SDU holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 28 (Games & Toys) 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 10, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Ownership & Assignment History
1 record| Date | From | To |
|---|---|---|
| Jan 19, 2026 |
SHENZHEN PINCHEN TECHNOLOGY CO., LTD.
|
SHANTOU YUNKE TECHNOLOGY CO., LTD.
CHENGHAI DISTRICT, SHANTOU
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 90538075 | SDU | Feb 21, 2021 | Pending | 028 Games & Toys | SHANTOU YUNKE TECHNOLOGY CO., LTD. |
Weekly visibility reports showing how ChatGPT mentions SDU, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: SDU trademark portfolio
What trademarks does SDU hold?
SDU holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 28 (Games & Toys). The most recent filings are registered to SHANTOU YUNKE TECHNOLOGY CO., LTD..
How many trademarks does SDU have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to SDU. The brand has been actively filing since February 2021. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does SDU file most often?
SDU's most active class is NICE Class 28 (Games & Toys), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the SDU trademark?
The most recent filings under the SDU mark are registered to SHANTOU YUNKE TECHNOLOGY CO., LTD.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is SDU expanding into new categories?
The current WikiTrademarks Expansion Score for SDU 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 SDU trademark filings?
Click the Watch Brand button at the top of this page to add SDU 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 SDU to another owner · Browse all NICE classes · Most valuable brands
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