What Is Nice Class 11?
Nice Class 11 is the trademark classification for environmental-control and utility apparatus — the machines that light, heat, cool, cook, and supply water in homes and buildings. It covers lighting fixtures and lamps, heating systems and furnaces, air conditioning and ventilation, cooking appliances like ovens and ranges, refrigerators and freezers, water heaters, plumbing fixtures, and sanitary apparatus. If a device controls light, temperature, or water, it usually lives here.
It is the home of large appliances and HVAC equipment, a category dominated by established manufacturers and increasingly disrupted by smart-home startups. The class boundary that matters most today is between the appliance itself (Class 11) and the connected technology that controls it (Class 9).
What Class 11 Covers
- Lamps, lighting fixtures, and LED lighting apparatus
- Heating systems, furnaces, radiators, and space heaters
- Air conditioning, ventilation, and climate-control equipment
- Cooking apparatus: ovens, ranges, cooktops, and grills
- Refrigerators, freezers, and refrigeration equipment
- Water heaters, water filters, and water-supply apparatus
- Plumbing fixtures, faucets, sinks, and sanitary installations
- Hair dryers and certain electric personal-care heating devices
Exclusions: small handheld kitchen appliances with motors — blenders, food processors, mixers — are typically Class 7 (machines). Non-powered hand tools and cutlery are Class 8. And the electronics and software in a smart appliance are Class 9. The instinct to file every "kitchen gadget" in Class 11 is a frequent source of misfiles.
Boundary note: A smart thermostat is the textbook split. The heating/cooling control apparatus side touches Class 11, but the connected device, sensors, and companion app are Class 9. Smart-home brands routinely file both to protect the hardware and the technology.
The Smart-Home Class Split
Connected appliances have made the Class 11 / Class 9 boundary one of the most active in consumer goods. A smart refrigerator, a Wi-Fi oven, or an app-controlled lighting system is simultaneously an appliance (Class 11) and an electronic, software-driven device (Class 9). Filing only Class 11 protects the physical machine but leaves the app, the connectivity, and the digital brand experience exposed — and for many smart-home startups, the software is the product.
The practical approach is to map what the brand actually sells. A traditional appliance maker may need only Class 11; a connected-device startup almost always needs Class 9 alongside it. Our Class 9 guide covers the electronics and software side in depth.
Notable Brands in Class 11
- Whirlpool — refrigerators, ovens, and home appliances across a broad Class 11 portfolio
- Philips — lighting and home appliance marks, historically one of the great lighting brands
- Dyson — fans, heaters, and air-treatment devices, with strong design and trade-dress protection
- Carrier — HVAC and air-conditioning systems, a category-defining Class 11 brand
Common Filing Mistakes
- Filing motorized kitchen gadgets in Class 11: blenders and mixers are usually Class 7.
- Missing Class 9 for smart appliances: the connected tech needs its own class.
- Descriptive names: "Cool Air Systems" and similar describe the goods and tend to be refused.
- Overlooking design protection: distinctive appliance shapes can be protected as trade dress.
Frequently Asked Questions
Are kitchen appliances in Class 11?
Large cooking and refrigeration appliances — ovens, ranges, cooktops, refrigerators, and freezers — are in Class 11. But small motorized appliances like blenders, food processors, and mixers are usually Class 7, and non-powered tools and cutlery are Class 8. The line depends on whether the device is environmental-control apparatus or a motor-driven machine.
What class is a smart thermostat or smart appliance in?
It typically spans two classes. The heating, cooling, or appliance function touches Class 11, while the connected electronics, sensors, and companion app are Class 9. Smart-home brands usually file both classes to protect the hardware and the software, since the connected technology is often central to the product.
Is lighting in Class 11?
Yes. Lamps, lighting fixtures, and LED lighting apparatus are in Class 11. If the lighting is part of a connected smart-home system, the app and control electronics are additionally classified in Class 9, so smart-lighting brands often file across both.
Can I protect the design of my appliance?
Potentially, as trade dress, if the design is non-functional and has acquired distinctiveness. Brands like Dyson protect distinctive product shapes alongside their names. The core appliance is registered in Class 11, while distinctive design elements may warrant additional design-mark or trade-dress protection.
Search Class 11 Before You File
Appliance, lighting, and HVAC branding clusters tightly, and smart-home entrants add a technology dimension. Use tmarkmetric to browse registered Class 11 trademarks, check which names are taken, and search the broader registry before you commit. Map the Class 11 / Class 9 strategy up front if your product is connected.