SOU SIK holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) with 1 filings. The WikiTrademarks Expansion Score is 9/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 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 |
|---|---|---|---|---|---|
| 99594532 | SOU SIK | Jan 14, 2026 | Registered | 011 Lighting & HVAC | Shanghai RFA Cultural Communication Co., Ltd. |
| 99594593 | SOU SIK | Jan 14, 2026 | Registered | 021 Housewares | Shanghai RFA Cultural Communication Co., Ltd. |
Weekly visibility reports showing how ChatGPT mentions SOU SIK, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: SOU SIK trademark portfolio
What trademarks does SOU SIK hold?
SOU SIK holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC), Class 21 (Housewares). The most recent filings are registered to Shanghai RFA Cultural Communication Co., Ltd..
How many trademarks does SOU SIK have at the USPTO?
WikiTrademarks tracks 2 USPTO trademark filings attributed to SOU SIK. The brand has been actively filing since January 2026. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does SOU SIK file most often?
SOU SIK's most active class is NICE Class 11 (Lighting & HVAC), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the SOU SIK trademark?
The most recent filings under the SOU SIK mark are registered to Shanghai RFA Cultural Communication Co., Ltd.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is SOU SIK expanding into new categories?
The current WikiTrademarks Expansion Score for SOU SIK is 9 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 SOU SIK trademark filings?
Click the Watch Brand button at the top of this page to add SOU SIK 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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