IPR
Topic 49 Intro Patent Law
Topic 49 — Introduction to Patent Law
A patent is a statutory monopoly granted by the State to an inventor for a fixed term, in exchange for full disclosure of the invention to the public. The bargain is straightforward: the inventor enjoys exclusive commercial rights for 20 years; in return, the public learns how to make and use the invention, and after the term expires, may freely exploit it. The Indian Patents Act 1970, in force from 1972 and substantially amended in 1999, 2002, and 2005 to comply with TRIPS, governs the Indian patent regime. The 2005 Amendment was particularly transformative — it introduced product patents in pharmaceuticals, food, and chemicals (previously only process patents were available) and added the now-famous Section 3(d) anti-evergreening provision. This topic introduces the conceptual framework, the patent bargain, the post-2005 statutory architecture, and the institutional landscape after the abolition of the IPAB.
1. The Concept of a Patent
A. The Patent Bargain
Patent law operates on a contractual logic — the State and the inventor strike a bargain:
1 INVENTOR gets 20-year monopoly | 2 PUBLIC gets full disclosure | 3 AFTER 20 YEARS invention enters public domain |
✅ Why the bargain works Inventors receive an exclusive monopoly that lets them recoup R&D investment and earn supranormal profits. The public receives: · Disclosure — the patent specification teaches the invention to anyone who can read it. · Innovation — the monopoly encourages further inventions building on the disclosed teachings. · Eventual freedom — after 20 years, the invention enters the public domain and can be freely copied. Patent law thus serves a dual function: it incentivises invention through the monopoly, AND drives innovation through the disclosure that competitors can build upon. |
2. Statutory Definition of "Invention"
‘Invention [Section 2(1)(j), Patents Act 1970]’ — means a new product or process involving an inventive step and capable of industrial application. |
A. The Three Statutory Tests
Section 2(1)(j) embeds the three classical patentability requirements:
- Novelty — the invention must be new; not anticipated by prior art.
- Inventive step — the invention must not be obvious to a person skilled in the art.
- Industrial application — the invention must be capable of practical use in industry.
B. Section 2(1)(ja) — Inventive Step
Section 2(1)(ja) — Inventive Step "Inventive step" means a feature of an invention that involves technical advance as compared to the existing knowledge or having economic significance or both and that makes the invention not obvious to a person skilled in the art." |
✅ India's unique inventive step formulation Section 2(1)(ja) added by the 2005 Amendment is unique to Indian patent law. It requires (i) technical advance OR economic significance OR both, AND (ii) non-obviousness to a person skilled in the art. The "economic significance" element is unusual internationally — most jurisdictions assess inventive step purely on technical grounds. Indian courts have cautiously applied the economic-significance test, generally treating it as additional rather than substitute for technical advance. |
3. The Architecture of the Patents Act 1970
Chapter | Sections | Subject |
|---|---|---|
I | 1-2 | Preliminary — short title; definitions. |
II | 3-5 | Inventions not patentable (Sections 3 and 4). |
III | 6-11A | Persons entitled to apply; provisional and complete specifications. |
IV | 12-24 | Examination and opposition. |
IVA | 24A-24F | Exclusive Marketing Rights — DELETED (post-2005 with introduction of product patents). |
V | 25-28 | Pre-grant and post-grant opposition. |
VI-IX | 29-53 | Anticipation, secrecy, infringement, etc. |
X | 54-56 | Patents of addition. |
XII | 60-66 | Restoration; amendment of specification; surrender; revocation. |
XIV | 67-72 | Register of Patents. |
XV | 73-76 | Working of patents. |
XVI | 82-94 | Compulsory licensing (Section 84 et seq.). |
XVII | 99-103 | Use of inventions for purposes of government. |
XVIII | 104-115 | Suits concerning infringement. |
XIX | 116-119 | Appeals — to High Court (post-2021). |
4. Historical Evolution of Indian Patent Law
Year | Legislation / Event | Significance |
|---|---|---|
1856 | Act VI of 1856 | First patent statute in India; modelled on British Statute of Monopolies 1623. |
1911 | Patents and Designs Act 1911 | Comprehensive consolidation; covered patents and designs. |
1959 | Ayyangar Committee Report | Recommended major changes including process-only patents in pharmaceuticals. |
1970 | Patents Act 1970 | Replaced 1911 Act; in force from 20 April 1972; only process patents in pharmaceuticals/food/chemicals; 14-year term for these (7 from filing). |
