IP Intelligence › Real Scenarios › Two inventors, one invention
Real-life scenario · fictionalised
Two inventors, one invention
A researcher in Pune and a small team in Coimbatore independently arrive at the same approach to balancing cells in a battery pack, within about five months of each other. Neither knows about the other. The Coimbatore team files first. The Pune researcher, who has notebooks and dated test data going back two years, files eight months later.
Does the earlier inventor win?
First to file, not first to invent
India is a first-to-file system. The date that matters is the priority date of the application, not the date the invention was made. The Pune researcher's notebooks prove she invented it - and give her no right.
Worse, once the Coimbatore application publishes, it becomes prior art. Depending on dates and content, it can be cited against the later application for novelty.
What independent invention does tell you
It is a signal about obviousness that cuts both ways. Two teams arriving at the same solution independently is sometimes used to argue that the solution was obvious to the skilled person. It can equally be evidence that the field had a real problem and this was the answer.
More practically, it means that if you think you are the only person working on something, you are probably wrong.
What should have happened
- Filed as soon as the invention could be described well enough to be performed - not when it felt finished.
- Treated the notebook as evidence of inventorship, not as a substitute for a filing date.
- Monitored publications in the field, so that a competing application would have been spotted at publication.
- Considered a provisional filing at the point where the approach was first shown to work.
A lab notebook proves who invented it. An application decides who owns it.
This scenario is a composite teaching example written by Ragulika IP. It does not describe any real client, application or matter, and any resemblance to a specific case is coincidental.
Sources & further reading
- The Patents Act, 1970 (consolidated to 1 August 2024) — Official IP India text
Related
If I invented it independently, nobody else can have it patented.
Independent invention is common and is not a defence. India is a first-to-file system: the person who filed first prevails, whatever you can prove about when you had…
The danger of filing too late
Late filings fail in three different ways, and only one of them is about competitors. Your own disclosure becomes prior art against you. Somebody else files first. A…
Priority date
The earliest date to which a claim is entitled - usually the date of your first filing for that subject matter. Prior art is judged against it.
Thinking about filing?
Before anything is drafted, the useful work is establishing what is already public, what is genuinely yours, and what you can honestly claim.
Educational guidance, not legal advice. This material is published by Ragulika IP for general education and information. It is not legal advice, it does not create a professional-client relationship, and it is not a substitute for advice on your own facts. Patentability, infringement, prosecution strategy and every other IP outcome turn on the specific facts and on the law and Patent Office practice as they stand at the time you act. Please take professional advice before making a decision, and read the underlying provision or judgment before relying on any point stated here.
Last reviewed by Ragulika IP on 2026-08-23. Indian patent law and Patent Office practice change; check the position before you rely on it.