STACKS holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 43 (Food & Drink Services) with 1 filings. The WikiTrademarks Expansion Score is 40/100, moderate — the brand is steadily adding adjacent classes.
USPTO data refreshed July 14, 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 |
|---|---|---|---|---|---|
| 99807670 | STACKS | May 06, 2026 | Registered | 041 Education & Entertainment 042 Science & Technology | CALLI LLC |
| 99665168 | STACKS | Feb 23, 2026 | Registered | ["043"] | Jason Habash |
Weekly visibility reports showing how ChatGPT mentions STACKS, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: STACKS trademark portfolio
What trademarks does STACKS hold?
STACKS holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 43 (Food & Drink Services), Class 41 (Education & Entertainment), Class 42 (Science & Technology). The most recent filings are registered to CALLI LLC.
How many trademarks does STACKS have at the USPTO?
WikiTrademarks tracks 2 USPTO trademark filings attributed to STACKS. The brand has been actively filing since February 2026. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does STACKS file most often?
STACKS's most active class is NICE Class 43 (Food & Drink Services), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the STACKS trademark?
The most recent filings under the STACKS mark are registered to CALLI LLC. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is STACKS expanding into new categories?
The current WikiTrademarks Expansion Score for STACKS is 40 out of 100, which is moderate — the brand is steadily adding adjacent classes. 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 STACKS trademark filings?
Click the Watch Brand button at the top of this page to add STACKS 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 STACKS to another owner · Browse all NICE classes · Most valuable brands
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