CSEG3060 · Research Methodology in Computer Science
Extent of protection, rights conferred and their limitations — then assignment, succession and the formalities that make a transfer stick
The claims define the monopoly. Everything else in the specification is context for interpreting them.
Unit VI · Lecture 1 of 4 · 60 minutes · CO3 · B.Tech (CSE) Semester V
Dr. Mohsin Furkh Dar · School of Computer Science, UPES
→ / Space next · ← back · O overview · N speaker notes · F full screen
Learning outcomes · CO3
Explain how claims determine the extent of protection, and the four claim forms used in computing
State the rights conferred by Section 48, and identify infringing acts in a software context
Apply the six statutory limitations — exhaustion, research use, Bolar, prior use, government use, compulsory licensing
Distinguish assignment from succession, and both from licensing
List the formalities that make a transfer enforceable, and the consequences of omitting them
Evaluate employee-invention and university–industry transfers using decided cases
Key concepts
| Term | Definition |
|---|---|
| Patent | A time-limited, territorial statutory monopoly for a novel, non-obvious, industrially applicable invention |
| Scope of patent rights | The bundle of exclusive privileges flowing from the grant, bounded by the claims and by statutory limitations |
| Claims | The legally operative part of the specification defining the metes and bounds of the invention |
| Infringement | Any act falling within the scope of the claims without the patentee’s authorisation |
| Exhaustion of rights | The patentee’s rights in a particular article are extinguished on its lawful first sale |
| Compulsory licence | A non-voluntary licence granted by the State on prescribed grounds, permitting third parties to work the patent |
| Prior user right | The defence available to someone already using the invention in good faith before the priority date |
| Bolar exception | An exemption permitting use of a patented invention to obtain regulatory approval before expiry |
Extent of protection · 1 of 3
Directed to a hardware configuration — e.g. a multiprocessor architecture with a particular cache-coherence protocol.
Directed to a sequence of steps — e.g. a method of compressing video using a specific predictive algorithm.
A non-transitory storage medium carrying instructions to perform the method. Historically important in the United States.
A hybrid form drafted for the European Patent Office, framed to establish technical character.
The broader the claim, the wider the scope of protection — and the greater the risk of rejection over prior art, or later invalidation for lack of novelty or inventive step. Claim scope is a negotiation with the examiner, not a wish.
Extent of protection · 2 of 3
Expressly excluded from patentability:
The Patent Office Manual recognises that a program combined with novel hardware or a technical effect is not “per se”.
Determined by the two-step Alice/Mayo framework. An abstract idea implemented on a generic computer is not patent-eligible.
This is the holding of Alice Corp. v. CLS Bank International (2014), which invalidated business-method patents claiming no inventive concept beyond the abstract idea itself.
Programs for computers and mathematical methods are excluded “as such” — but technical character restores patentability.
See T 258/03 (auction method) and the G1/19 line on computer-implemented simulations.
Extent of protection · 3 of 3
Patents are strictly territorial. A US patent has no legal force in India; an Indian patent is unenforceable in Germany.
Multi-jurisdictional protection requires filing in each country of interest, ordinarily within twelve months of the priority date under the Paris Convention.
This is why freedom-to-operate analysis is jurisdiction-by-jurisdiction: a developer shipping software worldwide must examine the patent register in every relevant territory.
Twenty years from the date of filing in most jurisdictions, subject to renewal and annuity fees. India follows this under Section 53.
On expiry the subject matter enters the public domain, free for all to use.
There is no concept of an evergreen patent beyond the term — although supplementary protection certificates exist for pharmaceuticals in Europe.
Rights · 1 of 2
A patent does not grant the affirmative right to make, use or sell the invention. It grants the right to prevent others from doing so.
Illustrated starkly in computing: a patent on a novel data-compression algorithm does not license the inventor to encode video. It empowers the inventor to stop third parties from encoding video using that algorithm without consent.
Where the invention is a product: to prevent third parties from making, using, offering for sale, selling or importing that product for purposes of commercial exploitation.
Where the invention is a process: to prevent third parties from using that process, and from using, offering for sale, selling or importing the product obtained directly by that process.
This language is mirrored in Article 28 of the TRIPS Agreement, 1994, and is the universal standard.
A method claim reaches not only the running of the process but the product obtained directly by it. For a patented encoding method, that can extend to the encoded file itself — which is how a method claim acquires commercial teeth against downstream distributors.
Rights · 2 of 2
| Act | Illustration in computer science |
|---|---|
| Making | Manufacturing a chip embodying a patented architecture |
| Using | Running a patented machine-learning inference method on a server |
| Offering for sale | Advertising a SaaS product that implements a patented process |
| Selling | Distributing copies of software that include a patented data structure |
| Importing | Bringing in hardware manufactured abroad that infringes an apparatus claim |
Under Section 114A and analogous provisions elsewhere, contributory liability attaches to supplying a means for working the invention where the supplier knows the means are intended for infringing use.
