It is routine for teams to ask who should be named as inventor when research, design, software, and testing are spread across people and organisations. Anxiety usually peaks near filing, when declarations are due and emails start circulating about whose name belongs on the form. The instinct to “include everyone to be safe” is common, yet Indian law takes a narrower, contribution-based view. Getting inventorship right matters for credit, for paperwork, and, in edge cases, for ownership and disputes.
The legal position in India, in brief
Indian law recognises joint inventorship. An application can be made “alone or jointly” by the true and first inventor, by an assignee, or by a legal representative. “True and first inventor” is defined negatively, excluding the first importer into India and a person to whom the invention was first communicated from outside India.
Naming inventors is a formal step, handled through the Declaration as to Inventorship (Form 5) and the specification. Separately, Section 28 allows a person to be mentioned as inventor in the patent and on the Register if the Controller is satisfied that the application is a direct consequence of that person’s inventorship. Note the proviso, which clarifies that mere mention does not confer or take away rights under the patent.
What counts as “intellectual contribution” to be a co-inventor?
Courts and Patent Office decisions point to intellectual contribution to the conception of at least one claimed feature as the touchstone.
Financier or administrator, not an inventor: In V. B. Mohammed Ibrahim v. Alfred Schafranek (Mysore High Court, 1960), the Court held that a financing partner with no technical contribution is not an inventor. Only a natural person who contributes intellectually can be one.
Firm is not the inventor, people are: In Shining Industries v. Shri Krishna Industries (Allahabad High Court, 1975), the Court recognised that the firm could own as assignee but inventorship lies with individuals who make the technical contribution.
Hired hands and routine work: In National Institute of Virology v. Vandana S. Bhide (Controller’s decision, Application 581/BOM/1999), the Patent Office emphasised that routine execution without creative input does not make one an inventor; some intellectual contribution to the research leading to the claims is required.
Practical reading: Name a person as inventor if, and only if, that person contributed intellectually to the conception reflected in at least one claim. Data generation, prototyping, or coding that simply follows instructions, without shaping the claimed solution, is generally not inventorship.
A working checklist to assess contributions, team by team
Use this before finalising Form 5 and the draft claims.
Map contribution to claims: For each proposed inventor, identify the specific claim elements they conceived, improved, or combined. If no element maps, do not list.
Distinguish idea from implementation: If someone merely verified parameters or translated logic into code without shaping the inventive concept, they are typically not an inventor.
Watch the “manager trap”: Supervisory approval or project management does not equal inventorship unless it materially changed the solution that became a claim.
Be evidence-ready: Keep dated notes, tracked drafts, and email summaries linking people to claim ideas. These support later corrections under Section 28 if needed.
Recording and correcting inventorship, step by step
File Form 5 with the complete specification or within the prescribed period. Ensure names, nationalities, and addresses are accurate, and keep the signed declaration on file.
If someone was left out or wrongly included, use Section 28.
A request can be made by the applicant, jointly with the person to be added.
A claim can be made by a person who seeks to be added, with a hearing of interested parties.
A person wrongly mentioned may seek a certificate for deletion.
All such actions must be taken before grant. Post-grant, courts can address inventorship disputes.Use the prescribed forms and rules for Section 28 requests and claims, including Form 8 and Rules 66 to 70.
Practice pointer: The Patent Office treats the application’s named inventors as correct unless challenged with material showing contribution or lack thereof. Build your file correspondingly.
Do co-inventors automatically become co-owners?
Not necessarily. Inventorship and ownership are distinct. Ownership usually rests with the assignee named in the application, for example the employer or a collaborating entity, backed by proof of right under Section 7(2). If an assignee files, proof of right must be furnished with the application or within the prescribed time.
When a patent is granted to two or more persons, Section 50 gives them an equal undivided share unless there is a different agreement. Each co-owner may work the patent without accounting to the others, but may not grant licences or assign a share without the other co-owners’ consent. If co-owners disagree on licensing or sale, Section 51 empowers the Controller to give directions after hearing the parties.
Assignments and licences must be in writing and duly executed and are best registered so that title and interests are recognised and admissible.
When contributions are unequal, does order matter?
Order of names carries no statutory weight. Under Section 28’s proviso, mention as inventor neither confers nor derogates from rights. Internally, organisations sometimes list primary contributors first for recognition, but rights flow from assignment and, where relevant, from Section 50’s co-ownership default, not from the order of names.
Common edge cases, answered
1) Should a supervisor or head of department be named as inventor by default.
No. Unless the person made a real intellectual contribution to the claimed solution, they are not an inventor. Routine supervision, funding, or signing off experiments is insufficient, as reflected in the Vandana S. Bhide decision and the reasoning in Ibrahim and Shining Industries.2) Can a company or an AI system be an inventor.
No. Only natural persons qualify as inventors. Companies show up as assignees/applicants by producing proof of right. Indian practice has also rejected naming AI as inventor because the Act ties inventorship and the right to apply to a “person”, understood as natural persons for inventorship.3) What if one contributor refuses to sign.
File the application in the name of the assignee with proof of right under Section 7(2), identify all inventors in Form 5 based on your records, and proceed. If a dispute persists, Section 28 provides a route to have the Controller hear the matter before grant.4) Does under- or over-naming inventors affect validity.
Wrongful obtainment or fraud-based situations can have serious consequences, including reassignment to the true inventor under Section 52, and inventorship errors can complicate oppositions and enforcement. It is better to fix inventorship before grant using Section 28 than to litigate after.A short, India-focused decision framework for teams
Start with claims. Draft independent and dependent claims first, then list only those who contributed to the claimed features.
Mark evidence. Keep a contribution log mapping individuals to claim elements, with dates and short descriptions.
Decide ownership separately. Execute assignments early and file proof of right.
Use Section 28 tactically. If new facts emerge during drafting or prosecution, correct inventorship before grant using the prescribed forms.
When in doubt, check the claims again. If the person’s contribution is not visible in a claim today or in a planned fall-back, they are unlikely to be an inventor.
A brief comparative note
Many systems, including the United States, also tie joint inventorship to contribution to at least one claim. The Indian approach is aligned in spirit, though procedures, forms, and remedies are India-specific. Treat foreign commentary as background, and follow the Indian statute and decisions for your filing.
Bottom line
Multiple inventors are common and perfectly accommodated under Indian law. The decisive question is who contributed intellectually to the conception of the claimed invention. Use claims as your compass, document contributions, separate inventorship from ownership, and rely on the Section 28 route to correct errors before grant. Taking this disciplined approach preserves credit, avoids disputes, and keeps your patent legally resilient.
