A new machine, tool, part, consumer product or manufacturing process can be patented in India if it is new, not obvious to an expert in the field, and capable of industrial use. Section 3(f) excludes a mere arrangement or duplication of known devices that each work independently, so the parts must work together to produce a new result. If what is new is only the product's shape or appearance, design registration is the right protection.
- Registered patent agentsPatent work is handled only by agents registered with the Indian Patent Office
- NDA before you shareWe sign a non-disclosure agreement before you send any technical details
- Your idea stays yoursNothing is filed or published without your written approval
- Free first reviewA registered patent agent tells you if it is worth filing, before you pay
Usually patentable
- New machines, mechanisms, tools and equipment
- Improvements to existing products that give a new technical result
- Manufacturing and assembly processes
- Components and parts, including for automobiles and appliances
Usually not patentable
- Known devices placed side by side that each do their own job (Section 3(f))
- A product whose only new feature is its shape or look (use design registration)
- Obvious changes: different material, size or colour with no new effect
- Anything you have already sold, shown online or demonstrated publicly before filing
The inventive step is where most product ideas fail
Novelty is rarely the problem for product inventions; inventive step is. Examiners combine two or three earlier documents and ask whether an expert would have arrived at your product. Changing a material, scaling it up, or adding a known feature usually counts as obvious unless it produces an unexpected result.
Section 3(f): combinations must interact
Section 3(f) excludes "the mere arrangement or re-arrangement or duplication of known devices each functioning independently of one another in a known way". The classic example is a torch fixed to an umbrella: two known things, each doing what it always did.
A combination is patentable when the parts work together to give a result neither gives on its own, for example a blade and a guard linked so the guard moves the blade to a safe position.
Patent or design registration?
| Patent | Design registration | |
|---|---|---|
| Protects | How the product works: function, mechanism, process | How it looks: shape, configuration, pattern, ornament |
| Term | 20 years | 10 years, extendable by 5 to a maximum of 15 |
| Test | New, inventive, industrially applicable | New or original appearance, not previously published |
| Typical time to grant | Usually a few years; faster with expedited examination | Usually several months |
| Best for | Mechanisms, tools, machines, processes | Consumer products sold on looks: bottles, furniture, gadgets |
Many products need both. See design registration.
Don't sell, post or pitch before you file
Selling the product, posting it on Instagram or YouTube, listing it on a marketplace or pitching it on stage can all count as public disclosure, which can destroy novelty. India's grace periods are very narrow. File a provisional application with drawings and a description first; it secures your date for 12 months while you refine the product.
What to prepare
- Drawings or CAD images showing the parts and how they connect
- A description of the problem with existing products and how yours solves it
- Variations: other materials, sizes or configurations that would still work (so a copier can't make a small change and escape)
- Any prototype test results
Start with a patent search to see what already exists. It tells you whether to file, and how to claim around the closest prior art.
Frequently asked questions
Can I patent an improvement to an existing product?
Yes, if the improvement is new and not obvious and gives a technical benefit. You can only stop others using your improvement, not the original product.
I combined two existing products. Can I patent it?
Only if the parts interact to produce a new result. If each part simply works as it did before, Section 3(f) excludes it.
I've already started selling. Is it too late to patent?
Usually yes in India, because your own sale or publication counts against you. Talk to a patent agent quickly: there are narrow exceptions, and design or trademark protection may still be available.
Do I need a prototype to file a patent?
No. You need to describe the invention well enough for an expert to make it. Drawings and a clear description are enough.
Patent guides for other technologies
Software and apps · AI and machine learning · Pharma and formulations · Medical devices and diagnostics · EV, battery and clean-tech · Agritech and food processing
Not sure about your invention? Try our free patentability checker.
Also read: What cannot be patented in India · How to patent an idea in India
This guide is general information, not legal advice. Whether your invention can be patented depends on its details and the prior art; speak to a registered patent agent about your case.