Turn your invention into an enforceable Patent right.

From first prior-art search to a granted patent — and from a cease-and-desist letter to courtroom litigation — our patent lawyers prosecute, defend and commercialise inventions for founders, MSMEs and research teams across India.

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1–2 yrstypical grant timeline PCT readynational phase entry End-to-endsearch to enforcement

✓ Experienced patent lawyers ✓ Domestic & international filing ✓ Startup & MSME support ✓ Transparent professional fees ✓ Litigation & enforcement ✓ Confidential handling of inventions ✓ Experienced patent lawyers ✓ Domestic & international filing ✓ Startup & MSME support ✓ Transparent professional fees ✓ Litigation & enforcement ✓ Confidential handling of inventions

Our Services

Every invention moves through its own sequence of claims — from search to grant, and from licence to enforcement. Here is where yours sits.

01 — Search

Patent Search

Comprehensive novelty and prior-art searches across Indian and international databases, so you file with a clear picture of the landscape.

Novelty assessment Prior art Filing strategy

02 — Provisional

Provisional Patent Filing

Secure an early filing date while your invention is still under development, and buy the time to complete it properly.

Startups Inventors Research orgs

03 — Complete

Complete (Final) Patent Filing

Specification drafting, claims and drawings, filing with the Indian Patent Office, examination support and hearing assistance.

Specification Claims & drawings Examination

04 — PCT

International Patent Filing

Expand protection abroad through the Patent Cooperation Treaty — country selection, documentation, and national phase entry.

PCT application National phase

05 — Infringement

Patent Infringement Analysis

Claim mapping and product comparison to determine whether you're infringing — or being infringed upon — before you act.

Claim mapping Risk assessment

06 — Opposition

Pre & Post-Grant Opposition

Challenge an application before grant, or contest a wrongly granted patent — evidence, drafting and hearing representation.

Pre-grant Post-grant

07 — Cancellation

Patent Cancellation

Initiate cancellation proceedings against wrongly granted patents on grounds of novelty, obviousness or insufficient disclosure.

Lack of novelty Wrongful grant

08 — Notice

Legal Notice for Infringement

A professionally drafted cease-and-desist notice that resolves disputes before litigation becomes necessary.

Cease & desist Settlement

09 — Licensing

Patent Licensing & Transfer

Commercialise your invention through licensing agreements, assignment deeds, royalty terms and technology transfer.

Licensing Assignment

Exhibit B

When it goes to court.

Strategic litigation for clients enforcing patent rights — and for those defending against a claim.

Infringement Analysis

Patent claim comparison
Prior art analysis
Product mapping
Litigation strategy

Lawsuits & Defense

Civil suits
Interim & permanent injunctions
Damages claims
Court representation

Licensing Disputes

Royalty disputes
Breach of licence terms
Ownership rights

Invalidity & Cross-Border

Revocation proceedings
Multinational jurisdictions
International enforcement

Statement of grounds

Why file with us.

Ten reasons founders and research teams keep their patent portfolio with TrademarkBuyAndSell.

01 Experienced patent lawyers across technical disciplines
02 End-to-end registration — search through grant
03 Domestic and international filing under one roof
04 Dedicated support for startups and MSMEs
05 Transparent, fixed professional fees
06 Fast documentation and turnaround
07 Litigation and enforcement services in-house
08 Licensing and commercialisation support
09 Strict confidentiality on every invention disclosed
10 A dedicated attorney assigned to your matter

Index & Queries

Frequently Asked Questions

Patent registration typically takes 1–2 years, depending on examination, objections raised, and the complexity of the invention.

A provisional application secures an early filing date. It is filed to protect the 'Prior and Original Invention Rights' of the Inventor. A complete application includes the full specification and claims required for examination and grant to be field 12 Months after provisional.

Yes. Through the Patent Cooperation Treaty (PCT), you can seek protection in multiple countries with a single international application.

Consult a patent lawyer immediately for an infringement analysis. Depending on the circumstances, you may issue a legal notice or initiate litigation to enforce your rights.

Yes. Patent owners can license or assign their patents to other individuals or businesses through legally drafted agreements.

Ready to file

Protect what you've built — before someone else claims it.

Book a confidential consultation with a patent attorney and get a filing plan within 8 hours.