The Indian Patent Journal, explained

What each weekly issue contains

Early publication

Applications published ahead of the 18-month date because the applicant filed Form 9. Listed separately for the Delhi, Mumbai, Kolkata, and Chennai offices.

Publication after 18 months

Applications published automatically under Section 11A once 18 months have passed from the priority date. Publication opens the window for pre-grant opposition.

Weekly issued FER

Applications for which a First Examination Report was issued that week. Useful for tracking competitors' applications as they move into examination.

Grant of patents

Patents granted that week, published under Section 43(2). The one-year window for post-grant opposition runs from this publication.

Publication opens the pre-grant opposition window and grant publication starts the one-year post-grant window; our guide to patent opposition in India covers both.

Issues also carry other notices on patent proceedings. To see where a single application stands, use the Indian patent application status guide.

More IP India guides

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• How to check Indian patent application status

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• How to file a patent in India, step by step

  Every step from prior art search to grant, with the forms and deadlines at each one.

• Types of patent applications in India

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• Provisional vs complete specification in India

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• How to write patent claims: USPTO, EPO and India

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• Form 18: request for examination in India

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• How to respond to a First Examination Report (FER)

  The FER deadline, common objections, how to structure the reply, and the hearing.

• Indian patent timeline, from filing to expiry

  Each stage of an Indian patent with its statutory deadline, from filing to the end of the 20-year term.

• Types of patent searches, and which one you need

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• Patentability search: how to check novelty before you file

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• Freedom-to-operate search in the US and Europe

  In-force claims only, legal status checks at the USPTO, EPO and UPC, FTO opinions after Halo, and design-arounds.

• Invalidity search: prior art to challenge a patent

  IPR, PGR, EPO opposition and UPC revocation deadlines, prior art dates, standards documents and claim charts.

• Patent landscape analysis, step by step

  Building a CPC and keyword dataset, cleaning families and names, the metrics that matter and the 18-month publication lag.

• Google Patents search guide

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• The Cooperative Patent Classification (CPC), explained

  How CPC symbols are built, CPC against IPC, the Y section, how to find the right class and how to search it in each database.

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• The PCT application: timeline, fees and national phase

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• How much does a patent cost?

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• PCT national phase deadlines by country

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• Pre-grant and post-grant opposition in India

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All guides, by patent office