• Our firm D. P. Ahuja & Co., was founded in the year 1971
    by the late Desh Pal Ahuja (1924-1996), in Calcutta.

About Us

D.P. Ahuja & Co. is a renowned, professionally managed Intellectual Property (IP) services firm based in India. We specialize in providing comprehensive solutions for the acquisition and enforcement of Patents, Trademarks, Designs, and Copyrights.

Serving a diverse client base of over 2700 clients across 50 countries, including some of the most successful and demanding multinational corporations, we are known for our unparalleled expertise in IP law. Our commitment to excellence has earned us the trust of clients from various industries worldwide.

At D.P. Ahuja & Co., we believe in a work culture that embraces diversity and inclusivity. We actively support all ethnicities, uphold gender equality, and provide a professional platform for all to excel in their careers.

Our firm is dedicated to running a transparent, ethical, and corruption-free organization, ensuring integrity in every aspect of our work. We also contribute to numerous philanthropic and community development initiatives, enriching lives through our social responsibility efforts.

We do not outsource any professional work to anyone outside our firm. We do not have part-time employees or associates. We do not work from home. All searches, drafting and prosecution work is conducted in-house. We have a very strict data security policy in place and each of our employees, patent attorneys, trademark attorneys and law associates are required to sign a confidentiality/non-disclosure agreement with D. P. Ahuja & Co.

List of Services

We provide a wide range of IP services, including:

  • Patent and Design Searches and Opinions
  • Drafting Patent Specifications
  • Filing and Prosecution of Patent and Design applications
  • Review and Appeals arising out of Patent Office Decisions
  • Infringement Analysis and Freedom to Operate Opinions
  • Patent Infringement Suits
  • Filing Working Reports/Statement of Use for Granted Patents
  • Obtaining Foreign Filing Permission for Inventors in India
  • Review of Research Agreements, Inventor Employment Contracts, and Technology Transfer Agreements
  • Renewals and Recordals of IPRs
  • Trademark Searches and Registrability Opinions
  • Filing, Prosecution, Opposition, and Cancellation of Trademarks
  • Licensing and Franchising of IPRs
  • Prosecution of International Registrations (Madrid Protocol)
  • Appeals in High Courts against Trademark Registry Orders
  • Company Name Searches
  • Market Investigations and Cease-and-Desist Notices
  • Take-Down Notices of Infringing Content on the Internet
  • Trademark Litigation and Passing Off Suits
  • Anti-counterfeiting Actions
  • Domain Name Arbitration
  • Recordals and Enforcement of IPRs at Customs
  • Copyright Registration
  • Registration of Geographical Indication (GI)
  • Afflications of our Professionals & Staff Members

Memberships

D.P. Ahuja & Co. is proud to be a member of the following prestigious organizations:

  • INTA (International Trademark Association)
  • APAA (Asian Patent Attorneys Association)
  • AIPLA (American Intellectual Property Law Association)
  • AIPPI (International Association for the Protection of Intellectual Property)
  • LES (USA & Canada) – Licensing Executives Society
  • CITMA (Chartered Institute of Trade Mark Attorneys)
  • IBA (International Bar Association)
  • Rotary International
  • Indo American Chamber of Commerce
  • Indo German Chamber of Commerce
  • Indo-Japan Chamber of Commerce & Industry
  • Associated Chambers of Commerce & Industry of India
  • Indo-Italian Chamber of Commerce
  • Indo-British Scholars' Association (IBSA)

Affiliations of our Associates & Staff Members

  • Indian Institute of Technology (IIT) Mumbai
  • Indian Institute of Technology (IIT) Delhi
  • Indian Institute of Technology (IIT) (BHU)
  • National Law School of India University
  • The West Bengal National University of Juridical Sciences
  • Rajiv Gandhi School of Intellectual Property Law (RGNIIPM), IIT Kharagpur
  • Indian Institute of Management (IIM)
  • University of Delhi
  • University of Calcutta
  • University of Mumbai
  • University of Pune
  • Symbiosis Law School, Symbiosis National University
  • Asian School of Cyber Laws
  • The ICFAI University
  • West Bengal University of Technology
  • National Institute of Science & Technology, Orissa
  • Indian Institute of Social Welfare and Business Management (ISWBM)
  • Heritage Institute of Technology
  • National Institute of Personnel Management (NIPM)
  • Kalinga Institute of Industrial Technology (KIIT)

  • University of Ukraine
  • Queen Mary University of London, UK
  • University of Central England, UK
  • University of Manchester, UK
  • University of Washington, USA

Community Service Commitments

We are deeply committed to giving back to the community. With the support of our clients, we have been able to fund various initiatives, such as:

  • Providing daily breakfast to 2,225 underprivileged children in remote villages
  • Supplying daily nutritional milk to 115 destitute children
  • Offering daily full meals to 900 needy individuals
  • Awarding monthly scholarships for school fees and books to 135 students from low-income families
  • Supporting eye surgeries for 24 needy individuals and medical care for 59 abandoned elderly persons annually


These contributions are funded through our firm’s net income.

Mailing Address



We look forward to continuing our legacy of excellence and contributing to the global intellectual property landscape. Thank you for considering D.P. Ahuja & Co. as your trusted partner in IP services.

Brief Tour of Our Workplace

Our Art Collection

Mr. SD Ahuja has a personal art collection which was initiated over 30 years ago. Today, the collection comprises of over 2000 artworks of over 250 artists from all over the world. The collection is housed in the Ahuja Museum for Arts in Calcutta.

We display below a few select art pieces from this collection.

Disclaimer & Copyright Notice:

The information contained in this website is for general information purposes only and should not be construed as marketing material or as professional advice. The website and its contents are copyright of D.P. Ahuja & Co. You may not distribute the data, text or graphics to others, "mirror" this information on your server or copy the data into any database without our permission or modify or re-use the text or graphics on this website. Commercial use of the material is prohibited without the written permission of D. P. Ahuja & Co.
While we endeavour to keep the information up to date and correct, we make no representations about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk. Through this website you may be able to link to other websites which are not under the control of D. P. Ahuja & Co. We have no control over the nature, content and availability of those sites. The inclusion of any links to other websites does not imply a recommendation or endorsement of the views expressed within them.
Every effort is made to keep the website up and running smoothly. However, D. P. Ahuja & Co., takes no responsibility for, and will not be liable for, the website being temporarily unavailable due to technical issues beyond our control.



Trademark Notice:
“D. P. AHUJA”, “D. P. AHUJA & CO.” , “READY FOR TOMORROW”,

and are registered trademarks of our firm.

and 54 years seal are also trademarks of our firm.