IP Guide · India

PCT National Phase Entry in India

PCT national phase entry in India: deadlines, translations, Form 1 filing, and prosecution. DuxLegis registered patent agents for international applicants.

Entering India from an international PCT application

PCT national phase entry in India converts an international application into an Indian patent application. Deadlines, translations, and formal documents must be correct or entry can fail.

DuxLegis manages national phase filing for foreign applicants and Indian companies that used PCT for global strategy, including coordination with US and other associates.

Key national phase requirements

Typical work includes verifying the entry deadline, preparing Form 1 and related forms, ensuring English specification and claims, and planning examination (Form 18 / expedited routes where eligible).

Claim amendments and voluntary amendments may be advisable before examination based on prior art known from the international phase.

Prosecution after entry

After national phase entry, Indian examination, hearings, and opposition practice apply. Annuities after grant must be budgeted for the twenty-year term.

DuxLegis serves clients across India through its offices and representative network in Mumbai, Navi Mumbai, Pune, Nagpur, Nashik, Aurangabad, Delhi, Ahmedabad, Indore, Chandigarh, Bengaluru, Hyderabad, Chennai, Kolkata, Visakhapatnam, Ernakulam, Thiruvananthapuram, and Valsad.

Frequently asked questions

What is the PCT national phase deadline for India?

Generally 31 months from the earliest priority date; confirm exact timing for your application with counsel.

Do foreign companies need an Indian patent agent?

Yes. Applicants without an Indian address for service typically appoint a registered patent agent.

Can claims be amended at national phase entry?

Voluntary amendments may be available; strategy depends on prior art and commercial claim scope.

Explore DuxLegis intellectual property services or speak with an intellectual property lawyer for guidance on your matter.