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Trademark Class 21: Housewares & glass

Class 21 is where brands for mugs, drinkware, and housewares live. Similar names filed in your class are the real risk — check yours free and watch for new ones.

Free check: has anyone filed something like your name?

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What Class 21 covers

Class 21 of the international (Nice) trademark classification is Housewares & glass. In practice, that's where you'll find brands for mugs, drinkware, and housewares. Every US trademark application declares one or more of the 45 classes, and the class is what decides whether two similar names actually conflict — DELTA for faucets and DELTA for airlines coexist because they're in different classes.

Why the class matters for monitoring

A new filing that's identical to your name but in an unrelated class is usually a curiosity. A merely similar name filed in Class 21 — your class — can be the real problem. That's why MarkAlarm weights class overlap heavily: same-class look-alikes can reach high-priority alerts, while different-class ones stay low — once you tell it which classes you sell in. A watch left open to all 45 classes has no class signal to weigh, so an identical name anywhere can still score high; setting classes is what turns the volume down. If your brand lives in Class 21, watching new filings in it is how you catch a conflict inside the 30-day window instead of months later.

Check your name free above, or watch it going forward from $49/year. This is information, not legal advice; the USPTO's ID Manual is the authoritative source for what belongs in each class.

Filed in Class 21 this week

436 new applications named Class 21 in the week of 2026-09-28. Recent examples:

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