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Practice Guide · Patents Act, 1970

Patent Trolls in India

How Non-Practicing Entities (NPEs) exploit patent rights, the legal safeguards available under Indian patent law, and the practical strategies innovators can adopt to protect themselves from abusive patent enforcement.

Jurisdiction: India Reading time ≈ 12 min Reviewed by an IP Attorney

01 — The Essentials

What Is a Patent Troll?

A patent troll, commonly known as a Non-Practicing Entity (NPE) or Patent Assertion Entity (PAE), acquires patents not for manufacturing, commercialization, or research purposes, but primarily to generate revenue through licensing demands and infringement litigation.

These entities typically:

  • Do not manufacture products or provide services.
  • Acquire broad or dormant patents.
  • Target operating businesses with infringement claims.
  • Leverage the high cost of litigation to obtain settlements.

Their business model depends on legal pressure rather than innovation.

Why Patent Trolls Matter

As India's innovation ecosystem expands across software, artificial intelligence, biotechnology, pharmaceuticals, electronics, and manufacturing, businesses increasingly face risks from patent assertion campaigns.

The threat is particularly significant for:

  • Startups
  • SMEs
  • Technology companies
  • Export-oriented businesses
  • Companies operating in US and European markets

Even where infringement claims lack merit, defending litigation can be expensive and disruptive.

02 — Understanding the Threat

How Patent Trolls Operate

Patent trolls generally follow a predictable pattern:

Step 1 — Acquire Patents

They purchase patents from:

  • Bankrupt companies
  • Individual inventors
  • Patent auctions
  • Technology firms exiting a market

Step 2 — Identify Targets

Businesses developing commercially successful products become targets, particularly in technology-heavy sectors.

Step 3 — Send Legal Notices

The troll issues:

  • Cease-and-desist letters
  • Licensing demands
  • Infringement notices
  • Settlement proposals

Step 4 — Threaten Litigation

The objective is often not to win a lawsuit but to force an economically attractive settlement.

Types of Patent Trolls

Litigation Trolls

Acquire patents solely to initiate infringement suits and seek damages.

Licensing Trolls

Generate revenue through aggressive licensing campaigns without intending to litigate initially.

Shell Company Trolls

Operate through special-purpose entities that conceal the real owners and reduce litigation exposure.

Portfolio Aggregators

Accumulate large patent portfolios and pressure businesses into broad licensing arrangements.

Patent Assertion Entities (PAEs)

Professional organizations whose principal business model is patent enforcement.

Hybrid Trolls

Combine licensing, litigation, and portfolio strategies to maximize pressure on targets.

03 — The Law That Governs It

Indian Legal Safeguards

India's patent regime contains several provisions designed to discourage patent hoarding and abusive enforcement.

Section 84

Compulsory Licensing

Where patented inventions are not adequately worked in India, interested parties may seek compulsory licences.

Purpose: Prevent abuse of exclusive patent rights.

Section 107A

Research & Experimental Use

Provides statutory protection for certain experimental and research activities.

Purpose: Encourage innovation and scientific development.

Section 3(d)

Anti-Evergreening Provision

Restricts patent protection for minor modifications lacking enhanced efficacy.

Purpose: Prevent unjustified extension of patent monopolies.

Section 64

Revocation of Patent

Allows invalid patents to be challenged and revoked.

Grounds include:

  • Lack of novelty
  • Obviousness
  • Wrongful obtaining
  • Non-patentable subject matter
  • Insufficient disclosure

Section 146

Working Statement Requirement

Patentees must disclose whether and how the invention is being commercially worked in India.

Purpose: Discourage patent warehousing.

Section 25(2)

Post-Grant Opposition

Interested parties may challenge a granted patent on statutory grounds.

Purpose: Remove weak or improperly granted patents from the register.

Designs Act, 2000

Patent-like assertion strategies occasionally involve industrial design registrations.

Under Section 19, a registered design may be cancelled if:

  • It is not new or original.
  • It was previously disclosed.
  • It fails to satisfy statutory requirements.
  • It does not qualify as a design under the Act.

04 — Practical Protection Strategy

1 Conduct Freedom-to-Operate (FTO) Searches

Before Product Launch

An FTO analysis identifies patents or designs that may affect commercialization.

