STEMIN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals) 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 August 2, 2026
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Filing Velocity (24 Months)
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 79444137 | STEMIN | Jan 21, 2026 | Registered | 001 Chemicals | CEFO Co., Ltd. |
Weekly visibility reports showing how ChatGPT mentions STEMIN, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: STEMIN trademark portfolio
What trademarks does STEMIN hold?
STEMIN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals). The most recent filings are registered to CEFO Co., Ltd..
How many trademarks does STEMIN have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to STEMIN. 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 STEMIN file most often?
STEMIN's most active class is NICE Class 1 (Chemicals), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the STEMIN trademark?
The most recent filings under the STEMIN mark are registered to CEFO Co., Ltd.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is STEMIN expanding into new categories?
The current WikiTrademarks Expansion Score for STEMIN 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 STEMIN trademark filings?
Click the Watch Brand button at the top of this page to add STEMIN 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 STEMIN to another owner · Browse all NICE classes · Most valuable brands
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