PATENTABLE INVENTIONS – COMPREHENSIVE DETAILED ANALYSIS
(Advanced Academic + LLB Exam Oriented + Case Laws + Problem Based Approach)
I. Concept and Philosophy of Patentable Inventions
Patentable invention is not merely a new idea. It is a legally recognized technical solution to a problem that satisfies statutory conditions and contributes to technological advancement.
Patent law is based on three major theoretical justifications:
- Reward Theory – Inventor deserves reward for intellectual labor.
- Incentive Theory – Exclusive rights encourage research and innovation.
- Social Contract Theory – Disclosure of invention in exchange for limited monopoly.
Thus, patentability is not automatic. It is a carefully controlled legal recognition.
In India, patentability is governed by the
.
II. Statutory Definition of Invention
Section 2(1)(j) defines invention as:
A new product or process involving an inventive step and capable of industrial application.
This definition contains three core requirements:
- Novelty
- Inventive Step
- Industrial Application
Additionally, Sections 3 and 4 exclude certain subject matter.
III. NOVELTY – DETAILED ANALYSIS
1. Meaning of Novelty
Novelty means that the invention has not been anticipated by prior art anywhere in the world before the priority date.
India follows the principle of absolute novelty.
Prior Art Includes:
- Publications (books, journals, internet)
- Prior public use
- Prior patents
- Public demonstrations
Even a single prior disclosure destroys novelty.
2. Tests for Novelty
The test is:
Has the invention been publicly disclosed before filing?
If yes → Not novel.
3. Anticipation
Anticipation occurs when prior art contains the same invention.
Example: If a machine was described in a research article earlier, it cannot be patented again.
4. Case Law on Novelty
Bishwanath Prasad Radhey Shyam v Hindustan Metal Industries (1979)
The Supreme Court emphasized that patent must involve novelty and real invention, not mere trade improvement.
5. Problem-Based Illustration
Problem:
A presents his invention at an international conference before filing patent.
Is it patentable?
Answer: No. Public disclosure destroys novelty unless protected under specific statutory exceptions.
IV. INVENTIVE STEP (NON-OBVIOUSNESS) – DETAILED ANALYSIS
Inventive step means the invention must not be obvious to a person skilled in the art.
Section 2(1)(ja) defines inventive step as:
Technical advancement or economic significance making invention non-obvious.
1. Person Skilled in the Art Test
The standard is not ordinary person but a hypothetical skilled professional.
Question: Would a skilled expert find it obvious?
If yes → Not patentable.
2. Mere Workshop Improvement
Small improvements that do not show technical advancement are not patentable.
3. Landmark Case
Novartis AG v Union of India (2013)
The Court denied patent because the modified drug did not show enhanced therapeutic efficacy.
This case strengthened inventive step requirement in pharma.
4. International Influence
Under the
,
member states must grant patents for inventions that are new, involve inventive step, and are industrially applicable.
India complies but interprets inventive step strictly.
5. Problem Example
A changes packaging design of known medicine without improving function.
Patentable?
No. No inventive step.
V. INDUSTRIAL APPLICATION – DETAILED ANALYSIS
Section 2(1)(ac):
Invention must be capable of being made or used in industry.
Pure abstract ideas are not patentable.
Example: A mathematical formula alone → Not patentable.
VI. DETAILED ANALYSIS OF SECTION 3 (NON-PATENTABLE SUBJECT MATTER)
Section 3 lists what are NOT inventions.
Let us analyze each important clause.
1. Section 3(a) – Frivolous Inventions
Perpetual motion machines violate scientific laws.
Not patentable.
2. Section 3(b) – Public Morality
Inventions harmful to life or environment cannot be patented.
Example: Biological weapons.
3. Section 3(c) – Discovery
Discovery of natural substance is not invention.
Example: Discovery of new mineral.
However: If isolated and industrially applicable → May be patentable.
4. Section 3(d) – Most Important
New form of known substance not patentable unless enhanced efficacy.
Purpose: Prevent evergreening.
Supported by:
5. Section 3(e) – Mere Admixture
Mixture without synergistic effect is not patentable.
6. Section 3(i) – Medical Treatment
Methods of surgery or therapy are not patentable.
Reason: Doctors must not face patent liability.
7. Section 3(k) – Computer Programs
Computer programs per se not patentable.
But if combined with hardware solving technical problem → Possibly patentable.
8. Section 3(p) – Traditional Knowledge
Traditional knowledge cannot be patented.
India created TKDL to prevent misuse.
VII. PRODUCT VS PROCESS PATENTS
Product Patent
Protection for product itself.
Post-2005, India allows product patents in pharma.
This change was due to WTO membership under
.
Process Patent
Protection for method of manufacturing.
Before 2005, India allowed only process patents for drugs.
VIII. PATENTABILITY IN SPECIAL SECTORS
1. Pharmaceutical Inventions
Strict scrutiny under Section 3(d).
Case:
2. Biotechnology
Genes in natural state → Not patentable.
Modified genetically engineered product → May be patentable.
3. Chemical Inventions
Must show new compound, not mere mixture.
4. Mechanical Inventions
Must show new structure or mechanism.
IX. COMPULSORY LICENSING – LIMITATION ON PATENTABLE INVENTION
Even if patentable, monopoly is not absolute.
Section 84 allows compulsory license.
Case:
Bayer Corporation v Natco Pharma Ltd (2014)
Cancer drug unaffordable → License granted.
Shows balance between patent rights and public interest.
X. EXAM-ORIENTED PROBLEM QUESTIONS
Problem 1
A isolates plant extract used traditionally by tribal community and files patent.
Answer: Not patentable under Section 3(p).
Problem 2
A invents new vaccine and charges ₹3 lakh per dose.
Remedy: Compulsory license possible.
Problem 3
A files patent after publishing YouTube demonstration.
Patentable?
No. Novelty destroyed.
XI. CRITICAL EVALUATION
Patentability requirements ensure:
- Prevention of trivial patents
- Protection of public health
- Encouragement of genuine innovation
- Compliance with international standards
India’s patent system is considered pro-public interest.
XII. CONCLUSION
Patentable invention must satisfy:
- Novelty
- Inventive Step
- Industrial Application
- Not fall under exclusions
Indian judiciary has played major role in interpreting patentability through cases like:
The law aims to strike a balance between innovation and social justice.
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