When Registration Meets Prior Use: The KENT Trademark Dispute

What Actually Happened: The Cross-Suit Structure

The KENT dispute is not a straightforward case of a famous brand pursuing an imitator. It is a cross-suit between two long-established companies that happen to share the same trademark in different product categories, and where both claim prior rights in relation to fans specifically.

The conflict intensified in 2022 when Kent RO alleged that Kent Cables had begun expanding its business from electrical goods into electrical appliances and kitchen appliances using the KENT mark. Kent RO filed a suit seeking to restrain Kent Cables from this expansion. Kent Cables responded with a counter-suit seeking to restrain Kent RO from launching fans under the same mark. The courts’ interim orders have restrained Kent RO, not Kent Cables, from selling fans, on the basis that Kent Cables made out a stronger case of prior use for that specific product.

In the Court’s words: ‘ordinarily there can be only one proprietor of a mark for a product, and in the context of fans, the respondents had made out that case at least prima facie.’ This framing captures the principle precisely. The question was not who owned KENT generally. It was who owned KENT for fans.

The Key Timeline

The Court’s Reasoning

1. Prior use in the specific product category is the operative question

The fundamental question was not who had greater overall reputation in the KENT mark, but who was the prior user of KENT for fans specifically. Kent RO had built substantial goodwill in KENT for water purifiers and home appliances over decades. But it had not sold fans under KENT. Kent Cables had been selling fans under KENT since at least 2009, with substantial sales volumes over more than fifteen years, supported by documentary evidence. At the interim stage, that made Kent Cables the prior user for the specific product in dispute.

The Division Bench was direct on the consequences: ‘While we are mindful of the fact that not allowing the appellants to launch their fans with the mark in which they have otherwise acquired substantial goodwill for other products, may cause prejudice to them, it is all of their own doing.

2. Fans are not automatically allied goods to water purifiers

Kent RO argued that fans and water purifiers fall within the same Nice Classification class and are therefore allied or cognate goods, such that its registrations for water purifiers and home appliances should extend protection to fans. The Court rejected this. Classification under the Nice system is for administrative purposes only and does not determine the similarity of goods. The question of whether goods are similar or allied requires independent substantive analysis. The Court found that fans are not so closely allied to water purifiers that registration for one automatically extends to the other.

The Nice Classification point

This is one of the judgment’s most useful clarifications for practitioners. Many brand owners incorrectly assume that a trademark registration covering goods in a specific class protects them against all other goods in that class. The law does not work that way. Class membership is an administrative grouping for registration purposes. Whether two goods are similar enough for one registration to extend protection against the other requires substantive analysis of the nature of the goods, trade channels, consumer base, and functional overlap. Same class does not mean same protection.

3. Fans are a natural progression from electrical cables and wires

The Court accepted that Kent Cables’ expansion into fans was a natural progression from its existing business in electrical wires, cables, and switches. ‘Appliances like fans can be said to be a natural progression of business for the respondents from their original business of electric wires and cables, switches, etc.’ The adoption of the KENT mark for fans in 2009, when Kent RO was not selling fans and was only disputably in the business of other home appliances, could not be characterised as an attempt to take unfair advantage of Kent RO’s goodwill.

4. Acquiescence: eleven years of inaction defeats interim relief

The most practically significant aspect of the Court’s reasoning may be the acquiescence finding. Kent RO knew about Kent Cables’ use of KENT for fans. It opposed the trademark application in 2007. It issued a cease-and-desist notice in 2011. It then took no further action for eleven years, until 2022. During those eleven years, Kent Cables built a substantial fan business under KENT, with large sales volumes and significant market presence. The Court treated this extended inaction as implicit permission and a material factor weighing against Kent RO’s claim for injunctive relief.

The acquiescence principle in practice

Under Section 33 of the Trade Marks Act, 1999, a registered proprietor who has acquiesced in the use of a later trademark for a continuous period of five years with knowledge of that use may lose the right to seek an injunction. The Kent RO facts present a particularly clear case: knowledge in 2007, cease-and-desist in 2011, no lawsuit until 2022. Eleven years is well beyond the statutory threshold. The lesson is direct: if you know of competing use of your mark in a specific product category, act promptly. Delay does not merely weaken your claim. It can extinguish it.

Three Principles This Judgment Reiterates

1. Prior adoption and continuous use can outweigh later registrations

A trademark registration is strong evidence of rights, but it is not conclusive against a prior user. Where a party has adopted a mark earlier and used it continuously and extensively in a specific product category, that prior use can prevail over a later registration at the interim stage and may prevail at trial. The registered proprietor’s strength in other product categories does not automatically extend to the disputed product.

2. Goods in the same class are not automatically similar or allied

Classification under the Nice system exists for administrative purposes only. It does not determine whether goods are similar for the purposes of trademark infringement or passing off. Where goods share a class, the analysis of similarity must address the nature of the goods, their trade channels, their consumer base, and whether confusion is likely. Class membership alone is not the answer.

3. Delay and acquiescence can defeat injunctive relief

A trademark owner who knows of competing use in a specific product category and fails to take timely legal action risks losing the right to injunctive relief at the interim stage. Knowledge, coupled with extended inaction, is treated as implicit acquiescence. The eleven-year gap between Kent RO’s cease-and-desist notice and its lawsuit, during which Kent Cables built a substantial fan business, was a central factor in the outcome.

Conclusion

Kent RO Systems Ltd. v. Kent Cables Pvt. Ltd. is a useful illustration of how trademark rights work in practice when two parties share a mark in different product categories. The law does not automatically award all product categories to the party with greater overall reputation. It asks, product by product, who used the mark first in that specific category, whether that use was continuous and substantial, and whether the registered proprietor acted promptly to protect its position when competing use came to its attention.

For Kent RO, the answer to all three questions worked against it for fans. For brand owners generally, the case is a practical reminder that trademark strategy is continuous: register in the categories that matter, monitor what others are doing in your mark, and act without delay when competing use is discovered.

Governing Law

Trade Marks Act, 1999: Sections 33 (acquiescence), 34 (prior use), 47  |  Nice Classification (administrative purpose)  |  Code of Civil Procedure, 1908: Order XXXIX Rules 1 and 2