What Is Nice Class 4?
Nice Class 4 is the trademark classification for fuels, industrial oils, and illuminants. It covers industrial oils and greases, lubricants, motor fuels and petrol, dust-absorbing and dust-binding compositions, solid fuels, candles and wicks for lighting, and other illuminants. It is one of the more eclectic classes in the system, grouping energy products with candles under the historical umbrella of "materials that fuel or give light."
That mix surprises people: a barrel of motor oil and a scented home candle live in the same class. The logic is functional — both are fuels and illuminants in the classification's original sense. For modern brands, Class 4 has two very different centers of gravity: industrial energy and lubricants on one side, and the booming home-fragrance candle market on the other.
What Class 4 Covers
- Industrial oils, greases, and lubricants
- Motor fuels, petrol, diesel, and biofuels
- Solid fuels such as coal, charcoal, and firewood
- Candles, tea lights, and wicks for lighting
- Dust-absorbing, wetting, and binding compositions
- Illuminants and lamp oils
- Electrical energy as a product (in some cases)
Exclusions: raw industrial chemicals are Class 1; cosmetic, massage, and essential oils for the body are Class 3; and fuel-dispensing or energy services may be Class 35, 37, or 40 rather than Class 4. A scented candle is Class 4, but a massage oil is Class 3 — the difference is whether the product fuels and illuminates or is applied to the body.
Boundary note: Essential oils split by purpose. An essential oil used as a cosmetic or fragrance for the body is Class 3, but a candle scented with that oil is Class 4. Home-fragrance brands that sell both candles and body products need both classes.
The Candle Market Revival
Class 4 was for decades dominated by petroleum and lubricant giants. The explosion of the premium home-fragrance and candle market has brought a wave of new filings from small and direct-to-consumer brands. A modern candle business files in Class 4 for the candles themselves, often alongside Class 3 (if it sells body products or room sprays positioned as cosmetics) and Class 35 (for retail). Because the candle space has crowded quickly, distinctiveness and clearance now matter as much here as in any consumer class.
The naming dynamics in candles mirror the rest of consumer goods. Founders gravitate to descriptive, scent-led names — "Vanilla Glow," "Lavender Dreams" — that struggle to register because they describe the product rather than identify its source. A distinctive, arbitrary, or coined brand name clears far more easily and gives the company something it can actually enforce against the many copycats that flood the category each season. Because candles are visual, shelf-presence products, some brands also invest in distinctive vessel shapes and labels, which can in time support trade-dress protection alongside the core wordmark.
For a brand that spans both candles and body or fragrance products, the cleanest approach is to map each product to its class at the outset: candles and lamp oils in Class 4, cosmetic and body fragrances in Class 3, and the retail or online-store operation in Class 35. Filing this way avoids the common gap where a fast-growing fragrance brand discovers, after launch, that half its range sits outside the single class it originally registered.
Notable Brands in Class 4
- Shell and ExxonMobil — fuel and lubricant brands anchoring the industrial side of the class
- Castrol and Mobil 1 — motor-oil and lubricant marks
- Yankee Candle and Bath & Body Works — leading consumer candle and home-fragrance brands
- Premium and DTC candle makers — a fast-growing segment of new Class 4 filings
Common Filing Mistakes
- Filing body oils in Class 4: cosmetic and massage oils are Class 3.
- Filing raw chemicals in Class 4: industrial chemical inputs are Class 1.
- Missing the retail class: candle and fuel retailers often need Class 35.
- Descriptive names: "Pure Soy Candles" and similar describe the goods and tend to be refused.
Frequently Asked Questions
Why are candles and motor oil in the same class?
Because Nice Class 4 is defined around fuels and illuminants — materials that burn, lubricate, or give light. Candles and motor oil both fall under that functional umbrella in the classification's original logic, so they share Class 4 despite being very different consumer products.
Are scented candles in Class 4 or Class 3?
Scented candles are in Class 4 as illuminants. Class 3 covers cosmetic and fragrance products applied to the body, plus room sprays and some home fragrances positioned as cosmetics. A home-fragrance brand selling candles and body products typically files both Class 4 and Class 3.
Where do essential oils go?
It depends on use. An essential oil used as a cosmetic, perfume, or body product is Class 3. An oil used as a candle scent or illuminant relates to Class 4. The classification follows the product's purpose, so brands selling oils across uses should map each product carefully.
What class are fuels and lubricants in?
Motor fuels, petrol, diesel, biofuels, industrial oils, and lubricants are all in Class 4. The raw chemicals used to make them are Class 1, and fuel-dispensing or energy services may fall in service classes. The finished fuel or lubricant product itself is Class 4.
Search Class 4 Before You File
From industrial lubricants to a crowded candle market, Class 4 spans two very different worlds, and clearance matters in both. Use tmarkmetric to browse registered Class 4 trademarks, see which names are taken, and search the broader registry before you commit to a product line or label.