DIAMOND ÉTERN-L 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 0/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed August 21, 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 |
|---|---|---|---|---|---|
| 76657618 | DIAMOND ÉTERN-L | Mar 31, 2006 | Abandoned | 005 Pharmaceuticals | DIAMOND HERPANACINE OF PA, INC. |
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FAQ: DIAMOND ÉTERN-L trademark portfolio
What trademarks does DIAMOND ÉTERN-L hold?
DIAMOND ÉTERN-L holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals). The most recent filings are registered to DIAMOND HERPANACINE OF PA, INC..
How many trademarks does DIAMOND ÉTERN-L have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DIAMOND ÉTERN-L. The brand has been actively filing since March 2006. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DIAMOND ÉTERN-L file most often?
DIAMOND ÉTERN-L'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 DIAMOND ÉTERN-L trademark?
The most recent filings under the DIAMOND ÉTERN-L mark are registered to DIAMOND HERPANACINE OF PA, INC.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DIAMOND ÉTERN-L expanding into new categories?
The current WikiTrademarks Expansion Score for DIAMOND ÉTERN-L 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 DIAMOND ÉTERN-L trademark filings?
Click the Watch Brand button at the top of this page to add DIAMOND ÉTERN-L 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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