Step-by-Step Guide to Filing a Utility Patent in Mumbai, India

STEP 1: Determine Patentability

Before filing, confirm that the invention meets these basic patentability criteria:

  • Novelty – Not disclosed anywhere in the world.

  • Inventive Step (Non-obviousness) – Not obvious to a person skilled in the art.

  • Industrial Applicability – Must be capable of industrial use.

  • Not excluded under Section 3 and 4 of the Indian Patent Act (e.g., abstract ideas, mathematical methods, etc.).

It is advisable to do a prior art search to check for similar patents globally (use WIPO Patentscope, Google Patents, and the Indian Patent Advanced Search System).


STEP 2: Drafting the Patent Specification

  • Provisional Specification (optional): Allows you to secure a priority date while giving you 12 months to file a complete specification.

  • Complete Specification: Required for full examination. Should include:

    • Title

    • Field of invention

    • Background and prior art

    • Detailed description

    • Claims (most important)

    • Abstract

    • Drawings (if applicable)

 It’s strongly recommended to have a registered patent agent draft this.


STEP 3: Filing the Patent Application

You can file either:

  • Offline at the Mumbai Patent Office (Bandra Kurla Complex), or

  • Online via the IP India website (requires digital signature).

Forms Required:

Form No. Description Fee (Natural Person/Startup/Individual)
Form 1 Application for Grant of Patent ₹1,600
Form 2 Provisional or Complete Specification Included in Form 1
Form 3 Statement and undertaking (foreign applications) Nil
Form 5 Declaration of Inventorship Nil
Form 18 Request for Examination (can be filed later, but must be within 48 months) ₹4,000
Form 26 Authorization of Patent Agent (if appointing one) Nil

STEP 4: Publication of Application

  • Application is automatically published 18 months from the filing date or priority date.

  • Early publication can be requested with Form 9 (fee ₹2,500).

  • Once published, patent rights are retrospectively effective from this date (but enforceable only after grant).


STEP 5: Request for Examination (RFE)

  • File Form 18 to request examination (within 48 months of filing).

  • Patent Office assigns an examiner who issues a First Examination Report (FER).


STEP 6: Responding to Examination Report

  • You (or your patent agent) must respond to objections within 6 months, extendable by 3 months.

  • Most applications face 1–2 rounds of FER before acceptance.


STEP 7: Grant of Patent

  • Once the examiner is satisfied, the patent is granted, and the details are published in the Patent Journal.

  • Patent is valid for 20 years from filing date (subject to annual renewal fees).


COST ESTIMATE (Indicative, Natural Person/Startup Rates)

Stage Government Fee Agent/Attorney Fee (Approx.)
Drafting Provisional Specification ₹25,000 – ₹35,000
Filing with Provisional ₹1,600 ₹5,000 – ₹10,000
Drafting Complete Specification ₹35,000 – ₹70,000
Filing Complete Specification Included above ₹15,000 – ₹20,000
Request for Examination (Form 18) ₹4,000 ₹5,000 – ₹10,000
Responding to FER ₹20,000 – ₹50,000
Grant Formalities ₹5,000 – ₹10,000

Total Cost Estimate (all inclusive):

  • Self-filed: ₹8,000 – ₹10,000 (excluding drafting help)

  • With patent agent: ₹80,000 – ₹1,50,000 (depending on complexity and agent fees)


Additional Tips

  • File Form 28 to claim "startup/individual" status for reduced fees.

  • If invention was made by a student, check eligibility under Startup India for additional benefits.

  • Protect your IP confidentiality before filing (no public disclosure, even at college projects or exhibitions).

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