THE CLEF holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 41 (Education & Entertainment) with 1 filings. The WikiTrademarks Expansion Score is 4/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 1, 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 |
|---|---|---|---|---|---|
| 99421038 | THE CLEF | Sep 30, 2025 | Pending | 041 Education & Entertainment | Philadelphia Clef Club of the Performing Arts, Inc. |
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FAQ: THE CLEF trademark portfolio
What trademarks does THE CLEF hold?
THE CLEF holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 41 (Education & Entertainment). The most recent filings are registered to Philadelphia Clef Club of the Performing Arts, Inc..
How many trademarks does THE CLEF have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to THE CLEF. The brand has been actively filing since September 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does THE CLEF file most often?
THE CLEF's most active class is NICE Class 41 (Education & Entertainment), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the THE CLEF trademark?
The most recent filings under the THE CLEF mark are registered to Philadelphia Clef Club of the Performing Arts, Inc.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is THE CLEF expanding into new categories?
The current WikiTrademarks Expansion Score for THE CLEF is 4 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 THE CLEF trademark filings?
Click the Watch Brand button at the top of this page to add THE CLEF 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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