1995 | TRIPS Agreement | India became WTO member; obligations to comply with TRIPS Articles 27-34. |
1999 | First Amendment | Mailbox provision (Section 5(2)) and Exclusive Marketing Rights for pharmaceutical/agrochemical applications filed since 1995. |
2002 | Second Amendment | Introduced 20-year uniform patent term (replacing 14-year); strengthened rights of patent holder. |
2005 | Third Amendment | PRODUCT PATENTS in pharmaceuticals, food, chemicals; Section 3(d) anti-evergreening; Section 11A pre-grant opposition; Section 25 post-grant opposition. |
2021 | Tribunals Reforms Act | IPAB abolished; appeals transferred to High Courts. |
✅ The 2005 Amendment — a watershed The 2005 Amendment was India's most significant patent law change since 1970. It accomplished three transformative tasks: · Product patents — pharmaceuticals, food, and chemicals became patentable as products (not just processes), bringing India into TRIPS Article 27 compliance. · Section 3(d) — anti-evergreening provision preventing trivial modifications of known substances from getting fresh patent protection. · Pre/Post-grant opposition — Section 11A pre-grant opposition (third parties can oppose during examination) and Section 25 post-grant opposition (within 12 months of grant). The 2005 Amendment's impact has been dramatic: India remained a pharmacy to the developing world (Section 3(d) preserved generic competition for off-patent drugs); but new pharmaceutical innovations now enjoy product-patent protection (driving multinational pharmaceutical R&D investment in India). |
5. Patentable Subjects and Excluded Subjects
A. What Is Patentable
Section 2(1)(j) defines "invention" as a new product OR process. Both products and processes are patentable. Specific examples:
- Products — chemical compounds, pharmaceutical substances, mechanical devices, electronic components, agricultural chemicals.
- Processes — manufacturing processes, methods of producing chemicals, biotechnology methods, software-implemented industrial processes.
- Composition of matter — alloys, polymers, formulations, mixtures with novel properties.
- Improvements — incremental advances on existing technologies that satisfy novelty + inventive step.
B. Section 3 — What Is NOT Patentable
Section 3 of the Patents Act 1970 lists 16 categories of subject matter that are NOT patentable. The most important are:
Sub-section | Excluded subject matter |
|---|---|
Section 3(a) | Frivolous inventions or those contrary to natural laws (e.g., perpetual motion machines). |
Section 3(b) | Inventions contrary to public order or morality; harmful to health or environment. |
Section 3(c) | Mere discovery of a scientific principle or natural phenomenon. |
Section 3(d) | New form of known substance not enhancing efficacy; mere admixture; mere arrangement. |
Section 3(e) | Mere admixture without synergistic effect. |
Section 3(f) | Mere arrangement or rearrangement of known devices. |
Section 3(h) | A method of agriculture or horticulture. |
Section 3(i) | Method of treatment of humans or animals (medical, surgical, diagnostic). |
Section 3(j) | Plants and animals in whole or part; essentially biological processes. |
Section 3(k) | Mathematical methods, business methods, computer programs per se, algorithms. |
Section 3(l) | Literary, dramatic, musical, artistic works (covered by copyright). |
Section 3(m) | Scheme, rule, method of performing mental act, playing game. |
Section 3(n) | Presentation of information. |
Section 3(o) | Topography of integrated circuits. |
Section 3(p) | Inventions effectively traditional knowledge. |
✅ Section 3(d) — the global icon Section 3(d) is the most globally discussed Indian patent provision. It excludes from patentability: · Mere discovery of a new form of a known substance which does not result in enhancement of known efficacy. · Mere discovery of any new property or new use for a known substance. · Mere use of a known process unless it results in a new product. The Supreme Court in Novartis v. Union of India (2013) held that "efficacy" means therapeutic efficacy in pharmaceutical contexts; mere increase in bioavailability is not "enhanced efficacy". Section 3(d) is the operational anti-evergreening provision and the topic of extensive international policy debate. |
C. Section 4 — Atomic Energy
Section 4 "No patent shall be granted in respect of an invention relating to atomic energy falling within sub-section (1) of section 20 of the Atomic Energy Act, 1962." |
Section 4 excludes inventions relating to atomic energy from patentability. The exclusion serves national security and the State's monopoly over nuclear technology.
