Goods

Trademark Class 11: HVAC, Lighting & Kitchen Appliances

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

145,544live trademarks

Filing Activity

Trademark applications and registrations in Class 11 over the past 15 years.

Applications
Registrations

Class 11 covers apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply, and sanitary purposes. With over 145,500 live marks, it is a high-volume class serving the HVAC, plumbing, lighting, kitchen appliance, and water treatment industries. The class's breadth — from LED light bulbs to industrial water purification systems — makes it relevant to both consumer product brands and commercial equipment manufacturers.

The top filing entities — Overseas Operation Services (Flatfee Corp), Muncy Geissler Olds & Lowe, and Di Li Law — reflect the class's appeal to both high-volume consumer brands and specialized industrial equipment manufacturers. The smart home revolution has driven significant recent filing activity, as traditional lighting and HVAC products gain connected features and new market entrants launch IoT-enabled home climate and water systems.

The most frequently contested classification boundary in Class 11 involves Class 7 and Class 9. The rule for kitchen appliances is functional: if the appliance primarily uses heat or cold to process food (ovens, toasters, refrigerators), it belongs in Class 11; if it mechanically processes food (blenders, food processors), it belongs in Class 7. The Class 9 boundary is equally important: electronic control panels and sensors are Class 9, but the heating, cooling, or lighting apparatus they control is Class 11. Smart thermostats present a recurring gray area — the thermostat as a control device may implicate Class 9, while the HVAC system it governs is clearly Class 11. Water filtration systems and purifiers are Class 11, but chemical water treatment preparations are Class 1.

Home appliance brands typically file across Classes 7, 9, 11, and 21, covering mechanical appliances, electronic components, heating and cooling apparatus, and household containers. Commercial HVAC companies pair Class 11 with Class 37 for installation and repair services. Plumbing fixture manufacturers often add Class 6 for metal fittings and Class 20 for non-metal bathroom accessories. The intersection of Class 11 with smart home technology makes multi-class filings including Class 9 and Class 42 increasingly standard.

What's Included in Class 11

Class 11 includes mainly environmental control apparatus and installations, in particular, for the purposes of lighting, cooking, cooling and sanitizing.

air-conditioning apparatus and installations;
ovens, other than for laboratory use, for example, dental ovens, microwave ovens, bakers' ovens;
stoves being heating apparatus;
solar thermal collectors;
chimney flues, chimney blowers, hearths, domestic fireplaces;

steam producing apparatus being parts of machines (Cl. 7);
air condensers (Cl. 7);
current generators, generators of electricity (Cl. 7);
soldering lamps (Cl. 7), optical lamps, darkroom lamps (Cl. 9), lamps for medical purposes (Cl. 10);
ovens for laboratory use (Cl. 9);

💡 LED light bulbs and lamp fixtures

❄️ Air conditioning units and fans

🧊 Refrigerators and freezers

🔥 Water heaters and boilers

🍳 Kitchen ovens and stoves

🚰 Water filtration systems

🚿 Shower fixtures and bathroom faucets

🌬️ Industrial drying equipment

Top Filers in Class 11

#	Owner	Filings	Registered	First Reg.	Latest Reg.
1	KOHLER CO.	651	530	Jan 20, 1914	Dec 2, 2025
2	LG ELECTRONICS, INC.	306	264	Mar 29, 2005	Mar 24, 2026
3	DELTA FAUCET COMPANY	280	230	Oct 28, 1958	Feb 10, 2026
4	SIGNIFY HOLDING B.V.	255	221	Jun 10, 1958	Mar 3, 2026
5	AS AMERICA, INC.	224	210	Sep 12, 1978	Oct 28, 2025
6	CONAIR LLC	144	123	Sep 24, 1974	Feb 24, 2026
7	HOME DEPOT PRODUCT AUTHORITY, LLC	141	123	Sep 23, 1997	Nov 4, 2025
8	WATKINS MANUFACTURING CORPORATION	141	137	Mar 6, 1990	Apr 15, 2025
9	SAMSUNG ELECTRONICS, CO., LTD.	137	125	Nov 6, 1979	Feb 24, 2026
10	STREAMLIGHT, INC.	132	126	May 17, 1983	Mar 10, 2026