Civil — injunction, damages or account of profits, delivery-up of infringing goods.
Administrative — customs seizure of infringing goods under the Customs Act, 1962.
Criminal — generally not available: patent infringement is a civil wrong. Criminal sanctions for software piracy arise under copyright, not patent.
Limitations · 1 of 2
Once a patented product is lawfully sold by or with the patentee’s consent, rights in that article are exhausted. The buyer may use, resell or repair it freely.
A customer who buys a patented microprocessor may install it in any device without further licence.
Section 47(3) exempts acts done for experimental purposes relating to the subject matter.
Narrower in India than Europe. In the US, Madey v. Duke University (2002) held that even non-profit university research with commercial implications falls outside the exception.
Section 47(1)(d) exempts acts reasonably related to obtaining regulatory approval before expiry — preventing de facto term extension through regulatory lag.
From Roche Products v. Bolar Pharmaceutical (1984). Formulated for drugs, but the Indian statutory language is not so limited.
Section 47(2) protects a person in bona fide use of the invention in India before the priority date, who continues to use it.
Vital to software, where trade-secret developers frequently claim they were already practising the algorithm privately.
Section 47(1)(a)–(c) and Chapter XVI permit the Central Government to use a patented invention for its own purposes on specified grounds — a form of compulsory licence.
Section 84 allows any interested party to apply three years after sealing, on grounds of non-working, unreasonable refusal to licence, or public need.
India’s first was granted in 2012 — Natco v. Bayer (Nexavar). Doctrinally relevant to standard-essential patents in ICT.
Limitations · 2 of 2
Prevents an infringer escaping liability by making insubstantial modifications to a patented invention. Developed in the United States, applied cautiously in India.
Substantially narrowed by Festo Corp. v. Shoketsu Kinzoku Kogyo (2002), which imposed prosecution-history estoppel on its application.
In computing this arises when a competitor implements the algorithm in a different language or on a different hardware platform.
A patentee who withholds material prior art from the examiner, or who extends the patent beyond its legitimate boundaries — for example by tying sales of patented software to other products — may be barred from enforcement altogether.
Under Article 102 TFEU and Section 4 of the Indian Competition Act, 2002, a dominant holder’s refusal to license standard-essential patents may constitute an abuse.
Huawei v. ZTE (2015) and Microsoft v. Motorola (2013) mark the intersection of FRAND commitments with patent scope.
Case studies
Facts: a process for curing rubber using a computer to calculate cure times from the Arrhenius equation.
Held: reciting a mathematical formula does not make a claim unpatentable, so long as the formula is applied in a practical manner producing a transformation.
Significance: established that software-implemented processes with a tangible technical effect are eligible. Still the foundational citation worldwide.
Held: business methods implemented on a computer are patentable provided they produce a “useful, concrete and tangible result”.
Significance: opened the floodgates to US business-method patents in the late 1990s — and was subsequently limited by Bilski (2010) and Alice (2014).
Facts: a computer-implemented method for mitigating settlement risk through a third-party intermediary.
Held: invalid under the two-step test — directed to an abstract idea (intermediated settlement) with no inventive concept.
Significance: narrowed software eligibility sharply; used to invalidate hundreds of subsequent claims.
A pharmaceutical case, but instructive: Section 3(d) denied a patent for evergreening — minor variations of a known substance without enhanced efficacy.
Commentators apply the reasoning by analogy to argue that incremental software updates contributing no technical effect should likewise fail the inventive-step test.
Part 2 begins
The economic rationale is simple: an inventor’s commercial capacity may differ from their inventive capacity. A university laboratory may have no manufacturing, marketing or distribution infrastructure. A multinational may lack the research base to invent the algorithm but can scale and monetise it.
Transfer is the mechanism that bridges invention and commercialisation.
Voluntary transfer of ownership by act of the parties.
Transfer of ownership by operation of law — death, insolvency, restructuring.
Grant of permission to use, ownership retained. Lecture 2 of this unit.
Why this matters acutely in computing: software patents often originate in academic research; open-source ecosystems coexist with proprietary patent strategies; and collaborative university–industry R&D requires structured transfer mechanisms from the outset.
Transfer · 1 of 4
Complete assignment — the entire right, title and interest passes. The assignor retains no residual rights.
Partial assignment — only an undivided share (say 50 percent), or rights limited to a specific territory, field of use or period.
Partial assignments are common in computing, where joint inventions leave multiple inventors holding undivided shares.
Common in employment agreements (inventions vest in the employer), sponsored research agreements, and pre-grant assignment to a startup founded by the inventor.
Such assignments are conditional: they become absolute only on grant. Until then the assignee holds a contingent right.
