Avoiding Conflict: How the Registry Evaluates Similarity Under Section 11(1)

While Section 9 addresses whether a mark is inherently registrable, Section 11(1) of the Trade Marks Act, 1999 addresses whether it conflicts with an earlier trade mark. This is the relative grounds refusal — and it is one of the most common objections raised during examination. Understanding how the Registry and the Indian courts assess similarity is critical for both applicants and opponents.

The Legal Test

Section 11(1) provides that a trade mark shall not be registered if, because of its identity with or similarity to an earlier trade mark, and the identity or similarity of the goods or services covered, there exists a likelihood of confusion on the part of the public, which includes the likelihood of association with the earlier trade mark.

This requires a two-part assessment: similarity of the marks and similarity or identity of the goods or services. Both elements must be present for the refusal to apply.

The Three Dimensions of Similarity

The Registry and the courts assess similarity across three dimensions:

Visual Similarity

This compares the overall appearance of the marks: the letters, design elements, colours, stylisation, and spatial arrangement. The assessment considers how the marks would appear to a consumer encountering them in the marketplace, not under careful side-by-side scrutiny.

Phonetic Similarity

This compares how the marks sound when spoken. In India, phonetic similarity is often the decisive factor, particularly in a market where goods are frequently requested orally — at pharmacies, retail counters, and in trade communications. The Supreme Court’s landmark decision in Amritdhara Pharmacy v. Satyadeo Gupta established that the overall structural and phonetic similarity between “Amritdhara” and “Lakshmandhara” was sufficient to create a likelihood of confusion, even where the visual presentations differed.

Conceptual Similarity

This compares the meaning or idea conveyed by the marks. Marks that evoke the same concept may be found similar even if they look and sound different.

The Anti-Dissection Rule

Indian law firmly applies the anti-dissection rule: marks must be compared as a whole, not broken into component parts for individual comparison. This principle derives from Section 17 of the Act and has been consistently affirmed by the courts. In Ultratech Cement Ltd. v. Dalmia Cement Bharat Ltd., the Bombay High Court confirmed that trade marks must be considered as indivisible wholes, and that the commercial impression is created by the mark as a whole, not by isolated elements.

This means that an Examiner or court should not isolate a single word from a composite mark and compare it with a single word from another composite mark. The overall impression — including all visual, phonetic, and conceptual elements — is what matters.

Imperfect Recollection

A fundamental principle in Indian trade mark law is that consumers do not compare marks side by side. The test is based on imperfect recollection: how a consumer with an ordinary degree of caution would recall the mark from memory and whether that recollection would lead to confusion with another mark. This standard recognises that consumers carry an imperfect mental image of marks they have encountered and may confuse marks that share key features, even if a careful comparison would reveal differences.

Honest Concurrent Use: The Section 12 Exception

Section 12 provides an exception to Section 11 where two similar marks have been honestly and concurrently used over a substantial period. If both proprietors can demonstrate good-faith adoption and prolonged parallel use without actual confusion, the Registrar may permit both marks to coexist on the register. Factors considered include the duration and extent of concurrent use, whether confusion has actually occurred, and the relative inconvenience of refusing registration.

Letters of Consent

Under Section 11(4), if the proprietor of the earlier mark consents to the registration of the later mark, the Registrar may accept the application. A consent letter from the cited mark owner is a recognised and practical tool for overcoming a Section 11(1) objection, though the Registrar retains discretion to refuse if confusion remains likely despite consent.

Section 11(2): Protection Beyond Similar Goods

While Section 11(1) requires identity or similarity of goods, Section 11(2) extends protection to well-known trade marks even where the goods or services are dissimilar. If the applicant’s mark is identical or similar to an earlier well-known trade mark, registration may be refused if use of the later mark would take unfair advantage of, or be detrimental to, the distinctive character or repute of the well-known mark. This anti-dilution provision provides broader protection for famous brands and is an important consideration when filing marks that share elements with well-known names, even in unrelated product categories.

The Goods Similarity Assessment

The likelihood of confusion under Section 11(1) requires not only mark similarity but also identity or similarity of goods or services. The Registry assesses goods similarity by considering the nature of the goods, their intended purpose, their trade channels, whether they are in competition, and whether consumers would expect them to come from the same source. The Supreme Court in the Nandhini case confirmed that even phonetically similar marks may coexist if the goods are sufficiently different — in that case, “NANDHINI” for restaurants and “NANDINI” for milk products were found to operate in distinct commercial spaces.

Strategic Recommendations

• Conduct phonetic searches: A visual search alone is insufficient. Search for marks that sound similar to your proposed mark, as phonetic similarity can be decisive.
• Evaluate the mark as a whole: When assessing potential conflicts, compare the overall impression of the marks, not isolated elements.
• Consider the imperfect recollection standard: Ask whether a consumer relying on memory would confuse the marks, not whether a careful side-by-side comparison would reveal differences.
• Seek consent where possible: If a Section 11(1) objection is based on a mark owned by a party with whom you have no competitive conflict, explore a consent letter.
• Distinguish goods and services: If the marks are similar but the goods are genuinely different, argue that the absence of goods similarity means no likelihood of confusion.

Key Takeaway

Section 11(1) protects consumers from confusion by refusing marks that are too similar to existing registrations for the same or similar goods. The Indian approach places particular emphasis on phonetic similarity and the imperfect recollection of the average consumer. The anti-dissection rule requires comparison of marks as a whole. For applicants, the most effective strategy is thorough pre-filing searching across all three dimensions of similarity — visual, phonetic, and conceptual — and preparing arguments that address the overall commercial impression.