Top Law Firms in Class 11

#	Firm	Total	Registered	Pending	Dead
1	Overseas Operation Services, Inc. DBA Flatfee Corp.	1,756	1,118	453	185
2	Muncy, Geissler, Olds & Lowe, P.C.	1,301	805	131	365
3	DI LI LAW, P.C.	1,271	1,082	12	177
4	MASCO CORPORATION	1,241	501	85	655
5	Kunzler Bean & Adamson	1,193	963	99	131
6	PATTISHALL, MCAULIFFE, NEWBURY, HILLIARD & GERALDS	1,173	662	155	356
7	Ni, Wang & Massand, PLLC	1,070	850	31	189
8	Intellectual Property Consulting, LLC	1,035	828	45	162
9	TIANYU LAW GROUP, INC.	1,016	765	47	204
10	BARTHOLOMEW LAW, PC	992	766	134	92

Recent Registrations

Mark	Owner	Registered	Goods & Services
TECHECOOK	HU, HAO	Mar 10, 2026	Water filtration and purification units and replacement cartridges and filters therefor; HEPA filters for household use; Stoves being heating apparatus; Filters for air extractor hoods; Heating elements
BACTOFLOR	Intercell Pharma	Mar 10, 2026	Nutritional supplements; medicine.; Cultures of microorganisms for industrial purposes; bacteria for use in food manufacture.
QUOYARD	HONG KONG YINTA INTERNATIONAL TRADE COMPANY LIMITED	Mar 10, 2026	Class 006: Metal greenhouses; Metal greenhouse frames; Gazebos primarily of metal; Metal mailboxes; Safe deposit boxes; Metal tool boxes; Doorway barriers made of metal; Roof coverings of metal; Garden stakes of metal; Metal handrails for stairs; Metal posts; Barricades of metal; Metal utility poles; Metal palings; Poultry cages of metal; Metal storage sheds; Class 011: Ceiling fans with integrated lights; Sinks; Roof fans; Electric fans for household use; Floor lamps; table lamps; wall lamps; LED lighting fixtures for indoor and outdoor lighting applications; Residential air-conditioning units; Ice making machines; Display freezers; Refrigeration equipment, namely, rapid food chilling units; Ceiling light fixtures; Lighting installations for vehicles; Lights for vehicles; Automobile headlights; Tail lights for vehicles; LED light assemblies for street lights, signs, commercial lighting, automobiles, buildings, and other architectural uses; Spot lights for use on vehicles; Light bars for vehicles for lighting purposes; Air-conditioning installations and apparatus; Vehicle headlights; Class 020: Furniture; Metal furniture and furniture for camping; Outdoor furniture; Furniture shelves; Rattan furniture; Furniture partitions; Furniture chests; Bedroom furniture; Non-metal storage boxes for general use; Bathroom vanities being furniture; Work benches; Chairs; Rocking chairs; Porch swings; Sofas; Tea tables; Shoe racks; Sleep products, namely, mattresses, spring mattresses, box springs and mattress foundations; Bed frames; Stands for flower pots; Mattresses; Kitchen furniture, namely, ready to assemble mobile kitchen islands; Office tables; Coat racks; Combination benches and deck boxes; Non-metal bins; Pet furniture; Pet grooming tables; Beds for household pets; Cat trees; Pet crates; Dog kennels; Room dividers; Class 028: Swings; Artificial Christmas trees; Exercise wheels for cats; Toy for pets; Christmas trees of synthetic material
ZEPHIRION	Shenzhen Eason Optoelectronics Technology Co., Ltd	Mar 10, 2026	Ceiling lights; Downlights; LED luminaires
SUAVIR	HONG KONG YINTA INTERNATIONAL TRADE COMPANY LIMITED	Mar 10, 2026	Class 006: Metal greenhouses; Metal greenhouse frames; Gazebos primarily of metal; Metal mailboxes; Safe deposit boxes; Metal tool boxes; Doorway barriers made of metal; Roof coverings of metal; Garden stakes of metal; Metal handrails for stairs; Metal posts; Barricades of metal; Metal palings; Poultry cages of metal; Metal storage sheds; Class 011: Ceiling fans with integrated lights; Sinks; Roof fans; Electric fans for household use; Floor lamps; table lamps; wall lamps; LED lighting fixtures for indoor and outdoor lighting applications; Residential air-conditioning units; Ice making machines; Display freezers; Refrigeration equipment, namely, rapid food chilling units; Ceiling light fixtures; Lighting installations for vehicles; Lights for vehicles; Automobile headlights; Tail lights for vehicles; LED light assemblies for street lights, signs, commercial lighting, automobiles, buildings, and other architectural uses; Spot lights for use on vehicles; Light bars for vehicles for lighting purposes; Air-conditioning installations and apparatus; Vehicle headlights; Class 020: Furniture; Metal furniture and furniture for camping; Outdoor furniture; Furniture shelves; Rattan furniture; Furniture partitions; Furniture chests; Bedroom furniture; Non-metal storage boxes for general use; Bathroom vanities being furniture; Work benches; Chairs; Porch swings; Sofas; Tea tables; Shoe racks; Sleep products, namely, mattresses, spring mattresses, box springs and mattress foundations; Bed frames; Stands for flower pots; Mattresses; Kitchen furniture, namely, ready to assemble mobile kitchen islands; Coat racks; Combination benches and deck boxes; Non-metal bins; Pet furniture; Pet grooming tables; Beds for household pets; Cat trees; Pet crates; Dog kennels; Room dividers; Shoe cabinets; Portable outdoor privacy screen for sunbathing; Class 028: Swings; Artificial Christmas trees; Christmas trees of synthetic material
YPZWM	Gansheng Zhang	Mar 10, 2026	Class 011: Filters for drinking water; Household air cleaners; Smoke generating apparatus for infusing cocktails with smoke; Ceiling fans with integrated lights; Ceiling fans; Candle lamps; LED light strips for decorative purposes; Portable electric fans; Air sterilisers; Electric food warmers; Toilet bowls; Hand-held shower heads; Sinks; Downlights; Humidifiers
BRAVEFLOWER	Meiyong Huang	Mar 10, 2026	Class 011: Humidifiers; Hand-held showers; Laser light projectors; Dehumidifiers; Light bulbs, electric; Hot water heaters; Electric barbecue smokers; Toilet bowls; Air purifiers for household purposes; Electric ice cream makers; Air conditioners; Ice making machines; Bicycle lights; Nail lamps; Sterilizers; Electric hair dryers; Water purification and filtration apparatus; Electric refrigerators; Bathtubs; Showers and shower cubicles
COMBLUSH	Guangzhou Zhanye Display Co., Ltd.	Mar 10, 2026	Class 011: Lighting apparatus, namely, lighting installations; Spot lights; Tactical flashlights; Flashlights; Head torches; Outdoor lamps; LED floodlights; Emergency lights for lighting purposes
VACRAC	THE MASSA DESIGN & BUILDING CO LLC	Mar 10, 2026	Plumbing fixtures, namely, preassembled modular vacuum plumbing assemblies for use with a plumbing fixture for providing water supply and vacuum-assisted waste removal
YRLXW	Gansheng Zhang	Mar 10, 2026	Class 011: Lightbulbs; Air purifiers; Filters for drinking water; Downlights; Ceiling fans with integrated lights; Ceiling fans; Candle lamps; LED light strips for decorative purposes; Headlamps for automobiles; Portable electric fans; Air sterilisers; Electric food warmers; Toilet bowls; Hand-held shower heads; Sinks

