
Patents
From handling the first patent issued under the 1911 Patents and Designs Act to filing nearly 5000 patent applications annually, Remfry & Sagar is well known amongst all domestic and international cleints who appreciate the depth of experience its 100 member strong team brings. We provide:
- Protection of patent rights across a range of technology sectors including chemistry, biotechnology, pharmaceuticals, electrical, electronics, food and related fields, telecommunications and software;
- The full spectrum of patent protection services including search and watch activities, carrying out due diligence investigations, and providing freedom to operate and invalidity opinions all of which are supported by subscriptions to high end IP databases;
- Proficiency in filing and validation of patent rights in India. The filing department is aided by a team dedicated to docketing instructions/timelines and ensuring compliance with all procedural formalities;
- Detailed, solution centric advice on filing and prosecuting patent applications taking into account local patentability prohibitions, long term enforceability criteria and the commercial objectives of our clients;
- Expertise in the initiation of, and defence against, opposition and revocation matters before the Patent Office and the Intellectual Property Appellate Board (IPAB);
- Advice on the assignment and licensing of patent rights to leverage the maximum value from IP assets and effecting seamless recordals of such instruments;
- Services of docketing and maintaining patent annuities ensuring the subsistence of valuable rights.
“This practice stands out due to its deep specialization in niche areas, a client-centric approach tailored to individual needs, and a proven track record of success”
Legal500, 2025
“As I know Remfy is one of the best IP firms in India. I enjoyed working with them on patent matters in India.”
Legal500, 2024
“The experience of working with Remfry & Sagar is amazing. There is no doubt that it is one of the best Indian patent firms.”
IAM Patent 1000, 2024
“Sources endorse the firm's leading position in the IP sphere, highlighting their particular strength in handling a 'huge volume of patent prosecutions'.”
Chambers Asia Pacific Guide 2021
“They are the go-to counsel in India.”
Chambers Asia Pacific Guide 2020
“Renowned for its “tremendous” drafting and portfolio management…. it ranks among the country’s most prolific filers.”
IAM Patent 1000 2016
“The team is fantastic…the lawyers are extremely receptive, very willing to listen, and understand cutting-edge science.”
Chambers Asia Pacific Guide 2017
“A titan of the Indian patent landscape since 1827.”
IAM Patent 1000 2017
Patents
Associated Attorneys
Press & Publications
- Feb
- 2026
Court clarifies scope of sufficient evidence for proof of right to apply for patents as an assignee
By Surendra Sharma | View Link
- Dec
- 2025
Court demands greater rigour from IPO in assessing inventive step and section 3(d) objections
By Himani Pandey | View Link
- Nov
- 2025
Disclosure v. Coverage In Pharmaceutical Patents
By Ranjna Mehta-Dutt & Amit Saini | View Link
- Oct
- 2025
Calcutta High Court sets aside IPO's refusal of Pharmacyclics application
By Surendra Sharma | View Link
- Oct
- 2025
Amgen prevails as court reinforces balanced framework for assessing patent eligibility
By Ranjna Mehta-Dutt & Himani Pandey | View Link
- Sep
- 2025
scope of Section 104A in biologics dispute involving process patents
By Ankush Verma | View Link
- Sep
- 2025
How India’s new guidelines are making sense of patents in the age of AI
By Pankaj Soni | View Link
- Sep
- 2025
Conflicting High Court rulings on process claims under Section 3(d)
By Ranjna Mehta-Dutt & Simran Singh | View Link
- Aug
- 2025
Ever Evolving Jurisprudence Of Divisional Patent Applications
By Kanika Kamboj | View Link
- Jul
- 2025
Pankaj Soni weighs in on the debate of 'quality v. quantity' that has arisen in the wake of rising patent grants
By Pankaj Soni | View Link
- Jul
- 2025
Judiciary’s liberal approach to auxiliary claim sets
By Ankush Verma | View Link
- Jul
- 2025
Divergent Judicial Views On The Scope Of Patent Amendments
By Ranjna Mehta-Dutt & Himani Pandey | View Link
- Jul
- 2025
Court clarifies patentability criteria under Section 3(b)
By Surendra Sharma | View Link
- Jul
- 2025
Known substance must be identified: IPO to reconsider patent application refusal
By Ankush Verma | View Link
- May
- 2025
Bombay High Court Clarifies distinction between examination and pre-grant opposition
By Ankush Verma | View Link
- Apr
- 2025
Philips wins big in SEP damages award as court ends 13-year battle
By Sanhita Chatterjee | View Link
- Mar
- 2025
Madras High Court at odds with Indian Patent Office over prosecution process
By Shukadev Khuraijam & Shaily Agarwal | View Link