Transfer · 2 of 4
| Condition | Requirement |
|---|---|
| Written instrument | The assignment must be in writing. Oral or implied assignments are not recognised |
| Identification of parties | Clear identification of assignor and assignee, with full legal names and addresses |
| Subject-matter specificity | The patent or application clearly identified — by application number, title or filing date |
| Consideration | Monetary or otherwise, and specified — unless the assignment is by way of gift |
| Territorial scope | Whether the assignment covers India alone or multiple jurisdictions |
| Effective date | The date from which the assignment takes effect |
| Signatures | Duly signed by the assignor and accepted by the assignee |
Transfer · 3 of 4
Transmission to legal heirs under personal law or by will.
Rights vest in the official assignee or trustee in bankruptcy.
Mergers, acquisitions, demergers, spin-offs and transfers of undertakings.
By the State, under specific statutory provisions.
Rights devolve on the legal representatives under the applicable personal law — the Hindu Succession Act, the Indian Succession Act, Muslim Personal Law.
Patents transfer automatically on merger, acquisition, demerger or transfer of undertaking. No separate deed of assignment is required — but the transfer must still be notified to the patent office for recordal in the Register.
Transfer · 4 of 4
Section 68 requires every instrument dealing with property in a patent to be in writing and signed.
Assignments are treated as conveyances under the Indian Stamp Act, 1899 or state legislation. An inadequately stamped instrument may be inadmissible in evidence.
Lodged with the CGPDTM, typically within six months of execution, extendable by a further six.
Recorded in the Register — a public document and prima facie evidence of the particulars entered.
Published, giving constructive notice to the world.
Original assignment deed or certified copy · Form 16 — application for direction for substitution of applicant or patentee · power of attorney, if filed by an agent · proof of payment of fees · affidavit verifying the facts, in cases of succession.
But: as between the parties themselves, the contract remains valid as a private obligation.
Consolidation
| Parameter | Assignment | Succession | Licensing |
|---|---|---|---|
| Nature | Voluntary transfer by act of parties | Transfer by operation of law | Grant of permission to use |
| Ownership | Transferred, whole or part | Transferred automatically | Retained by licensor |
| Instrument | Deed of assignment | Death certificate, court order | Licence agreement |
| Recordal required | Yes | Yes | Yes, for an exclusive licensee to sue |
| Consideration | Lump sum or staggered | Nil — by law | Royalty or one-time fee |
| Duration | Remaining term of patent | Remaining term of patent | As specified in the agreement |
| Reversibility | Irrevocable unless rescinded | Irrevocable | Revocable per terms |
Applied context
A software patent may cover several components. An assignment may be of a specific module only — which makes subject-matter specificity harder to draft.
Assigning patents covering open-source code may conflict with the licence — for example the GPL’s patent retaliation clauses.
Collaborative coding environments generate frequent disputes about who the true inventor is, which complicates every downstream assignment.
In 5G, Wi-Fi and video codecs, transfer must respect FRAND commitments — they travel with the patent.
Under Section 6 and the surrounding jurisprudence: an invention made in the course of employment generally vests in the employer; an invention outside the scope of employment but using employer resources leaves rights with the employee, who may owe compensation.
Software engineers routinely sign proprietary information and inventions assignment agreements (PIIAAs) on joining, prospectively assigning future inventions.
Three routes: exclusive licensing; assignment of applications in exchange for equity or milestone payments; and spin-off formation with rights assigned to the new company.
Shaped in India by CSIR, IIT and related policies; globally by the Bayh-Dole Act (1980), which let US universities retain title to federally funded inventions and catalysed the TTO model.
Case studies
Issue: validity of an assignment executed by an employee shortly after the application was filed.
Held: the assignment was upheld. A valid assignment of an invention may be made even before the application is filed, provided it clearly identifies the subject matter and the intent to assign future rights.
Relevance: confirms the enforceability of pre-grant assignments in university–industry collaboration.
Issue: whether an automatic assignment clause in a university research agreement beats a later assignment the researcher signed with a third party.
Held: an automatic present-assignment clause does not automatically vest title in the university. The researcher must execute a subsequent assignment; until then, the researcher holds legal title.
Relevance: reshaped university technology transfer practice worldwide.
Issue: scope of assignment and interpretation of the deed.
Held: an assignment must be construed strictly according to the language used. Rights not expressly assigned remain with the assignor.
Relevance: the foundational Indian authority on reading assignment deeds.
Consolidation
s.10(5) claims define scope · s.48 rights conferred · s.53 term · s.47(1)–(3) exceptions · s.84 compulsory licensing · s.114A indirect infringement · s.68 assignment · s.6 employee inventions
Your group project produces code written partly on university machines and partly at home, by four people. Who owns any patentable invention in it, and what single document would have settled the question in advance?
Next — Lecture 2: Licensing and Technology Transfer: exclusive, non-exclusive and sole licences, the clauses of a licence agreement, royalty structures, and the mechanisms by which technology reaches the market.