Professionals & Technical Associates
In PATENTS, we specialise in the areas of Telecommunications, Electronics, Automobiles & Transmissions, Pharmaceuticals, Biotechnology, Heavy Machinery, Metallurgy and Materials Sciences, and Chemical Engineering.
We have 9 Patent Attorneys and 2 Advocates in our Patents department, with experience ranging from 5 to 30+ years, and 21 highly qualified and experienced Paralegals, Managers and Support Staff
We are currently actively prosecuting over 2000 patent applications, 220 Patent Oppositions, Revocations and Litigation matters. In the past one year we have attended more than 600 hearings through video conferencing.
We have obtained over 3000 Foreign Filing Licenses for Indian inventors, handled 220 Pre-grant and Post-grant Oppositions, 65 Patent Appeals, and IP Infringement litigation cases in the last 3 years.
In TRADEMARKS, we specialise in Searches, Opinion, Prosecution, Oppositions, Cancellations and Litigation.
We have a robust trademark opposition and litigation practice of over 50 years, and office presence within the jurisdictions of the major High Courts in India in Delhi, Bombay, Madras and Calcutta.
We have over 15 Trademark Attorneys and Advocates in our Trademarks and Litigation department, with experience ranging from 2 to 30+ years, and 12 highly qualified and experienced Paralegals, Managers and Support Staff.
We have handled/are handling 35,000+ trademark applications, 3000+ International Applications under the Madrid Protocol, 11,000+ trademark opposition matters, 2500+ trademark rectification matters before the Registrar of Trademarks, and 500+ enforcement matters, before the Registrar of Companies (trade names), the High Courts (trademark infringement and passing off), domain name complaints/ arbitration, and IPR proceedings before the Customs, in India.
We have excellent case preparation capabilities which has translated to a high success rate (99%). We have successfully handled over 350 trademark litigation matters for our international and domestic clients, in the last 25 years, including achieving several “well-known mark” decisions, namely for the brands ZARA, NIVEA, CALVIN KLEIN, HONDA, CANON, CITIZEN, among others, in India.
We also specialize in handling pre-litigation investigations, legal (cease and desist) notices and take-down notices of infringing content over the Internet.
Attorneys, Professionals and Managers
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Sudhir D. Ahuja
Registered Patent Agent [IN/PA-122].
Experience: 42 years
He handles Administration, Foreign Filings, Patent Oppositions, Designs, Licensing and Joint Ventures.
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Dr. I. S. Bhattacharya, Ph.D.
Registered Patent Agent [IN/PA-270]. M.Sc in Organic Chemistry from IIT Mumbai and Ph.D. from IIT, Mumbai.
Experience: 38 years
She handles Patent Prosecution, Oppositions and Appeals in the areas of Pharmaceuticals, Biotechnology and Gene Technology.
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S. K. Gue
Registered Patent Agent [IN/PA-892].
Experience: 41 years
Bachelor of Engineering (Hons), Metallurgy from, the National Institute of Technology, Durgapur.
He handles Patent Prosecution, Oppositions and Appeals in the areas of Metallurgy, Automobiles, Heavy Vehicles and Software Electronics. -
A. Singh
Registered Patent Agent [IN/PA-2046].
Experience: 18 years
Master's Degree in Mathematics She handles Patent Drafting, Patent Searches and opinions.
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Meenakshi Maharaj
Registered Patent Agent [IN/PA-1064].
Experience: 20 years
Master's Degree in Radio Electronics & Telecommunications Engineering from the Odessa State University, Post Graduation in Business Law and Diploma in Business Management.
She handles Patent Prosecution, Oppositions and Appeals in the areas of Telecommunications, Electronics, Computers, and Electrical Appliances. -
Snigdha Rani Das
Registered Patent Agent [IN/PA-667], Lawyer and Advocate, Bar Council Membership No. : D/2966/2009
Experience: 21 years
Bachelor's Degree in Engineering (Electronics) from the National Institute of Science & Technology, Lawyer & Advocate (L.L.B.) from the Integrated School of Law.
She handles Patents and Designs Prosecution, Oppositions and Appeals in the areas of Software, Electronics including Telecommunications, Semiconductor, embedded system, and Electrical Appliances. -
B. Das
Registered Patent Agent [IN/PA-915].
Experience: 49 years
Bachelor's Degree in Metallurgical Engineering and handles Patent and Design Prosecution.
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Rupsa Gupta
Registered Patent Agent [IN/PA-1613].
Experience: 15 years
Bachelor's Degree in Biotechnology. She handles Patent Prosecution, Oppositions and Appeals in the areas of Pharmaceuticals, Biotechnology and Gene Technology.
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Aditi Sen Tripathi
Lawyer and Advocate, Bar Council Membership No. : Mah/3515/2001
Experience: 20 years
Bachelor’s Degree in Science and a Master’s Degree in Law. She handles Patent and Design Litigation and Appeals.
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A. K. Jain
Registered Patent Agent [IN/PA-5314].
Experience: 11 years
Master's Degree in Science (Microbiology) He assists in Patent prosecution.
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B. Malakar
Bachelor's Degree in Science.
Experience: 27 years
He handles Design matters.
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D. Roy
Diploma in Mechanical Engineering
Experience: 15 years
He handles Patent Operations.
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A. Dam
Bachelor's Degree in Science (Aircraft Maintenance Engineering) .
Experience: 8 years
He assists in Patent prosecution.
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C. Ghosh
Bachelor's Degree in Commerce and a Post Graduate Diploma in International Marketing.
Experience: 20 years
She heads the Patent Annuities Department and Foreign Filing Licence department..
