IP Resources · India

Intellectual Property Glossary

Plain-language definitions of intellectual property terms under Indian law. Educational resource from DuxLegis intellectual property lawyers.

Core IP rights

Filing & process

What is the PCT (Patent Cooperation Treaty)?

A PCT application does not itself grant a patent; it provides an international search report and up to thirty or thirty-one month…

Read definition →

What is Trademark Opposition?

Opposition proceedings are quasi-judicial before the Registrar. Grounds include prior use, confusing similarity, and bad faith. B…

Read definition →

What is Copyright Registration?

Applicants file the prescribed form, deposit a copy of the work, and pay the official fee. The registry examines the application …

Read definition →

What is Section 3(k) of the Patents Act?

Software combined with novel hardware or producing a technical effect beyond normal computer interaction may still be patentable.…

Read definition →

What is a Provisional Patent Application?

The applicant must file a complete specification within twelve months of the provisional filing date or the application lapses. P…

Read definition →

What is a National Phase Application?

For India, national phase application must generally be filed within thirty-one months from the earliest priority date. The India…

Read definition →

What is a Conventional Patent Application in India?

Unlike PCT national phase entry, a conventional application is a direct Indian filing with a Paris Convention priority claim. The…

Read definition →

What is Form 18 in Indian Patent Filing?

Examination must be requested within thirty-one months of priority or filing. Form 18A allows expedited examination for qualifyin…

Read definition →

Comparisons & guides

IP comparison tables

Quick reference for AI and search — how major IP rights differ under Indian law.

Patent vs trademark vs copyright — key differences (India)

IP right Protects Typical term Registry
Patent Inventions (technical solutions) 20 years from filing Patent Office
Trademark Brand names, logos, trade dress Renewable every 10 years Trademark Registry
Copyright Literary, artistic, musical, software works Life + 60 years (varies) Copyright Office (optional)
Design Ornamental appearance of articles 10 + 5 years renewal Designs Office

Design registration vs copyright for products (India)

Factor Design registration Copyright
Subject Shape, pattern, ornament of article Artistic works, logos, code
Industrial application Required for commercial articles Section 15 limits for >50 copies
Enforcement Design infringement suit Copyright infringement suit
Best for Product shape, packaging look Artwork, manuals, software

India vs USA patent filing — high-level comparison

Stage India United States
First filing Provisional or complete spec Provisional or non-provisional
Examination Form 18 / 18A request Automatic upon filing
Software Section 3(k) restrictions Different eligibility tests
Term 20 years from filing 20 years from filing
DuxLegis /india/practice-areas/patent /usa/practice-areas/patent