C CORNERSTONE LABS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals) 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 September 3, 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 |
|---|---|---|---|---|---|
| 99602735 | C CORNERSTONE LABS | Jan 19, 2026 | Registered | 005 Pharmaceuticals | Tae Hyeon Yoon |
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FAQ: C CORNERSTONE LABS trademark portfolio
What trademarks does C CORNERSTONE LABS hold?
C CORNERSTONE LABS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals). The most recent filings are registered to Tae Hyeon Yoon.
How many trademarks does C CORNERSTONE LABS have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to C CORNERSTONE LABS. 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 C CORNERSTONE LABS file most often?
C CORNERSTONE LABS's most active class is NICE Class 5 (Pharmaceuticals), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the C CORNERSTONE LABS trademark?
The most recent filings under the C CORNERSTONE LABS mark are registered to Tae Hyeon Yoon. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is C CORNERSTONE LABS expanding into new categories?
The current WikiTrademarks Expansion Score for C CORNERSTONE LABS 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 C CORNERSTONE LABS trademark filings?
Click the Watch Brand button at the top of this page to add C CORNERSTONE LABS 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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