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Frequently Asked Questions

Are kitchen appliances in Class 11 or Class 7?

Cooking appliances that heat, cool, or process food (ovens, microwaves, refrigerators, toasters) belong in Class 11. Kitchen machines that mechanically process food (blenders, food processors, mixers) belong in Class 7.

Does Class 11 cover light bulbs and lamp shades?

Yes. Lighting apparatus and installations, including light bulbs, lamps, chandeliers, and lamp shades, are all classified in Class 11.

Are humidifiers in Class 11?

Yes. Humidifiers, dehumidifiers, and air purifiers fall under Class 11 as apparatus for ventilation and air treatment purposes.

Are smart home devices like smart thermostats in Class 11 or Class 9?

Smart thermostats are a gray area. The thermostat as an electronic control device may be filed in Class 9, but the HVAC system it controls is Class 11. Many smart home brands file in both classes to cover the device and the climate-control functionality.

Do EV chargers belong in Class 11?

No. Electric vehicle charging stations and chargers are classified in Class 9 as electrical apparatus. Class 11 covers heating, lighting, and cooking equipment, not battery charging devices.

Are LED light strips and smart bulbs in Class 11?

Yes. LED light strips, smart bulbs, and all lighting apparatus belong in Class 11 regardless of whether they have electronic connectivity features. The lighting function determines the classification.

What is a common mistake applicants make when filing in Class 11?

The most common mistake is filing kitchen machines like blenders and food processors in Class 11 instead of Class 7. Class 11 only covers appliances that use heat, cold, or steam to process food (ovens, refrigerators, toasters). Mechanical food processing machines belong in Class 7.

Are water filtration pitchers in Class 11 or Class 21?

Water filtration and purification apparatus belongs in Class 11. However, a simple non-filtering pitcher is Class 21 (household utensils). The filtration function is what places the product in Class 11.

Should a smart home appliance brand file in multiple classes?

Yes. Home appliance brands typically need Classes 7 (mechanical appliances), 9 (electronic controls and apps), 11 (heating, cooling, and lighting), and 21 (non-electric household items). Filing in only one class leaves significant gaps in protection.

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