DUOLOC BY CLASSEN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 6 (Metal Goods) with 1 filings. The WikiTrademarks Expansion Score is 3/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 13, 2026
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Filing Velocity (24 Months)
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 79418337 | DUOLOC BY CLASSEN | Jan 22, 2025 | Pending | 006 Metal Goods 019 Building Materials | Classen Holz Kontor GmbH |
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FAQ: DUOLOC BY CLASSEN trademark portfolio
What trademarks does DUOLOC BY CLASSEN hold?
DUOLOC BY CLASSEN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 6 (Metal Goods), Class 19 (Building Materials). The most recent filings are registered to Classen Holz Kontor GmbH.
How many trademarks does DUOLOC BY CLASSEN have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DUOLOC BY CLASSEN. The brand has been actively filing since January 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DUOLOC BY CLASSEN file most often?
DUOLOC BY CLASSEN's most active class is NICE Class 6 (Metal Goods), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DUOLOC BY CLASSEN trademark?
The most recent filings under the DUOLOC BY CLASSEN mark are registered to Classen Holz Kontor GmbH. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DUOLOC BY CLASSEN expanding into new categories?
The current WikiTrademarks Expansion Score for DUOLOC BY CLASSEN is 3 out of 100, which is low — the brand is focused on defending its existing categories rather than expanding. The score combines NICE class breadth, filing velocity, and the rate of cross-class movement from the brand's filing history.
How can I track new DUOLOC BY CLASSEN trademark filings?
Click the Watch Brand button at the top of this page to add DUOLOC BY CLASSEN to your Watchlist. New filings show up on your WikiTrademarks dashboard within 24 to 48 hours of being public, alongside any class expansions, status changes, or assignment events.
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