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Comparative Study of Indian Patent Law vs US, UK & EU Patent Regimes: A Supreme Court Perspective

Comparative Study of Indian Patent Law vs US, UK & EU Patent Regimes: A Supreme Court Perspective

  • 10 Jun 2026

Part C

Comparative Study: Indian Patent Law vs US, UK & EU Patent Regimes

1. Introduction

Patent systems across jurisdictions aim to balance innovation incentives with public interest, but they differ significantly in patentability standards, enforcement, and policy orientation.

India follows the Patents Act, 1970, while the US, UK, and EU operate under:

  • U.S. Patent Act

  • UK Patents Act 1977

  • European Patent Convention (EPC)


2. Comparative Table (Core Features)

FeatureIndiaUSAUKEU (EPO)
Governing Law                               Patents Act, 1970               Title 35 USCPatents Act 1977EPC
Patent Term20 years20 years                               20 years                                       20 years
Filing SystemFirst-to-fileFirst-to-file (post AIA)First-to-fileFirst-to-file
Patentable Subject MatterRestricted (Sec 3)BroadModerateModerate
Software PatentsNot patentable per seAllowedAllowed (technical effect)Allowed (technical effect)
Pharma PatentsStrict (Sec 3(d))LiberalModerateModerate
Compulsory LicensingStrongRareLimitedLimited
Pre-grant OppositionYesNoNoNo
Post-grant OppositionYesYes (PTAB)LimitedYes (EPO Opposition)

3. Patentability Standards

(A) India

  • Governed by Section 2(1)(j) (invention) and Section 3 exclusions.

  • Strict exclusion under Section 3(d) (pharmaceutical patents).

Key Case

Novartis AG v. Union of India
Citation: (2013) 6 SCC 1

Prevents "evergreening" of patents.


(B) USA

  • Broad patent eligibility under 35 U.S.C. §101.

  • However, subject to judicial restrictions.

Key Case

Alice Corp. v. CLS Bank International
Citation: 573 U.S. 208

Abstract ideas (including software) are not patentable without an inventive concept.


(C) UK

  • Based on EPC principles.

  • Requires a technical contribution.

Key Case

Aerotel Ltd v Telco Holdings Ltd

Established a structured test for patentability.


(D) EU (EPO)

  • Governed by Article 52 of the European Patent Convention.

  • Focuses on technical character.

Key Case

T 641/00 (COMVIK Approach)

Only technical features are considered when assessing inventive step.


4. Pharmaceutical Patents – A Key Difference

JurisdictionApproach
India                                     Very Strict (Section 3(d))
USALiberal (Incremental Innovation Allowed)
UK/EUModerate

Indian Position

  • Incremental innovation must demonstrate enhanced efficacy.

  • Protects public health and the generic pharmaceutical industry.


5. Software & Business Method Patents

JurisdictionPosition
IndiaNot Patentable Per Se
USAAllowed with Limitations
UK/EUAllowed if Technical Effect is Shown

Indian Law

Section 3(k) excludes:

  • Algorithms

  • Business methods

India adopts a much stricter approach than the US and EU.


6. Compulsory Licensing

India

  • Strong provision under Section 84.

  • Used in public interest.

Case

Bayer Corporation v. Natco Pharma Ltd.

First compulsory licence granted for a cancer drug.


USA / UK / EU

  • Rarely used.

  • Generally reserved for exceptional or emergency situations.


7. Opposition Mechanism

Type                                India USAUKEU
Pre-grantYes                 No                          No                             No
Post-grantYesYes (PTAB)LimitedYes


India has one of the strongest opposition systems among major patent jurisdictions.


8. Enforcement & Litigation

India

  • Civil suits under patent law.

  • Growing jurisprudence in Indian High Courts.

Key Case

Enercon (India) Ltd. v. Aloys Wobben
Citation: (2014) 5 SCC 1


USA

  • Strong enforcement mechanisms.

  • High damages awards and jury trials.


UK/EU

  • Specialized patent courts.

  • Centralized grant through the EPO, with national enforcement.


9. Procedure Comparison

Stage                       India                        USA                        UK/EU
FilingYesYesYes
Publication18 Months18 Months18 Months
ExaminationOn RequestAutomaticAutomatic
Grant Time2–5 Years2–4 Years2–4 Years


India requires filing a Request for Examination (RFE).


10. Policy Orientation

JurisdictionPolicy Focus
India                                        Public Interest and Access to Medicines
USAInnovation and Commercialization
UK/EUBalanced Approach

11. Impact on Business & Strategy

India

Ideal for:

  • Generic pharmaceutical companies

  • Cost-sensitive innovation

USA

Strong protection for:

  • High-technology companies

  • Software and biotechnology sectors

UK/EU

Balanced environment for:

  • Manufacturing industries

  • Engineering sectors


12. Key Differences (Summary)

India is Unique Because:

  • Strict patentability standards under Section 3

  • Strong compulsory licensing provisions

  • Pre-grant opposition mechanism

USA is Unique Because:

  • Broad patent scope

  • High damages awards

  • Strong enforcement mechanisms

UK/EU are Unique Because:

  • Technical effect requirement

  • Harmonized patent framework through the EPO


13. Strategic Takeaways for Businesses

  1. Pharmaceutical companies often prefer India for generic manufacturing opportunities.

  2. Technology companies may prefer the USA for broader patent protection.

  3. Global businesses frequently file patents across multiple jurisdictions.

  4. Patent strategies should be tailored to each jurisdiction's legal framework.


Conclusion

The Indian patent system under the Patents Act, 1970 is distinctly public-interest oriented, particularly in the pharmaceutical sector, while the US and EU systems are generally more innovation-driven and market-oriented.

A comparative understanding of these jurisdictions helps businesses:

  • Optimize patent filing strategies.

  • Reduce litigation risks.

  • Maximize global intellectual property protection.


Blog by:

Jayprakash B. Somani
Advocate, Supreme Court of India & President of NPNLC

Cell: PA 9322188701

www.jayprakashsomani.com
www.supremecourtlawfirm.com