C4 holds 5 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 42 (Science & Technology) with 2 filings. The WikiTrademarks Expansion Score is 26/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 6, 2026
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Sign in to claimHow is C4 filing trademarks, and where is the portfolio expanding?
Filing Velocity (24 Months)
Filing Activity by NICE Class
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99660206 | C4 | Feb 19, 2026 | Registered | ["B"] | Prestressed Concrete Institute |
| 99181288 | C4 | May 12, 2025 | Registered | 036 Insurance & Finance 041 Education & Entertainment 042 Science & Technology | NR Hunt |
| 79199895 | C4 | Sep 12, 2016 | Pending | 030 Staple Foods & Beverages 031 Fresh Produce & Agriculture 042 Science & Technology | The Chancellor Masters and Scholars of the University of Oxford |
| 86080418 | C4 | Oct 02, 2013 | Abandoned | 038 Telecommunications | CLARO S.A. |
| 78064945 | C4 | May 22, 2001 | Abandoned | 009 Electronics & Software | ARRIS ENTERPRISES LLC |
Weekly visibility reports showing how ChatGPT mentions C4, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: C4 trademark portfolio
What trademarks does C4 hold?
C4 holds 5 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 42 (Science & Technology), Class 0 (Class B), Class 30 (Staple Foods & Beverages). The most recent filings are registered to Prestressed Concrete Institute.
How many trademarks does C4 have at the USPTO?
WikiTrademarks tracks 5 USPTO trademark filings attributed to C4. The brand has been actively filing since May 2001. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does C4 file most often?
C4's most active class is NICE Class 42 (Science & Technology), with 2 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the C4 trademark?
The most recent filings under the C4 mark are registered to Prestressed Concrete Institute. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is C4 expanding into new categories?
The current WikiTrademarks Expansion Score for C4 is 26 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 C4 trademark filings?
Click the Watch Brand button at the top of this page to add C4 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 C4 to another owner · Browse all NICE classes · Most valuable brands
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