6. International Patent Framework
Treaty | Year | India's Status | Relevance |
|---|---|---|---|
Paris Convention | 1883 | Acceded 1998 | National treatment; right of priority (12 months for patents). |
Patent Cooperation Treaty (PCT) | 1970 | Acceded 1998 | International patent application; national-phase entry within 30/31 months. |
TRIPS Agreement | 1995 | Original WTO Member | Articles 27-34 — minimum substantive standards for patents. |
Budapest Treaty | 1977 | Acceded 2001 | Deposit of microorganisms for patent purposes. |
Patent Law Treaty | 2000 | NOT a member | Procedural harmonisation. |
UPOV | 1961 | NOT a member; PPV&FR Act 2001 follows different model | Plant variety protection. |
7. Institutional Architecture
A. The Indian Patent Office
The Indian Patent Office, headquartered in Kolkata with branches in Delhi, Mumbai and Chennai, administers the Patents Act. Functions:
- Examination of patent applications.
- Grant of patents.
- Maintenance of the Register of Patents.
- Pre-grant and post-grant opposition proceedings.
- Compulsory licensing applications.
B. The Controller General of Patents, Designs and Trade Marks (CGPDTM)
The CGPDTM heads the Office and exercises the powers of "Controller" under the Patents Act. Reports to the Department for Promotion of Industry and Internal Trade (DPIIT) under the Ministry of Commerce and Industry.
C. Adjudicatory Forum after 2021
Forum | Jurisdiction |
|---|---|
Patent Office (Examiner / Assistant Controller) | Original — examination, hearings. |
Controller of Patents | Original — grant, refusal, opposition decisions. |
High Court (IP Division / Commercial Division) | Appeals from Controller (post-2021); revocation under Section 64; civil suits above pecuniary limit. |
Commercial Courts (district level) | Civil suits within commercial-court limit and pecuniary jurisdiction. |
Supreme Court of India | Special leave / appeal under Article 136. |
✅ IPAB abolition impact on patents The Tribunals Reforms Act 2021 abolished the IPAB on 4 April 2021. Before 2021, all patent appeals (Section 117A) and revocations went to the IPAB. Post-2021, these matters go to the High Court of the territorial jurisdiction. The Delhi HC IP Division (since July 2022) has emerged as the most active forum for patent appeals and revocations, with dedicated IPD benches and the High Court of Delhi Rules Governing Patent Suits 2022. |
8. Patent in the IP Landscape
Feature | Patent | Trademark | Copyright | Design |
|---|---|---|---|---|
Subject matter | Inventions | Distinctive signs | Original expression | Aesthetic appearance |
Term | 20 years (non-renewable) | 10 years renewable | Life + 60 years | 10 + 5 years |
Source of right | Grant | Use + registration | Creation | Registration |
Examination | Substantive | Substantive | No (formality only) | Limited |
International filing | PCT | Madrid Protocol | Berne automatic | No system India is part of |
Disclosure required | Full enabling disclosure | Limited | Inherent in registration | Drawings |
Renewable | No | Yes (indefinitely) | No | Yes (once) |
Working requirement | Yes (Section 84 et seq.) | Yes (Section 47) | No | No |
🎯 EXAM POINTERS — TOPIC 49
|