requesting a hearing before the Controller for complex objections
Step 5: Opposition (If Any) and Grant
Pre-Grant Opposition
After publication, any person can file a pre-grant opposition under Section 25(1). The opponent submits a representation to the Controller detailing the grounds for opposition (prior art, lack of inventive step, non-patentable subject matter, etc.). The applicant must respond to the opposition with counter-arguments. The Controller considers both sides and decides whether to proceed with the grant.
Patent Grant
If all examination objections are resolved and no opposition is sustained, the Controller issues an order granting the patent. The grant is published in the Patent Journal with the patent number. The patent is valid for 20 years from the filing date subject to payment of annual renewal fees.
Post-Grant Opposition
Within 12 months of the patent grant publication, any interested person can file a post-grant opposition under Section 25(2). This is a more formal proceeding with an Opposition Board. If the post-grant opposition is successful, the patent can be revoked.
Maintaining Your Patent
Getting the patent granted is not the end, maintaining it requires ongoing attention.
Annual Renewal Fees
Renewal fees must be paid annually starting from Year 2 from the filing date. Fees increase progressively:
- Years 3-6: 800 to 2,400 rupees per year (natural person/startup)
- Years 7-10: 2,400 to 4,000 rupees per year
- Years 11-15: 4,000 to 6,000 rupees per year
- Years 16-20: 6,000 to 8,000 rupees per year
For companies, multiply these amounts by approximately 5 times. If you miss the renewal due date, a 6-month grace period is available with surcharge. After that, the patent lapses. Lapsed patents can be restored within 18 months by filing a restoration request with applicable fees.
Statement of Working (Form 27)
Patent holders in India must file Form 27 annually with the Patent Office disclosing whether and how the patent is being commercially exploited in India. This working statement is a legal requirement and non-filing can be used as grounds for compulsory licensing.
Patent Registration for Startups
Startups recognized under the DPIIT Startup India initiative enjoy significant advantages in pattern registration:
- 80 percent fee reduction on all patent filing, examination, and renewal fees
- Expedited examination through Form 18A to fast-track the entire process
- Patent facilitator scheme where the government reimburses patent agent fees
- Processing time reduced from 2 to 4 years to 12 to 18 months with expedited examination
If you haven't already, register your startup under the Startup India program before filing your patent application to avail these benefits. The Private Limited Company or LLP structure is preferred for startup patent filings as it provides a clear entity for IP ownership.
Patent vs Other IP Protections
Understanding when to use patents versus other forms of intellectual property protection:
| IP Type | What It Protects | Duration | When to Use |
|---|---|---|---|
| Patent | Inventions (how things work) | 20 years | Novel products, processes, machines, compositions |
| Trademark | Brand identity (names, logos, slogans) | Indefinite (renewable every 10 years) | Business names, product brands, logos |
| Copyright | Creative expression (code, text, art, music) | Lifetime + 60 years | Software code, content, designs, artistic works |
| Design Registration | Visual appearance (shape, pattern, ornamentation) | 15 years | Product aesthetics and visual design |
| Trade Secret | Confidential business information | Indefinite (as long as secret is maintained) | Formulas, recipes, processes not suitable for patents |
Timeline Summary for Patent Registration in India
| Stage | Normal Timeline | With Expedited Examination (Startups) |
|---|---|---|
| Prior art search and specification drafting | 2 to 6 weeks | 2 to 6 weeks |
| Filing to Publication | 18 months (or 1 month with early publication) | 1 month (with early publication) |
| Examination request to FER | 6 to 18 months | 1 to 3 months |
| FER response and prosecution | 6 to 12 months | 3 to 6 months |
| Grant decision | 1 to 3 months | 1 to 2 months |
| Total | 2 to 4 years | 12 to 18 months |
Related IP and Business Registrations
Businesses filing patents often need these related registrations:
- Trademark Registration to protect the brand name associated with the patented product
- Copyright Registration for protecting software code, documentation, and creative works
- Private Limited Company Registration to establish the legal entity that will own the patent
- LLP Registration as an alternative business structure for IP-driven ventures
- Startup India Registration for accessing patent fee discounts and expedited examination
- GST Registration for tax compliance on commercialized patented products
- MSME Registration for accessing government schemes and subsidies for innovation
Conclusion
Patent registration in India is a structured process that takes 2 to 4 years for regular applications, or 12 to 18 months for startups using expedited examination. The key steps are: assessing patentability of your invention, conducting a thorough prior art search, drafting a strong specification with well-crafted claims, filing at the Indian Patent Office, requesting examination, responding to the examiner's objections, and navigating any opposition proceedings. Once granted, the patent gives you exclusive commercial rights for 20 years, subject to annual renewal fees and working requirements.
The most important investment in the patent process is in the quality of your patent specification and claims. A well-drafted patent with strong claims is a powerful business asset; a poorly drafted one is an expensive piece of paper. Whether you are an individual inventor protecting a personal innovation or a company building a patent portfolio, professional assistance from a qualified patent agent or attorney is strongly recommended.
If you need help with patent search, specification drafting, filing, or prosecution, our team at IncorpX can connect you with experienced patent professionals and guide you through the complete process.
Frequently Asked Questions
What is a patent and what rights does it give?
What inventions can be patented in India?
What inventions cannot be patented in India?
What is the difference between a provisional and complete patent specification?
How much does patent registration cost in India?
How long does patent registration take in India?
What is a prior art search and why is it important?
Can software be patented in India?
What is the role of a patent agent or patent attorney in India?
What is patent publication and when does it happen?
What is a patent claim and why is it important?
What is patent examination and what happens during it?
What is the First Examination Report (FER) in patent registration?
What is pre-grant opposition in patent registration?
What is post-grant opposition in patent registration?
What is expedited examination for startups?
What is a Patent Cooperation Treaty (PCT) application?
What is a convention patent application?
How do I file a patent application online in India?
What are the annual renewal fees for maintaining a patent in India?
Can I patent an idea or concept in India?
What is the difference between a patent, trademark, and copyright?
What is compulsory licensing of patents in India?
What is patent infringement and how is it handled in India?
Can I patent a pharmaceutical drug or medicine in India?
What is a patent search and how do I conduct one?
What is the working requirement for patents in India?
What is a design patent versus a utility patent?
How do I file a patent application for a startup?
Can I file a patent application in multiple countries?
What happens after a patent expires?
What is a patent assignment and how does it work?
What is patent licensing and how does it work?
What is the patent prosecution highway (PPH)?
How do I protect my invention before filing a patent?
What is the patent evergreening controversy?
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