How To File A Patent In India? Patent Rights, Infringement & Legal Remedies
Introduction
Every groundbreaking invention begins with an idea. A scientist developing a new medicine, an engineer designing an advanced machine, or a startup creating innovative technology all invest enormous effort into innovation. However, without legal protection, competitors may copy and commercially exploit these inventions without permission. Patent law protects inventors against such unauthorized use.
A patent gives an inventor exclusive legal rights over an invention for a limited period, preventing others from:
Manufacturing it
Using it
Selling it
Importing it
Commercially exploiting it, without authorization.
In India, patents are regulated under The Patents Act, 1970 and The Patents Rules, 2003. The Indian patent system aims to strike a balance between rewarding innovation, and protecting public interest. Patents encourage inventors to disclose their inventions publicly in exchange for temporary monopoly rights.
What is a Patent?
A patent is a statutory right granted by the government to an inventor for an invention that fulfills specific legal conditions. The patent holder receives an exclusive monopoly over the invention for 20 years from the filing date. During this period, others cannot use the invention commercially without permission.
Essential Requirements for Patentability:
For an invention to qualify for patent protection in India, it must satisfy three major conditions.
1. Novelty The invention must be completely new. It should not have been:
Published
Used publicly
Patented previously
Known anywhere in the world, before the filing date.
2. Inventive Step The invention must involve technical advancement or economic significance. It should not be obvious to a person skilled in the relevant field.
3. Industrial Applicability The invention must be capable of practical industrial use or manufacture. Purely theoretical ideas cannot be patented.
4. Example of Patent Protection Suppose a pharmaceutical company develops a new drug formula that effectively treats a disease. Once patented:
Competitors cannot manufacture or sell the same drug formula without authorization.
The patent owner may license the invention for royalty income.
Unauthorized use may lead to patent infringement proceedings.
What are the types of Patents in India?
India recognizes several categories of patent-related protections.
Type | Description | Example |
| Utility Patent | Protects functional inventions | Engine, machine, medicine |
| Design Protection | Protects ornamental features | Bottle shape, gadget design |
| Provisional Patent | Temporary filing for incomplete invention | Prototype technology |
| Patent of Addition | Improvement over existing patent | Software enhancement |
What are Utility Patents? Utility patents are the most common patents in India. They protect:
Machines
Chemical compositions
Manufacturing processes
Mechanical inventions
Technological innovations
These patents provide complete commercial protection.
When should you file a Provisional Patent for your Invention?
A provisional specification allows inventors to secure an early filing date before the invention is fully complete. Benefits include:
Temporary protection
Time for further research
Priority claim over later applicants
A complete specification must generally be filed within 12 months.
Who Can Apply for a Patent?
Under Section 6 of the Patents Act, the following persons may apply:
True and first inventor
Assignee of the inventor
Legal representative of deceased inventor
Applications may be filed by:
Individuals
Startups
Small entities
Companies
Research institutions
Foreign nationals
Foreign applicants generally file through registered Indian patent agents.
What cannot be patented in India?
Certain inventions are excluded from patent protection under Sections 3 of the Patents Act.
Non-Patentable Subject Matter The following generally cannot be patented:
Scientific principles
Mathematical methods
Business methods
Algorithms
Computer programs “per se”
Discovery of natural substances
Traditional knowledge
Methods of agriculture
Plants and animals
Atomic energy inventions
What is the Step-by-Step process for filing a Patent in India?
Patent filing involves several legal and technical stages.
Step 1 – Patent Search Before filing, conduct a detailed patent search to verify novelty. Search databases include:
Indian Patent Advanced Search System (InPASS)
WIPO database
Google Patents
This helps avoid rejection for prior art.
Step 2 – Drafting Patent Specification The specification is the most important part of the application. It contains:
Title of invention
Technical field
Background
Detailed description
Claims
Drawings
A poorly drafted patent may become unenforceable later.
Step 3 – Filing the Patent Application Applications may be filed online, or physically at Patent Offices in Delhi, Mumbai, Chennai, or Kolkata. The application receives a filing date and application number.
Step 4 – Publication of Patent The application is published after 18 months. Applicants may request early publication for faster processing. Publication allows public access to invention details.
Step 5 – Request for Examination Under Form 18, examination must be requested within 48 months from filing. Failure to request examination may result in abandonment.
Step 6 – Examination by Patent Office The Patent Examiner evaluates Novelty, Inventive step, Industrial applicability and Patentable subject matter The Examiner issues a First Examination Report (FER).