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S. Manna
Bachelors Degree in Technology (Civil Engineering)
Experience: 7 years
She assists in Patent Prosecution.
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A. Ahuja
Bachelor's Degree in Science (Oceanography) from the University of Washington, USA and Master's Degree in Science (Innovation & Entrepreneurship) from the University of Manchester, UK
Experience: 1 year
She handles Patent Drafting and Patent Searches.
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R. Sircar
Master's Degree in English Literature & Language from the University of Calcutta, Post Graduate Diploma in Mass Communication, Registered Trademark Agent, Registered Geographical Indications Agent
Experience: 34 years
She handles case law research, legal analysis, Trademark Prosecution, Oppositions, Opinions, International Trademarks under the Madrid Protocol, Copyrights and Geographical Indications.
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S. S. Mitra
Bachelor's Degree in Geography from the University of Calcutta
Experience: 38 years
She heads the department of Trademark Investigations, Brand Enforcement, Litigation, Licensing, Customs Procedures and Domain Name issues.
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R. Mitra
Lawyer and Advocate.
Experience: 24 years
She handles Trademark Opposition and Rectification hearings, Appeal hearings and Litigation.
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M. Kumar
Lawyer and Advocate, Former Examiner of Trademarks
Experience: 21 years
He handles Trademark Oppositions, Rectifications and Appeals.
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K. S. Rai
Lawyer and Advocate, Former Examiner of Trademarks
Experience: 22 years
He handles Trademark Oppositions.
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S. S. Menon
Lawyer and Advocate.
Experience: 14 years
She handles case law research, legal analysis, Trademark Oppositions, Rectifications, Appeals and Litigation.
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B. Banerjee
Lawyer and Advocate.
Experience: 12 years
He handles Trademark Rectifications, Appeals and Litigation.
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N. Thambi
Lawyer and Advocate.
Experience: 11 years
She handles evidence preparation in Trademark Oppositions and Litigation.
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S. Chatterjee
Lawyer and Advocate.
Experience: 9 years
He handles Trademark Prosecution hearings, Oppositions, Opinions and Evidence Preparation
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M. Biswas
Lawyer and Advocate.
Experience: 11 years
She handles Trademark Oppositions and Evidence Preparation.
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V. Singh
Lawyer and Advocate.
Experience: 6 years
She manages Trademark Watches.
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S. Sarkar
Lawyer and Advocate.
Experience: 8 years
She handles Trademark Oppositions.
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N. Nath
Lawyer and Advocate.
Experience: 4 years
She handles Trademark litigation
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S. Ghosh
Lawyer and Advocate
Experience: 4 years
He handles Trademark Searches and Prosecution
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B. M. Quinn
Lawyer & Solicitor (University of Central England)
Experience: 24 years
He handles foreign Trademark matters and is qualified to practice in the UK.
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S. D. Ahuja43 years of association with the firm
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Dr. I. S. Bhattacharya29 years of association with the firm
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S. K. Gue23 years of association with the firm
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M. Maharaj22 years of association with the firm
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A. Singh19 years of association with the firm
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B. Das17 years of association with the firm
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A. S. Tripathi16 years of association with the firm
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R. Gupta15 years of association with the firm
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S. R. Das13 years of association with the firm
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A. K. Jain4 years of association with the firm
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C. Ghosh24 years of association with the firm
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B. Malakar18 years of association with the firm
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D. Roy17 years of association with the firm
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A. Dam8 years of association with the firm
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N. Sanyal35 years of association with the firm
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S. Das19 years of association with the firm
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M. George19 years of association with the firm
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S. Maitra18 years of association with the firm
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S. Mishra19 years of association with the firm
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A. Pal15 years of association with the firm
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D. Dey16 years of association with the firm
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S. Basu9 years of association with the firm
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S. Ghosh8 years of association with the firm
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S. Chakraborty7 years of association with the firm
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S. Shee6 years of association with the firm
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B. Ghosh6 years of association with the firm
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R. Basu6 years of association with the firm
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S. Manna6 years of association with the firm
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A. Ahuja1 year of association with the firm
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R. Sircar31 years of association with the firm
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S. S. Mitra29 years of association with the firm
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M. Kumar19 years of association with the firm
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S. S. Menon19 years of association with the firm
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B. M. Quinn14 years of association with the firm
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R. Mitra14 years of association with the firm
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N. Thambi13 years of association with the firm
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B. Banerjee13 years of association with the firm
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M. Biswas8 years of association with the firm
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S. Chatterjee8 years of association with the firm
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V. Singh7 years of association with the firm
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S. Ghosh12 years of association with the firm
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N. Nath3 years of association with the firm
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S. Sarkar2 years of association with the firm
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K. S. Rai1 year of association with the firm
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M. N. Akhter16 years of association with the firm
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A. K. Sadhukhan18 years of association with the firm
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D. Goswami12 years of association with the firm
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B. Bhandari12 years of association with the firm
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B. Das10 years of association with the firm
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A. Majumdar9 years of association with the firm
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M. Dhar9 years of association with the firm
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A. Biswas8 years of association with the firm
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A. Banerjee30 years of association with the firm
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I. Palit16 years of association with the firm
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R. Neogi25 years of association with the firm
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M. Majumdar18 years of association with the firm
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S.K. Khaitan38 years of association with the firm (Auditor)
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I. Mitra14 years of association with the firm
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P. Banerjee16 years of association with the firm
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B. Bisht24 years of association with the firm
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M. V. K. Prasad10 years of association with the firm
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A. Nag16 years of association with the firm
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R. Saha14 years of association with the firm
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T. Jana13 years of association with the firm
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A. Saha13 years of association with the firm
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S. Biswas12 years of association with the firm