- Mar
- 2025
“The law helps those who do not sleep”
By Sanhita Chatterjee | View Link
- Feb
- 2025
Court sheds light on confidentiality club adherence
By Shukadev Khuraijam & Dr. Govind Chate | View Link
- Feb
- 2025
Balanced approach to procedural irregularities needed as High Court quashes IPO refusal
By Himani Pandey | View Link
- Jan
- 2025
Blackberry: patentability of software-implemented inventions based on technical contribution
By Ritushka Negi | View Link
- Dec
- 2024
IPO rejection reversal: patent eligibility of biological processes involving human intervention
By Shukadev Khuraijam & Himani Pandey | View Link
- Dec
- 2024
Madras High Court cements scope of protection for non-murine antibodies
By Shukadev Khuraijam & Himani Pandey | View Link
- Dec
- 2024
Delhi High Court grants patent to electronic payment invention
By Surendra Sharma | View Link
- Dec
- 2024
Methods Of Treatment Of Plants Are Patentable
By Ankush Verma | View Link
- Oct
- 2024
Court clarifies Section 3(d) objections in setting aside Indian Patent Office refusal order
By Ranjna Mehta-Dutt & Himani Pandey | View Link
- Sep
- 2024
India’s electric vehicle market well placed to move into top gear
By Sanhita Chatterjee | View Link
- Sep
- 2024
Microsoft granted computer program patent following Madras High Court eligibility ruling
By Surendra Sharma | View Link
- Aug
- 2024
Code of conduct for patent and trademark agents
By Surendra Sharma | View Link
- Jul
- 2024
Division bench directs Oppo to supply guarantee from Indian bank in SEP dispute
By Surendra Sharma | View Link
- Jul
- 2024
Unprecedented damages award in antenna technology dispute
By Sanhita Chatterjee | View Link
- Apr
- 2024
Delhi High Court rules on process for amending patent claims during PCT application entry into India
By Ranjna Mehta-Dutt & Himani Pandey | View Link
- Mar
- 2024
Landmark ruling in pharma appeal cements scope of product-by-process claims
By Ranjna Mehta-Dutt & Himani Pandey | View Link
- Mar
- 2024
IPO draws distinct line between examination and opposition proceedings in popcorn box patent dispute
By Ritushka Negi & Anupam Singh | View Link
- Feb
- 2024
Successful Novartis appeal provides critical clarification on India’s pre-grant opposition process
By Pankaj Soni | View Link
- Oct
- 2023
Delhi High Court underscores importance of strict adherence to procedural rules in post-grant oppositions
By Ranjna Mehta-Dutt & Himani Pandey | View Link
- Sep
- 2023
Evolution of the patenting of computer-related inventions in India
By Pankaj Soni & Neha Malhotra | View Link
- Sep
- 2023
Delhi High Court clarifies scope of product-by-process claims in landmark pharma ruling
By Shukadev Khuraijam & Himani Pandey | View Link
- Jul
- 2023
Indian Patent Office’s pre-grant opposition rejection proves promising for patent jurisprudence
By Ritushka Negi & Anupam Singh | View Link
- Jun
- 2023
Why utility models could be crucial for domestic SME innovation in India
By Ritushka Negi & Aditi Manhas | View Link
- May
- 2023
Diabetes drug ruling attempts to provide clarity amid pharma enforcement struggle
By Shukadev Khuraijam & Himani Pandey | View Link
- Feb
- 2023
Unpacking the complexity of amending a patent application in India
By Pankaj Soni & Surendra Sharma | View Link
- Jun
- 2022
Delhi High Court reaches landmark decision on patent examination report deadlines
By Pankaj Soni & Vineet Rohilla | View Link
- Mar
- 2022
Women and the practice of patent law - Ranjna Mehta-Dutt says, "women bring excellent practical workable solutions to the table".
By Ranjna Mehta-Dutt | View Link
- Mar
- 2022
Optical fibre technology: patent filing trends in India
By Ritushka Negi & Mandeep Kaur Gill | View Link
- Dec
- 2021
Covid-19 related patent waivers, vaccine equity issues and more - Shukadev Khuraijam comments on developments
By Shukadev Khuraijam | View Link
- Sep
- 2021
Positive outlook for India’s patent regime in a pandemic age
By Shukadev Khuraijam | View Link
- Jun
- 2021
Finding the solution – is a waiver of IP rights a panacea for the pandemic?
By Shukadev Khuraijam | View Link
- Oct
- 2019
Patent infringement defences – India’s Bolar story so far
By Shukadev Khuraijam & Sunali Sharma | View Link
- May
- 2019
How Is The Patent World Responding To The AI Revolution?
By Pankaj Soni | Download PDF
- Oct
- 2018
Are we ready for AI disruption? An Indian patent law perspective
By Pankaj Soni & Kartikay Vikrant Singh | Download PDF
- May
- 2018
Working Of Patents In The Indian Perspective – What Should ‘Work’?
By Debashish Banerjee & Ranjna Mehta-Dutt | Download PDF
- Apr
- 2018
The Quest for Clarity – India’s Working Requirement
By Pankaj Soni & Surendra Sharma | Download PDF
- Dec
- 2017
Injunctive Relief in SEP Litigation: What Makes Sense In India
By Pankaj Soni | Download PDF