Step 7 – Reply to Objections Applicants must respond to objections raised in the FER. Responses may involve clarifications, amendments and technical explanations Hearings may also be conducted.
Step 8 – Grant of Patent If the Controller is satisfied, the patent is granted and published in the Patent Journal. The inventor then receives enforceable patent rights.
What documents are required for Patent Filing?
Document | Purpose |
| Form 1 | Patent application |
| Form 2 | Specification |
| Form 3 | Foreign filing declaration |
| Form 5 | Inventorship declaration |
| Form 26 | Patent agent authorization |
| Priority Documents | International filing proof |
What rights does a Patent Owner get after Patent Registration?
Once a patent is granted under the Patents Act, 1970, the patent holder receives exclusive legal rights over the invention for 20 years from the filing date. These rights allow the inventor or company to fully control how the invention is commercially used in the market.
A patent owner has the legal right to:
Manufacture or produce the patented product or technology
Use the invention for commercial purposes
Sell or distribute the patented product in the market
Import the patented invention into India
License the patent to another company in exchange for royalty or fees
Transfer or assign ownership of the patent to another person or business
These exclusive rights help inventors recover research and development costs while preventing competitors from copying the invention without permission.
If any person or company uses, manufactures, sells, or imports the patented invention without authorization, it amounts to patent infringement under the Patents Act, 1970. In such cases, the patent owner can file a legal case seeking injunction, damages, compensation, and seizure of infringing goods.
For startups and businesses, patent rights also increase market value, investor confidence, and commercial opportunities through licensing and technology partnerships.
Can you Sell or License your Patent in India? Understand your Commercial Rights
Patents are valuable business assets. Patent owners may:
Sell patents outright
License technology
Earn royalties
Enter joint ventures
Attract investors
Many startups use patents to improve valuation during fundraising.
Patent Infringement in India
Patent infringement occurs when a person uses a patented invention without permission. Examples include:
Manufacturing patented products
Selling patented technology
Importing infringing goods
Using patented processes commercially
What should you do immediately after Patent Infringement?
Collect Evidence of Infringement: Immediately gather invoices, advertisements, website screenshots, product packaging, import records, brochures, and samples showing unauthorized use of your patented invention. Proper evidence strengthens your legal case and helps establish infringement before the court.
Verify Your Patent Status: Ensure your patent is granted, valid, and renewed under the Patents Act, 1970. Keep copies of the patent certificate, renewal receipts, patent claims, and registration details ready before initiating legal action.
Contact a Patent Lawyer Immediately: Consult an intellectual property lawyer as early as possible. A patent expert can analyze infringement, compare technical claims, assess damages, and advise the best legal strategy to protect your patent rights effectively.
Send a Legal Notice to the Infringer: A legal notice formally warns the infringing party to stop unauthorized manufacture, sale, import, or commercial use of the patented invention. Many disputes are resolved through settlement after receiving a strong legal notice.
Preserve Financial Loss Records: Maintain records of business losses, reduced sales, market damage, licensing loss, or profit diversion caused by infringement. These documents help calculate compensation, damages, and account of profits during court proceedings.
File a Patent Infringement: Suit If the infringer continues unauthorized activities, file a patent infringement case before the appropriate Commercial Court or High Court seeking injunction, damages, seizure of goods, and other legal remedies under the Patents Act.
What are the Legal Remedies for Patent Infringement?
Injunction: The court may pass an injunction order stopping the infringer from manufacturing, selling, advertising, importing, or commercially using the patented invention during the pendency of the case or permanently after the final judgment.
Damages: The patent owner can claim monetary compensation for financial losses suffered due to unauthorized use of the patented invention, including loss of sales, market reputation, business opportunities, and commercial profits.
Account of Profits: The court may direct the infringing party to disclose and surrender profits earned through illegal use, manufacture, sale, or distribution of the patented product or patented technology without authorization.
Seizure of Goods: The court can order seizure, confiscation, or destruction of infringing goods, machinery, packaging materials, advertisements, and related products to prevent further unauthorized sale or circulation in the market.
Customs Enforcement: Patent owners may approach Customs Authorities to stop import or export of infringing products under Intellectual Property Rights Enforcement Rules, helping prevent counterfeit or unauthorized patented goods from entering India.
What can be the defenses against Patent Infringement?
