Patent and Trademark Attorney Firm, since 1990
Where Law Drives Business Globally
Innovation deserves to lead, brands deserve to stand apart and businesses deserve to grow with confidence - backed by exceptional legal expertise in intellectual property, corporate, commercial and international law.
Who we are
A Full-Service Law Firm in India with global practices
For over 30 years, turning ideas into value and law into business strength.
We are a leading Patent and Trade Mark Attorney Firm in India, with a legacy of landmark cases in Trade Mark and Copyright Law. We deal with Trade Mark Registration, Patent Registration, Copyright Registration and Design Registration in India and IP litigation. To meet the diverse legal needs of our global clientele, we have evolved into a full-service international law firm, handling matters across multiple fields, including Corporate Law, Maritime Law, International Trade Disputes, Arbitration and Commercial Litigation.
Our Practices
Expertise across intellectual property and business law
From patents and trade marks to corporate transactions, arbitration and maritime claims, each matter is handled by lawyers who practise in that field every day.
Patents
Searches, drafting, filing, prosecution and oppositions for inventions in India and abroad.
ExploreTrade Marks
Clearance, registration, oppositions, renewals and protection of brands in India and overseas.
ExploreCopyright
Registration, licensing and enforcement for literary, artistic, musical, cinematographic and software works.
ExploreIndustrial Designs
Registration and protection of the shape, configuration, pattern and ornament of products.
ExploreGeographical Indications
Registration and protection of products whose quality is tied to their place of origin.
ExploreIP Enforcement and Litigation
Infringement and passing-off actions, rectification, customs recordals and anti-counterfeiting.
ExploreInternational Filings
Protection abroad for Indian clients and in India for foreign clients, through an associate network.
ExploreCorporate Law
Company law, contracts, licensing, technology transfer and corporate compliance.
Explore +8More practices
Corporate law, mergers and acquisitions, foreign trade, maritime, media, sports, fashion and technology law.
View all 16 practicesLandmark cases
Work that has shaped Indian IP practice
The first trade mark granted to an address
The firm secured trade mark protection for '6 Ballygunge Place', an address that became a celebrated Bengali restaurant brand.
Read the case
Protecting the name of the Missionaries of Charity
Pro bono work to secure protection for the house name of the Missionaries of Charity, founded by Mother Teresa.
Read the case
Mother Teresa's blue-bordered sari
The white sari with blue borders worn by Mother Teresa and her sisters was recognised as the intellectual property of the Missionaries of Charity.
Read the caseClient voices
Trusted by businesses in India and abroad
Clients return to the firm for the same reasons they first instructed it: clear advice, timely action and lawyers who understand their business.
Our trademark registration matter for India and Europe has been successfully completed by this firm. We are very happy about their work and the global knowledge.
We worked with many international offices all around the world to follow the registrations and the management of our trademarks and I am glad to tell you that your office is one of the most professional.
This law firm provides highly professional and quality oriented services, achieving deadlines on time and providing good guidance regarding IPR cases.
We appreciate the professional services rendered by you to create intellectual property rights for our business. We wish a thriving future for your organisation.
We appreciate your efficient and timely services that you are rendering to us over many years.
We are very happy with the services provided by this law firm who always deliver on time and maintain quality work culture.
We appreciate your significant professional services in creating Intellectual Property Rights for our business. We look forward to avail more services from your organisation.
Our Clientele
In good company
Logos are trade marks of their respective owners and are shown for identification only.
Insights
Events, news and blogs
Events
23Sep 2026Participating in Disruptive Strategies Conclave 2026
Biswajit Sarkar Advocates and IP Attorneys is pleased to announce its invitation to attend the Disruptive Strategies Conclave 2026 in Kolkata on 25th ...
23Jul 2026Session on Current Challenges in Intellectual Property Rights
We are pleased to announce an Interactive Session on “Current Challenges in Intellectual Property Rights (IPR)”, organized in collaboration with the D...
27Apr 2026Amsterdam IP Conference 2026
Leading IP Law Firm Biswajit Sarkar, Advocates – IP Attorneys to Join Global Deliberations at Amsterdam IP Conference 2026 Spread the love
20Mar 2026Asean IPA Conference 2026
Another milestone for our firm – Biswajit Sarkar, Advocates – IP Attorneys, which has received a prestigious invitation from the ASEAN Intellectual Pr...
05Jan 2026Q & A Session on IPR
You are cordially invited to join an interactive Question & Answer Session on Intellectual Property Rights (IPR) for Engineering Businesses, focusing ...
18Apr 2025World IP Day 2025
World IP Day 2025 by Biswajit Sarkar - IP Attorneys celebrates innovation and intellectual property rights with impactful events and discussions.
09Nov 2024Global Business Summit
Join top leaders at the Global Business Summit 2024 to connect, innovate, and shape the future of global business.
