NICE Class 4 covers industrial oils and greases, wax, lubricants, dust-absorbing and binding compositions, fuels and illuminants, and candles and wicks for lighting. It is a goods class for energy, lubrication and lighting products. In Nepal you register a Class 4 trademark with the Department of Industry, and protection covers only the class you file in.
Key Takeaways
- Class 4 is the fuels, oils and lubricants class — industrial oils and greases, lubricants, fuels, illuminants, and candles.
- It includes motor fuels, biofuels, electrical energy, industrial wax, and non-chemical fuel additives.
- It excludes special industrial oils and grafting wax (Class 1), depilatory and cosmetic wax (Class 3), and wicks for lamps and lighters (Classes 11, 34).
- Lubricant, LPG, candle and biofuel brands in Nepal file in Class 4.
- Register with the Department of Industry under the Patent, Design and Trademark Act 1965.
- Search Class 4 before filing to avoid conflicts with established fuel and lubricant marks.
What does Trademark Class 4 cover?
Class 4 covers industrial oils and greases, wax; lubricants; dust-absorbing, wetting and binding compositions; fuels and illuminants; and candles and wicks for lighting. The unifying idea is materials that power, lubricate or light — from motor oil and machine grease to petrol, biofuel and even electrical energy. It also covers industrial wax and non-chemical additives that improve fuels.
Full list of goods in Class 4
Below is the complete alphabetical list of Class 4 goods indications from the WIPO NICE Classification (13-2026 edition) — 108 entries in total. Use it to find the exact wording for your specification when you file in Nepal:
- Additives, non-chemical, to motor fuel
- Alcohol [fuel]
- Anthracite
- Beeswax for use in the manufacture of cosmetics
- Beeswax*
- Belting wax
- Benzene fuel
- Benzine
- Biomass fuel
- Bone oil for industrial purposes
- Candles* / tapers
- Carburants / motor fuel
- Carnauba wax
- Castor oil for industrial purposes
- Ceresine
- Charcoal [fuel]
- Coal
- Coal briquettes
- Coal dust [fuel]
- Coal naphtha
- Coal tar oil
- Coke
- Combustible briquettes
- Cutting fluids
- Dielectric oil for use in metalworking
- Diesel oil / gas oil
- Dust absorbing compositions
- Dust binding compositions for sweeping
- Dust laying compositions
- Dust removing preparations
- Electrical energy
- Ethanol [fuel]
- Firelighters
- Firewood
- Fish oil for industrial purposes
- Fuel gas
- Fuel oil / combustible oil
- Fuel with an alcohol base
- Fuel*
- Gas for lighting
- Gear oil
- Grease for arms [weapons]
- Grease for belts
- Grease for footwear
- Grease for leather
- Greases for the preservation of leather
- Hookah charcoal
- Hydrogen fuel
- Industrial grease
- Industrial oil
- Industrial wax
- Kerosene
- Lamp wicks
- Lanolin for use in the manufacture of cosmetics
- Lighting fuel
- Lignite
- Ligroin
- Lubricants
- Lubricating graphite
- Lubricating grease
- Lubricating oil
- Mazut
- Methylated spirit
- Mineral fuel
- Moistening oil
- Motor oil
- Naphtha
- Natural gas
- Non-slipping preparations for belts
- Oil-gas
- Oils for lighting
- Oils for paints
- Oils for releasing form work [building]
- Oils for the preservation of leather
- Oils for the preservation of masonry
- Oleine
- Ozokerite / ozocerite
- Paper spills for lighting fires
- Paraffin
- Peat [fuel]
- Peat briquettes [fuel]
- Perfumed candles
- Petrol / gasoline
- Petroleum ether
- Petroleum jelly for industrial purposes
- Petroleum, raw or refined
- Producer gas
- Rape oil for industrial purposes / colza oil for industrial purposes
- Solidified gases [fuel]
- Soy candles
- Soya bean oil preparations for non-stick treatment of cooking utensils
- Stearine
- Sunflower oil for industrial purposes
- Tallow
- Textile oil
- Tinder
- Vaporized fuel mixtures
- Votive candles
- Wax [raw material]
- Wax for lighting
- Wax for skis
- Wicks for candles
- Wood briquettes
- Wood chips for smoking and flavouring foods / wood chips for smoking and flavoring foods
- Wood chips for use as fuel
- Wood shavings for lighting fires
- Wool grease / lanolin
- Xylene fuel
What Class 4 does not include
Several oil-, wax- and candle-related goods sit in other classes. Watch these exclusions:
| Product | Correct class |
|---|---|
| Special industrial oils (tanning oils, wood-preservation oils) | Class 1 |
| Grafting wax and tailors' wax | Class 1 |
| Depilatory (hair-removal) wax | Class 3 |
| Massage candles for cosmetic purposes | Class 3 |
| Massage candles for therapeutic purposes | Class 5 |
| Wicks for oil stoves | Class 11 |
| Wicks for cigarette lighters | Class 34 |
The rule of thumb: a product for power, lubrication or lighting is Class 4, but an oil or wax defined by a cosmetic, medical or specialised industrial use is classified by that use instead.