Common defences include:
Patent invalidity
Lack of novelty
Prior use
Expiry of patent
Experimental use exception
License authorization
Courts evaluate technical evidence carefully before deciding infringement.
Landmark Patent Judgments in India
1. Novartis AG v. Union of India (2013)
The case involved Novartis seeking a patent for a modified version of the anti-cancer drug “Glivec.”
The Supreme Court examined Section 3(d) of the Patents Act, 1970, which restricts patents on new forms of known substances unless they show enhanced therapeutic efficacy.
The Court held that the modified drug did not show significant improvement in therapeutic effectiveness.
The judgment prevented “evergreening” of pharmaceutical patents where companies make minor modifications only to extend monopoly rights.
It strengthened access to affordable medicines and protected India’s generic pharmaceutical industry.
This judgment became one of India’s most important public health and patent law decisions globally.
2. F. Hoffmann-La Roche Ltd. v. Cipla Ltd. 2009
Roche alleged that Cipla infringed its patent relating to the cancer drug “Tarceva.”
The Delhi High Court considered both patent rights and public interest concerning affordable life-saving medicines.
The Court examined whether Cipla’s product substantially copied Roche’s patented invention.
Interim injunction was refused considering public access to affordable treatment.
The judgment emphasized balancing intellectual property rights with healthcare needs of patients.
It became a landmark authority on pharmaceutical patent infringement and public interest considerations in India.
3. Bajaj Auto Ltd. v. TVS Motor Company Ltd. 2009
Bajaj Auto accused TVS Motor of infringing its patented twin-spark engine technology.
The dispute involved interpretation of process patents and technological innovation in automobile engineering.
The Supreme Court discussed the importance of speedy disposal of intellectual property disputes.
The Court clarified principles governing interim injunctions in patent matters.
It emphasized balancing innovation protection with fair market competition.
The case became an important precedent in Indian engineering and automobile patent litigation.
International Patent Protection – PCT System
Patent rights are territorial. An Indian patent protects only within India. For international protection, applicants often use the Patent Cooperation Treaty (PCT).
Advantages of PCT Filing PCT provides:
Single international filing system
Extended filing timelines
International search reports
Simplified multi-country protection
However, patents must still be validated country-wise.
Can You Be Penalized for Falsely Claiming a Product Is “Patented” or “Patent Pending”?
Under Section 120, falsely claiming “Patented” or “Patent Pending” May attract fines up to ₹1 lakh. False representation may also create civil liability.
Why are Patents important for Startups business?
Patents significantly benefit startups. They:
Increase business credibility
Attract investors
Prevent copying
Create licensing revenue
Improve valuation
Many investors now examine startup IP portfolios before funding.
Patent Renewal and Maintenance
Indian patents remain valid for 20 years.
Renewal fees must be paid annually beginning from the third year.
Failure to pay renewal fees may cause lapse of the patent.
However, restoration is possible within 18 months upon application.
Conclusion
Patent law plays a critical role in protecting innovation, encouraging research, and supporting economic growth. A properly secured patent grants inventors powerful legal rights over their inventions while enabling commercialization and investment opportunities. Whether you are:
A startup founder
Engineer
Scientist
Pharmaceutical company
Technology innovator
Understanding patent law is essential to protecting your intellectual property.
From filing and examination to commercialization and enforcement, every stage requires careful legal and technical planning. Timely patent registration not only safeguards innovation but also strengthens long-term business value and competitive advantage.
FAQs
1. How long does patent registration take?
Patent registration in India generally takes around 2–4 years depending on examination backlog, technical complexity, objections raised by the Patent Office, opposition proceedings, and how quickly the applicant responds to examination reports.
2. Can software be patented in India?
Software alone cannot usually be patented in India unless it shows a technical effect, technical advancement, or integration with hardware. Pure business methods, algorithms, and computer programs “per se” remain non-patentable under law.
3. What happens if renewal fees are not paid?
If renewal fees are not paid within the prescribed time, the patent may lapse and protection ends. However, the patent owner can apply for restoration within 18 months by paying fees and explanation.
4. Can patents be sold?
Yes. A patent owner can legally sell, assign, transfer, or license patent rights to another individual or company through a written agreement registered with the Patent Office under applicable patent laws.
5. Does an Indian patent provide worldwide protection?
No. An Indian patent protects inventions only within India. Separate patent applications must be filed in other countries individually or through the Patent Cooperation Treaty (PCT) for international patent protection.
