ER·20 holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software) 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 July 31, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 78617219 | ER·20 | Apr 26, 2005 | Abandoned | 009 Electronics & Software | Etymotic Research, Inc. |
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FAQ: ER·20 trademark portfolio
What trademarks does ER·20 hold?
ER·20 holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software). The most recent filings are registered to Etymotic Research, Inc..
How many trademarks does ER·20 have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to ER·20. The brand has been actively filing since April 2005. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does ER·20 file most often?
ER·20's most active class is NICE Class 9 (Electronics & Software), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the ER·20 trademark?
The most recent filings under the ER·20 mark are registered to Etymotic Research, Inc.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is ER·20 expanding into new categories?
The current WikiTrademarks Expansion Score for ER·20 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 ER·20 trademark filings?
Click the Watch Brand button at the top of this page to add ER·20 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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