Trademark Class 11: Environmental control apparatus

Apparatus for lighting, heating, cooking, refrigerating, drying, ventilating and water supply.

What class 11 covers

Class 11 is one of the 45 international classes used by the USPTO and most trademark offices worldwide, under the Nice Classification. Classes 1 to 34 cover goods — physical products — and classes 35 to 45 cover services. Class 11 is a goods class.

You register a mark for particular goods or services, not in the abstract. That is why the same word can be owned by unrelated businesses in different classes, and why picking the right class matters as much as picking the right name.

Typically included in class 11

Lighting apparatus and fixtures
Heating and HVAC equipment
Cooking appliances
Refrigerators and freezers
Water filtration and supply
Sanitary installations
Air purifiers

Business types that usually file here

Appliance manufacturers
HVAC companies
Lighting brands
Plumbing fixture makers
Water filtration companies
Commercial kitchen suppliers

Notable brands operating in class 11

Companies whose goods or services fall wholly or partly within this class. This is a list of well-known names in the space, not a ranking — there is no authoritative public measure of trademark "size", and most of these businesses hold registrations across several classes rather than this one alone.

Whirlpool
Carrier
Trane Technologies
Lennox
A. O. Smith
Rheem
Generac
Acuity Brands
Signify
Kohler
Moen
American Standard
Delta Faucet
Bosch
GE Appliances
LG
Samsung
Electrolux
Sub-Zero
Viking Range
Traeger
Weber
Pentair
Watts
Daikin

Choosing the right class

Three mistakes cost applicants the most in this area:

Filing in too few classes. If you sell a product and also provide a service around it, that is often two classes. Registering only one leaves the other unprotected.
Filing in too many. Each class costs a separate fee, and the USPTO expects you to be using the mark, or to have a genuine intent to use it, for everything you list.
Ignoring related classes. Examiners routinely treat certain classes as related — clothing and clothing retail, for instance, or food products and restaurant services. A conflict in a related class can block you just as effectively as one in your own.

Our search checks related classes automatically, so a conflict in an adjacent class shows up rather than being silently ignored.