Skip to Content

Patent Filing in India

From prior-art search to grant and renewal — a complete, procedure-accurate walkthrough of every form, fee and statutory timeline under the Patents Act, 1970 and the Patent Rules, 2003.
13 July 2026 by
Patent Filing in India
Prathita Vyas

Filing a Patent in India: A Comprehensive Guide

Before You File

Filing a patent in India involves a structured legal process, not just a single act. Each stage evaluates the novelty, inventive step, and industrial applicability of an invention before granting exclusive rights. This guide breaks down the entire procedure into clear, sequential steps with exact forms, fees, and timelines.

Understanding Patentability Criteria

Under Section 2(1)(j) of the Patents Act, 1970, an invention must satisfy three conditions to qualify for protection:

  1. Novelty: The invention must be new and not disclosed publicly anywhere in the world before the priority date.
  2. Inventive Step: It must involve a technical advance that is not obvious to a person skilled in the relevant field.
  3. Industrial Applicability: It must be capable of being made or used in an industry.

Choosing Your Route

Types of Patent Applications in India

The right application type depends on the stage of your invention, your international filing plans, and any earlier application you wish to build on.

  1. Provisional Application
  2. Ordinary (Non-Provisional) Application
  3. Convention Application
  4. PCT International Application
  5. PCT National Phase Application
  6. Patent of Addition
  7. Divisional Application

The Filing Journey

Step-by-Step Filing Process

Ten sequential stages take an invention from a prior-art search through to a granted, enforceable patent and ongoing compliance.

  1. Conduct a Patent Search: A prior-art search analyses existing patents, published applications, and technical literature to confirm an invention is genuinely new. It strengthens claim drafting, surfaces infringement risk early, and avoids the cost of pursuing an unpatentable idea.

    • Google Patents
    • WIPO Patent scope
    • Pat Seer
    • Indian Patent Advanced Search
  2. Draft the Patent Specification: The specification defines the technical disclosure and the legal scope of protection. A provisional secures priority with a broad description and no claims; a complete specification is self-sufficient, with detailed disclosure and claims.

    • Form 2
    • Fees: ₹1,600 (individuals), ₹8,000 (companies)
    • Excess Fees: Each claim beyond 10 - ₹320 (individuals), ₹1,600 (companies); Each page beyond 30 - ₹160 (individuals), ₹800 (companies)
  3. File the Application: Applications are filed electronically at the Indian Patent Office portal. Core forms include:

    • Form 1: Grant request
    • Form 2: Specification
    • Form 3: Statement & undertaking
    • Form 5: Inventorship
    • Form 9: Early publication
    • Form 18: Examination request
    • Form 26: Power of attorney
    • Form 28: Startups & small entities
  4. Publication of the Application: The application is published 18 months after the priority date, unless early publication is requested via Form 9. This creates public notice, opens the door to pre-grant opposition, and establishes a record that can support investment and licensing.

  5. Pre-grant Opposition: After publication but before grant, any person may oppose on grounds such as lack of novelty, obviousness, or defective claims. The Controller considers the representation only once a request for examination has been filed.

  6. Examination: A request for examination must be filed within 48 months of the priority date. The examiner assesses the application against prior art, patentability, and compliance with the Act.

  7. Respond to the First Examination Report (FER): Objections in the FER must be answered within six months, or the application is deemed abandoned. Effective replies clarify the disclosure and amend claims where needed.


Patent Drafting & Filing
Understanding patent drafting, specification requirements, claim drafting, filing procedures, examination process, and best practices for obtaining strong patent protection under Indian Patent Law.