DUN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals) with 1 filings. The WikiTrademarks Expansion Score is 24/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 22, 2026
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Filing Velocity (24 Months)
Filing Activity by NICE Class
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99822440 | DUN | May 14, 2026 | Registered | 005 Pharmaceuticals | Chunfeng Li |
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FAQ: DUN trademark portfolio
What trademarks does DUN hold?
DUN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals). The most recent filings are registered to Chunfeng Li.
How many trademarks does DUN have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DUN. The brand has been actively filing since May 2026. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DUN file most often?
DUN's most active class is NICE Class 5 (Pharmaceuticals), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DUN trademark?
The most recent filings under the DUN mark are registered to Chunfeng Li. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DUN expanding into new categories?
The current WikiTrademarks Expansion Score for DUN is 24 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 DUN trademark filings?
Click the Watch Brand button at the top of this page to add DUN 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.
More on this portfolio: Compare DUN to another owner · Browse all NICE classes · Most valuable brands
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