Compare Indian patent law, side by side
Side-by-side answers to the questions that cause the most expensive confusion in Indian patent practice. Each page has a comparison table, a worked Indian example showing the distinction actually biting, and links to the exact provisions.
Section 3(d) vs Section 3(k): Two Very Different Patent Bars
Section 3(d) blocks new forms of known substances without better efficacy. Section 3(k) blocks maths, business methods and software per se. Compare both.
Pre-Grant vs Post-Grant Opposition in India: Which Route Applies
Pre-grant opposition is open to any person before grant. Post-grant opposition is for a person interested within 12 months of grant. Compare both routes.
Provisional vs Complete Specification: What Each One Does
A provisional specification secures a date and needs no claims. A complete specification defines the monopoly. Compare contents, timing and consequences.
Patent vs Design vs Trademark vs Copyright: Which Right Protects What
Four Indian IP rights, four different jobs. Compare what a patent, a design, a trademark and a copyright protect, how they arise and how long they last.
Revocation vs Opposition: The Routes to Attack an Indian Patent
Opposition runs before the Controller within fixed windows. Revocation runs in the High Court for the life of the patent. Compare forum, timing and grounds.
Convention Route vs PCT Route: Filing Abroad From India
The convention route means separate national filings within 12 months. The PCT route buys time to 31 months. Compare cost, timing and country coverage.
Divisional Application vs Patent of Addition: Which One Do You Need
A divisional splits an application that claims more than one invention. A patent of addition covers an improvement on your own patent. Compare both.
Assignment vs Licence: Transferring and Sharing Patent Rights in India
An assignment transfers ownership of a patent. A licence permits use while ownership stays put. Compare writing, registration, suing rights and reversion.