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Patent criticality
Claim 1 describes your product instead of your invention
Why is my patent easy to design around?
Claim 1 is the patent. If it recites the specific product you happened to build - your materials, your dimensions, your architecture - then a competitor only has to change one of those things to walk away clean, and everything else in the document is decoration.
What actually happens
An inventor describes the prototype. The draft follows the description. Claim 1 ends up as an accurate account of one machine: this housing, this sensor, this arrangement, this material.
Every one of those details is a condition an infringer must meet. A claim with nine features is infringed only by something that has all nine. Competitors do not need to invent around a patent - they need to miss one feature, and a claim written from a prototype hands them a list to choose from.
What claim 1 should actually contain
The right question is not what you built but what makes it work. Strip away everything that is a design choice and keep only what is technically necessary to achieve the effect. If the invention works with any elastomer, do not say silicone. If the geometry is what matters and not the material, claim the geometry.
Then do the opposite exercise: write down the cheapest, ugliest version of your invention a competitor could ship. If claim 1 does not catch it, claim 1 is too narrow - and this is the moment to fix it, because after filing you can only narrow, never widen.
Sections 10(4)(c) and 10(5) of the Patents Act 1970 require claims defining the scope of the invention, fairly based on the matter disclosed.
Broad claims attract more objections during examination. That is a cost, not a reason to file narrow - a broad claim can be narrowed later; a narrow one cannot be widened.
Draft claim 1 for the invention and use dependent claims for the product.
Treating a granted narrow claim as a success. A patent narrowed to your exact commercial embodiment mostly tells competitors where the fence is.
Specific materials, exact ranges, brand names and part numbers appearing in claim 1.
Read claim 1 out loud and ask, feature by feature, whether removing it would stop the invention working. Anything that survives that test may not belong there.
Sources & further reading
- The Patents Act, 1970 (consolidated to 1 August 2024) — Official IP India text
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Adding words does not make a claim stronger
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The patent that only covers what you already sell
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More claims mean a stronger patent.
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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.