DUO-LOCK holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 7 (Machinery) with 1 filings. The WikiTrademarks Expansion Score is 0/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 12, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 79141225 | DUO-LOCK | Nov 11, 2013 | Pending | 007 Machinery 008 Hand Tools | Haimer GmbH |
| 86069187 | DUO-LOCK | Sep 19, 2013 | Abandoned | 027 Carpets & Rugs | MOHAWK CARPET DISTRIBUTION, LLC |
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FAQ: DUO-LOCK trademark portfolio
What trademarks does DUO-LOCK hold?
DUO-LOCK holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 7 (Machinery), Class 8 (Hand Tools), Class 27 (Carpets & Rugs). The most recent filings are registered to Haimer GmbH.
How many trademarks does DUO-LOCK have at the USPTO?
WikiTrademarks tracks 2 USPTO trademark filings attributed to DUO-LOCK. The brand has been actively filing since September 2013. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DUO-LOCK file most often?
DUO-LOCK's most active class is NICE Class 7 (Machinery), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DUO-LOCK trademark?
The most recent filings under the DUO-LOCK mark are registered to Haimer GmbH. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DUO-LOCK expanding into new categories?
The current WikiTrademarks Expansion Score for DUO-LOCK is 0 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 DUO-LOCK trademark filings?
Click the Watch Brand button at the top of this page to add DUO-LOCK 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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