Every tool in this hub is built on official Indian Patent Office and CGPDTM data — giving you accurate fee estimates and classification guidance without any guesswork.
Use our calculators and search tools to plan filings, budget renewals, and classify trademarks with precision.
Estimate official government fees for patent filing in India based on your applicant category, claim count, and specification length — before you submit your application.
Plan your 20-year patent lifecycle by calculating statutory renewal fees year by year — helping you avoid unintended lapses and budget for long-term maintenance.
Determine official PCT filing fees and automatically track the critical 31-month national phase entry deadline for India — ensuring full statutory compliance.
Identify the correct Nice Classification class for your goods or services using accepted IPO descriptions — ensuring accurate trademark filing from the start.
Track every statutory deadline in Indian patent prosecution, from provisional filing to renewal and restoration, verified against the gazette text of the 2024 amendment rules.
Intepat offers a growing set of free IP tools including a Patent Filing Fees Calculator, Patent Renewal Fees Calculator, PCT National Phase Calculator, Trademark Class Search Tool, and Patent Deadline Tracker. All tools are built on official Indian Patent Office (IPO) and CGPDTM data and are free to use without registration.
A free, searchable reference of every statutory timeline in Indian patent prosecution under the Patents Act 1970 and the Patents Rules 2003, as amended by the Patents (Amendment) Rules 2024. It flags hard, non-extendable deadlines and states the extension route and fee for the rest.
The tracker states the legal position as on the date shown in its version chip and is verified against the gazette text of each amendment. It is updated whenever the Patents Rules change.
Yes. All tools on this page are completely free and require no registration or login. They are built on official Indian Patent Office and Trade Marks Registry fee schedules and are updated whenever government fee rules change.
No. All calculators on this page reflect only official government fees payable to the Indian Patent Office or the Trade Marks Registry. Professional fees for drafting, filing, prosecution, and legal advice are separate and vary by case complexity. Contact Intepat for a complete quote — typically provided within 24 hours.
The calculators are based on official fee schedules published by the Indian Patent Office and CGPDTM. They are updated promptly whenever the government revises fee rules — including significant changes such as the Patents (Amendment) Rules 2024. The Patent Filing Fees Calculator and PCT National Phase Calculator currently reflect the IPO 2026 fee schedule.