STEMSTERS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 35 (Advertising & Business) with 1 filings. The WikiTrademarks Expansion Score is 24/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 6, 2026
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Filing Velocity (24 Months)
Filing Activity by NICE Class
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99812061 | STEMSTERS | May 08, 2026 | Registered | 035 Advertising & Business | Ivan Leong |
Weekly visibility reports showing how ChatGPT mentions STEMSTERS, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: STEMSTERS trademark portfolio
What trademarks does STEMSTERS hold?
STEMSTERS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 35 (Advertising & Business). The most recent filings are registered to Ivan Leong.
How many trademarks does STEMSTERS have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to STEMSTERS. The brand has been actively filing since May 2026. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does STEMSTERS file most often?
STEMSTERS's most active class is NICE Class 35 (Advertising & Business), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the STEMSTERS trademark?
The most recent filings under the STEMSTERS mark are registered to Ivan Leong. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is STEMSTERS expanding into new categories?
The current WikiTrademarks Expansion Score for STEMSTERS is 24 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 STEMSTERS trademark filings?
Click the Watch Brand button at the top of this page to add STEMSTERS 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 STEMSTERS to another owner · Browse all NICE classes · Most valuable brands
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