How Companies Risk Losing Trademarks Due to Mass Adoption
Genericide is one of the most significant and paradoxical concepts in intellectual property. It occurs when a trademark becomes so widely used that it loses its ability to identify a specific commercial source and instead becomes the general name for a product category. At that point, the trademark loses legal protection and enters the public domain. Nigerian trademark law recognises this doctrine, and its application is grounded in statutory provisions and judicial decisions.
Trademarks exist primarily to distinguish the goods or services of one business from those of another. When this distinguishing function disappears, the legal justification for trademark protection also disappears.
What Is Genericide?
Genericide occurs when a trademark that was once distinctive becomes the common name for the goods or services it represents. In legal terms, the trademark ceases to function as an indicator of origin and instead becomes a generic descriptor of a product category.
The statutory foundation for trademark distinctive nature in Nigeria is found in the Trade Marks Act. Section 9(2) provides that the major requirement for a mark to be registrable is distinctiveness and defined ‘distinctive’ as “….adapted, in relation to the goods in respect of which a trademark is registered or proposed to be registered, to distinguish goods with which the proprietor of the trademark is or may be connected in the course of trade from goods in the case of which no such connection subsists, either generally or, where the trademark is registered or proposed to be registered subject to limitations, in relation to use within the extent of the registration.”
Thus, where a mark no longer possesses the capacity to distinguish the goods or services of one undertaking from those of others, it ceases to fulfil the essential function of a trademark. In such circumstances, the mark is no longer eligible for registration and, if already registered, becomes liable to removal from the register pursuant to section 13 of the Act.
The importance of distinctiveness has been affirmed judicially in Nigerian courts. In Ferodo Ltd v Ibeto Industries Ltd, the Supreme Court emphasised that the essence of a trademark lies in its ability to identify the origin of goods. The Court held that trademark protection exists to prevent confusion and preserve the proprietary link between a mark and its owner.² When that link is broken through genericide, the trademark loses its legal basis.
Why Distinctiveness Is the Core Legal Requirement for Trademark Protection in Nigeria
Section 9(1) of the Trade Marks Act establishes that registrable trademarks must either be inherently distinctive or capable of becoming distinctive through use.³
This statutory requirement reflects a broader legal principle recognised in Nigerian courts. In Dyktrade Ltd v Omnia Nigeria Ltd, the Federal High Court held that trademark protection depends on the mark’s ability to distinguish one trader’s goods from those of others.⁴ Where a mark is widely used by the public to describe a type of product rather than to identify a specific company, it no longer serves its purpose as a trademark.
Trademark law protects brand names, but it does not allow companies to claim exclusive rights over words that others need to describe their own products. This protects fair competition while still allowing businesses to protect their genuine brand identity.
Who Has Legal Authority to Declare a Trademark Generic in Nigeria?
A trademark does not become generic automatically. Legal protection continues until a competent authority determines that the mark has lost its distinctiveness.
Under Nigerian law, only legally authorised bodies can declare a trademark generic. These include the Registrar of Trade Marks and the Federal High Court.
The Federal High Court derives its authority from Section 251(1)(f) of the Constitution of the Federal Republic of Nigeria 1999, which grants exclusive jurisdiction over trademark matters.⁶ This ensures that decisions affecting trademark rights are made through formal legal processes,
One of the clearest Nigerian examples of genericide is Smithkline Beecham Plc v Farmex Ltd.
In this case, Smithkline Beecham claimed exclusive rights over the name “Milk of Magnesia.” However, the Federal High Court found that the term had become generic and descriptive of a pharmaceutical substance rather than identifying a single manufacturer.⁷
The court held that the term described the chemical nature and function of the product and was widely used by the public and competitors. As a result, it could no longer serve as a distinctive trademark.
What Are Examples of Genericide in Trademark Law?
Some of the most famous examples of genericide involve brands that became so dominant they defined their industries.
Aspirin:
Aspirin was originally a trademark owned by Bayer. However, widespread public use of the term to describe acetylsalicylic acid pain relief medicine caused the trademark to become generic in several jurisdictions.
The landmark decision in Bayer Co v United Drug Co confirmed that Bayer had lost exclusive rights to the term in the United States. The court held that the word had become the common name for the drug and no longer identified a specific commercial source.⁸
Escalator:
Escalator was originally a trademark owned by Otis Elevator Company. However, Otis itself used the term generically in advertising and product descriptions.
In Haughton Elevator Co v Seeberger, the United States Patent Office ruled that “escalator” had become the common descriptive name for moving staircases and cancelled the trademark.⁹
Thermos:
Thermos was originally a protected trademark owned by Thermos LLC. However, widespread public use caused the name to lose its distinctiveness.
In King-Seeley Thermos Co v Aladdin Industries Inc, the court held that the word “thermos” had become a generic term used by consumers to describe insulated containers rather than a specific brand.¹⁰
How Do Companies Prevent Genericide and Protect Their Trademarks?
Companies should actively take legal and commercial steps to prevent genericide because trademark rights depend on maintaining distinctiveness.
One of the most important strategies is educating the public on proper trademark usage. Companies encourage consumers to use trademarks as brand identifiers rather than product names. For example, Googke promote phrases such as “Google search” instead of using the “google” as a generic verb.
Companies also enforce trademark rights through litigation. Courts have consistently recognised enforcement as evidence that the trademark owner is protecting distinctiveness.
Trademark owners also use proper branding techniques, including capitalisation, trademark symbols, and consistent brand presentation. These practices reinforce the mark’s status as a brand rather than a generic term.
Failure to take these steps can weaken trademark protection and increase the risk of genericide.
Conclusion
Genericide represents the loss of trademark protection when a mark becomes the common name for a product category. The law recognises this doctrine through statutory provisions and judicial decisions.
The Trade Marks Act makes it clear that a trademark must be distinctive. Its main purpose is to help consumers know which company a product comes from. The courts have consistently held that once a mark can no longer do this, it cannot continue to enjoy trademark protection.
Trademark law protects brand names, but it does not protect words that have become part of everyday language. Once a trademark becomes a generic term, it belongs to the public, and the original owner loses exclusive rights to it.
References
Trade Marks Act, Cap T13 Laws of the Federation of Nigeria 2004, s 9(2).
https://lawsofnigeria.placng.org/laws/T13.pdfFerodo Ltd v Ibeto Industries Ltd (2004) 5 NWLR (Pt 866) 317 (SC).
https://lawcarenigeria.com/ferodo-ltd-v-ibeto-industries-ltd/Trade Marks Act, Cap T13 Laws of the Federation of Nigeria 2004, s 9(1).
Dyktrade Ltd v Omnia Nigeria Ltd (2000) FHC/L/CS/42/99.
Trade Marks Act, Cap T13 Laws of the Federation of Nigeria 2004, s 31.
Constitution of the Federal Republic of Nigeria 1999, s 251(1)(f).
Smithkline Beecham Plc v Farmex Ltd (2002) 7 NWLR (Pt 765) 132.
Bayer Co v United Drug Co 272 F 505 (SDNY 1921).
https://law.justia.com/cases/federal/district-courts/F/272/505/Haughton Elevator Co v Seeberger (1950) 85 USPQ 80.
King-Seeley Thermos Co v Aladdin Industries Inc 321 F2d 577 (2d Cir 1963).
https://law.justia.com/cases/federal/appellate-courts/F2/321/577/