Benefits include:

  • Reduced infringement risk
  • Better licensing decisions
  • Early dispute avoidance

2 Monitor Patent Filings

Patent Watch Programs

Track:

  • Competitor filings
  • Emerging patent portfolios
  • Industry-specific registrations

Key resources include:

  • IP India
  • WIPO PATENTSCOPE
  • International patent databases

3 Build a Defensive IP Portfolio

Protect Before Others Do

File:

  • Patent applications
  • Design registrations
  • Defensive publications

A strong portfolio creates leverage against potential assertions.

4 Challenge Weak Patents

Use Available Remedies

Where questionable patents are identified, businesses may:

  • File post-grant opposition
  • Seek revocation under Section 64
  • Challenge validity during infringement proceedings

Weak patents are often the foundation of troll activity.

5 Obtain Early Legal Advice

Strategic IP Management

Professional guidance helps businesses:

  • Assess infringement risks
  • Respond to legal notices
  • Negotiate licences
  • Develop litigation strategies

Early intervention often prevents costly disputes.

05 — Case Study

Spice Mobiles & Samsung v. S. Somasundaram Ramkumar

One of India's most discussed patent enforcement disputes involved Patent No. 214388 relating to dual-SIM mobile phone technology.

The Dispute

The patent owner asserted rights against several mobile phone manufacturers and sought enforcement through customs actions and infringement claims.

The Challenge

Samsung and Spice Mobiles initiated revocation proceedings alleging:

  • Lack of novelty
  • Obviousness
  • Anticipation by prior art
  • Improper claim amendments

The Outcome

The Intellectual Property Appellate Board (IPAB) revoked the patent, finding:

  • Prior art disclosures existed.
  • The invention lacked inventive step.
  • Certain amendments exceeded permissible limits.

Why It Matters

The case demonstrated:

  • Importance of patent validity
  • Availability of revocation mechanisms
  • Risks of aggressive patent assertion
  • Judicial scrutiny of weak patents

06 — Protection Roadmap

How to Protect Yourself from Patent Trolls

Step 1

Conduct Patent Landscape Analysis

Step 2

File Patent or Design Applications

Step 3

Monitor Industry Patent Filings

Step 4

Perform Freedom-to-Operate Review

Step 5

Obtain IP Audit and Legal Opinion

Step 6

Draft Licensing Agreements Carefully

Step 7

Challenge Weak or Abusive Patents

Step 8

Prepare Litigation and Enforcement Strategy

07 — Key Takeaways

Five Things Every Innovator Should Remember

01 Prevention Is Better Than Litigation

FTO searches and patent monitoring reduce future disputes.

02 Weak Patents Can Be Challenged

Indian law provides opposition and revocation mechanisms.

03 Build Your Own IP Portfolio

Strong IP rights provide strategic leverage.

04 Documentation Matters

Maintain records of development and innovation activities.

05 Seek Professional Advice Early

Early legal assessment is significantly less expensive than defending litigation.

08 — In Summary

Conclusion

Patent trolls represent a growing challenge for innovators, startups, and technology-driven businesses. While India's patent framework contains safeguards against abusive patent practices, businesses cannot rely solely on statutory protections.

A proactive approach—combining patent monitoring, Freedom-to-Operate analysis, defensive filings, and timely legal advice—remains the most effective defence. By understanding how patent trolls operate and using the remedies available under the Patents Act, 1970 and the Designs Act, 2000, businesses can protect innovation, reduce litigation exposure, and commercialize technology with greater confidence.

Frequently Asked  Questions

A patent troll, also known as a Non-Practicing Entity (NPE) or Patent Assertion Entity (PAE), is a person or organization that owns patents primarily to demand licensing fees or file infringement lawsuits rather than to manufacture products or commercialize inventions.

Owning and enforcing patents is legal in India. However, abusive patent enforcement based on weak, overly broad, or invalid patents can be challenged through opposition, revocation, and other remedies available under the Patents Act, 1970.

Startups often have limited legal budgets and resources. Patent trolls exploit the high cost of litigation, making many startups more likely to settle claims even when the allegations are weak or questionable.

Yes. Some entities may attempt to misuse industrial design registrations. However, Section 19 of the Designs Act, 2000 allows cancellation of designs that are not new, original, or legally valid.

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