CS50X holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 41 (Education & Entertainment) with 1 filings. The WikiTrademarks Expansion Score is 0/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed June 17, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 86848677 | CS50X | Dec 14, 2015 | Abandoned | 041 Education & Entertainment | President and Fellows of Harvard College |
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FAQ: CS50X trademark portfolio
What trademarks does CS50X hold?
CS50X holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 41 (Education & Entertainment). The most recent filings are registered to President and Fellows of Harvard College.
How many trademarks does CS50X have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to CS50X. The brand has been actively filing since December 2015. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does CS50X file most often?
CS50X's most active class is NICE Class 41 (Education & Entertainment), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the CS50X trademark?
The most recent filings under the CS50X mark are registered to President and Fellows of Harvard College. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is CS50X expanding into new categories?
The current WikiTrademarks Expansion Score for CS50X is 0 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 CS50X trademark filings?
Click the Watch Brand button at the top of this page to add CS50X 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 CS50X to another owner · Browse all NICE classes · Most valuable brands
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