Who files in Class 4 in Nepal?
In Nepal, Class 4 is filed by lubricant brands and blenders, fuel and LPG distributors building a brand, candle and wax makers, and the country's emerging biofuel and briquette producers turning agricultural waste into fuel. As Nepal expands hydropower and clean energy, branded energy products increasingly seek protection here too. Confirm your class with the NICE Class Finder or the AI NICE Classifier.
How to register a trademark in Class 4
Search the register for earlier fuel and lubricant marks, confirm Class 4 fits, prepare your mark and a precise specification, and file with the Department of Industry. It examines the application, publishes it for the 90-day opposition window, and registers it for a renewable 7-year term. See how to register a trademark in Nepal and how to search first.
Do you need more than one class?
Sometimes. A lubricant business might file in Class 4 for the oils and add a class for related equipment or retail services. Because Nepal files one class per application with fees per class, map your range before filing. See choosing the right class, and the neighbouring Class 3 (Cosmetics & Cleaning) and Class 5 (Pharmaceuticals).
Why precise Class 4 filing matters
Fuels and lubricants are trust products — buyers rely on a name to signal quality and safety — so an accurate Class 4 registration is worth getting right. A specification that names your real goods, such as "engine lubricating oils", "industrial greases" or "biofuel briquettes", protects the products you actually sell and avoids both under-protection and a needless clash with unrelated marks. It also keeps the boundary clear against cosmetic oils and waxes (Class 3) and specialised industrial oils (Class 1), which are easy to misfile. Because Nepal is first-to-file, the date you lodge the application secures your priority in a competitive energy market. A precise, early Class 4 filing is the difference between a protected brand and one a competitor can register around.
It is also worth thinking ahead to how your range may grow. Many fuel and lubricant brands later add equipment, packaging or servicing lines, each of which sits in a different class. Planning the class map at the outset — even if you file the additional classes later — means your brand expands on a coherent foundation rather than a patchwork of gaps.
Class 4 filing checklist
- Confirm your product powers, lubricates or lights — not a cosmetic or medical oil/wax.
- Check the exclusions — Class 1, 3, 11 or 34.
- Search the register for similar fuel and lubricant marks.
- Draft a precise goods specification.
- Consider related classes for equipment or services.
- File with the Department of Industry and track to registration.
A Nepal example
Consider a Nepali lubricant blender that sells branded motor oils and industrial greases. Those products are Class 4, so its main trademark is filed there. If the business also makes branded oil filters or pumps, those are machines and parts in Class 7, not Class 4 — the consumable oil and the equipment are classified separately. And if it runs branded servicing centres, that maintenance work is a service in Class 37. A single lubricant brand can span Class 4 for the oils, Class 7 for related equipment, and Class 37 for servicing — each protected only by its own filing.
Getting Class 4 right: common mistakes
The most common Class 4 error is misfiling an oil or wax defined by another use. A cosmetic massage oil or depilatory wax is Class 3; a therapeutic massage candle is Class 5; a special industrial oil such as a tanning or wood-preservation oil is Class 1. Only oils, greases and waxes for lubrication, fuel or lighting are Class 4.
A second pitfall involves wicks and candles: candles and wicks for lighting are Class 4, but a wick for an oil stove is Class 11 and a wick for a cigarette lighter is Class 34. A third is assuming every energy product is Class 4 — while fuels, biofuels and even electrical energy are, the equipment that burns or generates them is machinery in other classes. Specify the actual goods you sell, and file additional classes where your range crosses into equipment or services.
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Register your Class 4 trademark
Protect your fuel, oil or candle brand. Find your class with the NICE Class Finder, screen with the Conflict Checker, then register your trademark with our team. Talk to an IP expert if your products span fuels, equipment and services.
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