QRK holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software) 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 22, 2026
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Sign in to claimHow is QRK filing trademarks, and where is the portfolio expanding?
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 |
|---|---|---|---|---|---|
| 99381612 | QRK | Sep 08, 2025 | Pending | 009 Electronics & Software | Yuelin Ma |
Weekly visibility reports showing how ChatGPT mentions QRK, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: QRK trademark portfolio
What trademarks does QRK hold?
QRK holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software). The most recent filings are registered to Yuelin Ma.
How many trademarks does QRK have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to QRK. 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 QRK file most often?
QRK's most active class is NICE Class 9 (Electronics & Software), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the QRK trademark?
The most recent filings under the QRK mark are registered to Yuelin Ma. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is QRK expanding into new categories?
The current WikiTrademarks Expansion Score for QRK 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 QRK trademark filings?
Click the Watch Brand button at the top of this page to add QRK 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 QRK to another owner · Browse all NICE classes · Most valuable brands
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