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I filed a patent application and now want to add a new feature. What are my options?

Amendment, a fresh application, a divisional or a patent of addition - which one is even possible depends on what you filed, its status, and whether the feature was already described.

Find these facts before choosing a route.

Moderate complexity - several routes or missing facts

Please review this with an advocate, patent attorney or registered patent agent before you act. Do not rely on this answer alone.

  • Application number, filing date and earliest priority date.
  • Type: provisional, complete, convention, or PCT national phase.
  • Current status on IP India's public search, and the date of any examination report.
  • Whether, and when, the application was published.
  • A copy of the specification exactly as filed, so the new feature can be compared with it.
  • Any public disclosure of the invention since filing, and any foreign filings.

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Educational guidance only - not legal advice. Do not rely on it. It cannot see your documents, your dates or the prior art, and those usually decide the answer. Laws, rules, forms, fees and deadlines change. Please review your situation with a qualified advocate, patent attorney or registered patent agent before you act or decide not to act.

Not sure whether this applies to your invention?

The honest answer usually needs someone to look at your actual disclosure, your timeline and the prior art. That is a conversation, not an article.