STACKAI holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 42 (Science & Technology) with 3 filings. The WikiTrademarks Expansion Score is 18/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed June 27, 2026
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Filing Velocity (24 Months)
Filing Activity by NICE Class
Nice Class Distribution
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99721091 | STACKAI | Mar 24, 2026 | Registered | 042 Science & Technology | Eigen Inc. |
| 99658493 | STACKAI | Feb 18, 2026 | Registered | ["042"] | Eigen Inc. |
| 99433307 | STACKAI | Oct 08, 2025 | Registered | 042 Science & Technology | Edra Labs, LLP |
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FAQ: STACKAI trademark portfolio
What trademarks does STACKAI hold?
STACKAI holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 42 (Science & Technology). The most recent filings are registered to Eigen Inc..
How many trademarks does STACKAI have at the USPTO?
WikiTrademarks tracks 3 USPTO trademark filings attributed to STACKAI. The brand has been actively filing since October 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does STACKAI file most often?
STACKAI's most active class is NICE Class 42 (Science & Technology), with 3 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the STACKAI trademark?
The most recent filings under the STACKAI mark are registered to Eigen Inc.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is STACKAI expanding into new categories?
The current WikiTrademarks Expansion Score for STACKAI is 18 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 STACKAI trademark filings?
Click the Watch Brand button at the top of this page to add STACKAI 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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