08Jan 2024Beyond Borders: The Iconic Trademark Of Mother Teresa
The Iconic Trademark Of Mother Teresa - the prohibition of personal names as trademarks.
07Dec 2023Eurasia IP/ India IP conference in Russia – 2023
Speech at Eurasia IP/ India IP conference in Russia by Mr. Biswajit Sarkar
02Oct 2023Pranaam Mahatma
Heartiest Salute to our national leader- Mahatma Gandhi on this day! Early Years Mahatma Gandhi, born Mohandas Karamchand Gandhi took birth in the wak...
Latest News
Who Pays For AI?
When three authors sued Anthropic in August 2024, nobody expected it to snowball into the largest copyright settlement in American history. But fast forward to July 2026,...
DPDP: The Clock Starts Ticking
New Delhi | Cyber Law & Policy Desk New Delhi: India’s push to build a functioning data protection regime took a significant step forward this year, as the Ministry of ...
Can AI Systems Be Inventors?
Can an artificial intelligence (AI) system be recognised as an inventor under Indian patent law? The Controller General of Patents, Designs and Trade Marks has now provid...
GI-Tagged Mithila Makhana Makes
GI-Tagged Mithila Makhana Makes First Sea Shipment to Australia August 11, 2026 Bihar’s famous Mithila Makhana has made further progress in the global market with its ini...
Creative Design Protection in India
In today’s competitive business, the appearance of any product is essential. It creates the demand in the market. Before purchasing any product, customers are generally ...
FLASHBACK OF FIFA LOGO
The FIFA World Cup is more than the pinnacle of international football; it is one of the most recognisable and commercially valuable sporting brands in the world. Every f...
Contempt Has Its Limits: Delhi HC on Google Ads
New Delhi, July 2026. For nearly a decade, one Delhi courtroom has been quietly shaping how India expects the world’s biggest search engine to police the trademarks that ...
SC to Courts: Verify Your AI, or Lose the Case
New Delhi, July 2026. In a ruling that legal circles are already calling one of the sharpest judicial responses yet to the creeping problem of artificial intelligence hal...
CHAMPAGNE AND CULTURAL HERITAGE LAW
CHAMPAGNE AND CULTURAL HERITAGE LAW Geographical Indications, Terroir, and the Protection of a Name Introduction Few words in the global commercial lexicon carry the comb...
Can a Temple Own a Name? Jagannath Temple Says Yes
Puri Jagannath Temple Secures IP Protection for ‘Sacred’ Words: A Move in the Right Direction for Heritage, Culture, and Business Meta description: In an unprecedented mo...
Blogs
Trademark Registration in India | Process, Requirements & Fees
Learn about trademark registration in India, including the process, requirements, documents, fees, trademark classes, objections, opposition and renewal.
Creative Design Protection in India
In today’s competitive business, the appearance of any product is essential. It creates the demand in the market. Before purchasing any product, customers are generally ...
MakeMyTrip vs MakeMyIndiaTrip: The Trade Mark War
When Reputation Travels Faster Than Innovation: Lessons from MakeMyTrip (India) (P) Ltd. v. MakeMyIndiaTrip In contemporary commerce, where digital visibility often com...
Design Registration in India: Process, Cost & Timeline 2026
A product’s appearance often sells it before its function is ever tested. The curve of a bottle, the profile of a chair, the ornamentation on jewellery: these visual feat...
Top 10 Lawfirms in India for Trademark & IP Services
Looking for the best lawfirms in India for trademarks and IP law? Discover the top 10 trademark law firms in India trusted for brand protection.
Trademark vs. Copyright vs. Patent: Key Differences Explained
Confused about trademarks, copyrights, and patents? Learn the key differences, what they protect, and how they apply to businesses, creators, and inventors.
Trademark Infringement & Passing Off
Trade mark protection is an essential aspect of intellectual property law, ensuring that businesses can protect their brand identity against unauthorized use. The two pri...
Copyright Infringement on OTT Platforms
Copyright infringement on OTT platforms poses legal risks. Learn how to prevent violations and protect content rights in the streaming industry.
Trademark Clash Over Cider
Trademark Clash Cider dispute sparks legal battle over branding rights. Learn how trademarks impact cider brands in this high-stakes case.
Thrive in Thailand
Discover how to thrive in Thailand with tips on culture, lifestyle, and opportunities to make the most of your journey.
Quick Company Trademark Search in India : A Complete Guide
Learn how to conduct a quick company trademark search in India with this comprehensive guide. Protect your brand by avoiding legal issues and ensuring your trademark is u...
Trademark Rectification
Trademark Rectification Guide: Learn comprehensive steps for rectifying trademarks effectively.
Global presence
Originating from India, serving clients worldwide
Based in Kolkata, with offices in Mumbai, Delhi and Hyderabad and supported by a trusted network of associate firms across North America and Europe, the firm combines global expertise with local insight to deliver seamless intellectual property protection and other legal services worldwide.
Memberships
