DBL holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 15 (Musical Instruments) with 1 filings. The WikiTrademarks Expansion Score is 1/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed November 12, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 90173293 | DBL | Sep 11, 2020 | Pending | 015 Musical Instruments | WEIFANG YIFENG MUSICAL INSTRUMENT CO., LTD. |
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FAQ: DBL trademark portfolio
What trademarks does DBL hold?
DBL holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 15 (Musical Instruments). The most recent filings are registered to WEIFANG YIFENG MUSICAL INSTRUMENT CO., LTD..
How many trademarks does DBL have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DBL. The brand has been actively filing since September 2020. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DBL file most often?
DBL's most active class is NICE Class 15 (Musical Instruments), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DBL trademark?
The most recent filings under the DBL mark are registered to WEIFANG YIFENG MUSICAL INSTRUMENT CO., LTD.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DBL expanding into new categories?
The current WikiTrademarks Expansion Score for DBL is 1 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 DBL trademark filings?
Click the Watch Brand button at the top of this page to add DBL 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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