What a Patent Is
Chapter One
Syllabus topic 1.1, "Introduction, definition, scope and objectives of Law of Patents"
Pages 1 to 4 of 524
In one line
A patent is a right the State gives an inventor to stop everyone else from using their invention for twenty years, given in exchange for the inventor telling the public exactly how it works.
In the wording a student can write in an exam: by section 2(1)(m) of the Patents Act, 1970, a "patent" means a patent for any invention granted under this Act, and by section 48 it confers on the patentee the exclusive right to prevent third parties, who do not have his consent, from making, using, offering for sale, selling or importing the patented product or using the patented process in India.
Why the law needs a word for this at all
An idea cannot be owned the way a field can. If a farmer plants wheat, nobody else can plant on that soil at the same time. If an engineer works out a better way to seal a plastic pouch, everybody can use that method at once, and the engineer loses nothing physical by their doing so. Economists call this non-rivalrous, meaning that one person's use does not exhaust it.
That is very good for society and very bad for the engineer. The moment the method is published, a competitor who spent nothing on the years of failed experiments can copy it and undercut the price. Knowing this in advance, a rational engineer either does not spend the years, or spends them and then keeps the method secret for ever.
A patent is the law's attempt to escape both bad outcomes. It creates, artificially and for a fixed period, the one thing an idea does not naturally have, which is exclusivity. In return it demands the one thing secrecy denies, which is publication. Chapter 20 works through whether this bargain is a good one.
The five things a patent is, and is not
One: it is a negative right, not a positive one. Section 48 gives "the exclusive right to prevent third parties" from doing certain acts. It does not give the patentee any right to work the invention. A patented drug still needs the approval of the Central Drugs Standard Control Organisation; a patented weapon still needs a licence under the Arms Act. This is the single most common misunderstanding of the whole subject.
Two: it is granted by a State and stops at that State's border. An Indian patent is infringed only by an act done in India. Section 48 itself says "in India" twice. There is no such thing as a world patent, and chapter 140 explains what the Patent Cooperation Treaty does and does not do about that.
Three: it is limited in time. Section 53 sets the term at twenty years from the date of filing, and it cannot be renewed. When the term ends, the invention falls into the public domain and anybody may use it. Chapter 360 works through the term and the renewal fees.
What a Patent Is
Four: it is a monopoly bought with a disclosure. The price of the right is the specification, the document in which the inventor must describe the invention fully and particularly and set out the best method of performing it. Chapter 500 works through section 10, which fixes what that document must contain.
Five: it is granted only for an invention. Not for a discovery, not for an idea, not for a business plan, not for a work of art. What counts as an invention is settled by section 2(1)(j) read with sections 3 and 4, and chapters 70 to 120 work through them.
The words a beginner must not confuse
| Word | What it means here | Where it is defined |
|---|---|---|
| Invention | A new product or process involving an inventive step and capable of industrial application | s.2(1)(j) |
| Patent | A patent for any invention granted under the Act | s.2(1)(m) |
| Patentee | The person for the time being entered on the register as grantee or proprietor | s.2(1)(p) |
| Applicant | The person who has applied but has not yet been granted anything | ordinary meaning |
| Specification | The document describing the invention and stating the claims | s.9, s.10 |
| Claim | The numbered sentence at the end of the specification that defines the monopoly | s.10(4)(c) |
| Controller | The Controller General of Patents, Designs and Trade Marks | s.2(1)(b) |
| Patent office | The office referred to in section 74, with its four branches | s.2(1)(r) |
A "patentee" is not the same as an "inventor". The inventor is the human being who devised the invention. The patentee is whoever the register names as owner, which is very often a company. Section 6 lets an assignee apply, and in practice most Indian patents are applied for by employers. Chapter 250 works through who may apply.
A worked example
Sunita Kulkarni is a chemical engineer in Pune. Over four years she works out a way of coating urea granules with a neem extract so that the nitrogen releases slowly instead of washing away in the first rain. She has a product, the coated granule, and a process, the coating method.
What she has at this moment is a trade secret and nothing else. She may keep it to herself and sell the granules. If a competitor buys a bag, analyses the coating and works out the method, the competitor may copy it freely and Sunita has no remedy, because reverse engineering a product lawfully bought is not a wrong.
If she files a patent application instead, she trades the secret for a right. She must file a complete specification describing the coating fully enough for another chemical engineer to repeat it, and claiming precisely what she says is new. Eighteen months later the patent office publishes it and everybody, competitors included, can read it. Chapter 280 works through that publication.
What a Patent Is
If the patent is granted, section 48 lets her stop others. Because she has both a product claim and a process claim, she can sue a competitor who makes the coated granule and also a competitor who uses her coating method on somebody else's granule. Chapter 450 works through why that difference matters.
And in 2045 it all ends. Twenty years from the date of filing, the patent expires, the invention is in the public domain, and any fertiliser company may make the coated granule. That was always the deal.
What it does NOT mean
A patent is not a certificate that the invention works. The Controller examines whether the application satisfies the Act, not whether the machine actually runs. A granted patent can be revoked years later on the ground that it was never new, and chapter 1030 works through the grounds in section 64.
A patent is not a permission to sell. See the first of the five points above. Sunita still needs whatever registration the Fertiliser (Control) Order requires.
A patent is not the same as a trade mark or a copyright. They protect different things, arise differently and last for different periods, and chapter 60 sets them side by side. Students lose marks every year by writing that a patent protects a brand name.
And a patent is not automatic. Copyright arises the moment an original work is fixed. A patent exists only when the Controller grants it, after an application, a publication, an examination and often an opposition. Module II is entirely about that road.
Quick revision
Section 2(1)(m). A patent is a patent for any invention granted under the Act.
Section 48. It confers the exclusive right to prevent third parties without consent from making, using, offering for sale, selling or importing the patented product, or from using the patented process and dealing in the product obtained directly by it, in India.
Section 53. The term is twenty years from the date of filing.
Five defining features: a negative right; territorial; limited in time; bought with a disclosure; available only for an invention.
The bargain in one line: exclusivity for a fixed period, in exchange for teaching the public how to do it.
The commonest error: believing a patent is a licence to work the invention. It is a right to stop others, and nothing more.
Test yourself
1. Define a patent, with the section. Section 2(1)(m) of the Patents Act, 1970: a patent for any invention granted under the Act. Its content is in section 48, which confers the exclusive right to prevent third parties without consent from the acts listed there, in India.
What a Patent Is
2. A company holds an Indian patent for a pesticide. It is refused registration under the Insecticides Act 1968. Can it still sell the pesticide? No. A patent is a negative right. It lets the company stop others from making or selling the pesticide, but it confers no right to sell it, and the separate regulatory approval is still needed.
3. Why does the law insist on publication when the whole value to the inventor lies in secrecy? Because publication is the price of the monopoly. Society grants exclusivity for twenty years so that the knowledge enters the public domain permanently instead of dying with the inventor or living for ever as a secret.
4. For how long does a patent last, and from what date? Twenty years, from the date of filing of the application, under section 53. Not from the date of grant.
The rest of this subject
These notes are cut from the University's printed syllabus. Open the syllabus itself, or the past papers, for the same subject.