PUREBLOCK holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) with 1 filings. The WikiTrademarks Expansion Score is 1/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed June 15, 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 |
|---|---|---|---|---|---|
| 86443984 | PUREBLOCK | Nov 04, 2014 | Pending | 011 Lighting & HVAC | Multipure International |
Weekly visibility reports showing how ChatGPT mentions PUREBLOCK, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: PUREBLOCK trademark portfolio
What trademarks does PUREBLOCK hold?
PUREBLOCK holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC). The most recent filings are registered to Multipure International.
How many trademarks does PUREBLOCK have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to PUREBLOCK. The brand has been actively filing since November 2014. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does PUREBLOCK file most often?
PUREBLOCK's most active class is NICE Class 11 (Lighting & HVAC), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the PUREBLOCK trademark?
The most recent filings under the PUREBLOCK mark are registered to Multipure International. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is PUREBLOCK expanding into new categories?
The current WikiTrademarks Expansion Score for PUREBLOCK is 1 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 PUREBLOCK trademark filings?
Click the Watch Brand button at the top of this page to add PUREBLOCK 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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