DENKA ER holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 17 (Rubber & Insulation) 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 September 1, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
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Ownership & Assignment History
1 record| Date | From | To |
|---|---|---|
| Nov 17, 2016 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
|
DENKA COMPANY LIMITED
TOKYO 103-8338
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 79003886 | DENKA ER | Jun 11, 2004 | Pending | 017 Rubber & Insulation | Denka Company Limited |
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FAQ: DENKA ER trademark portfolio
What trademarks does DENKA ER hold?
DENKA ER holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 17 (Rubber & Insulation). The most recent filings are registered to Denka Company Limited.
How many trademarks does DENKA ER have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DENKA ER. The brand has been actively filing since June 2004. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DENKA ER file most often?
DENKA ER's most active class is NICE Class 17 (Rubber & Insulation), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DENKA ER trademark?
The most recent filings under the DENKA ER mark are registered to Denka Company Limited. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DENKA ER expanding into new categories?
The current WikiTrademarks Expansion Score for DENKA ER 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 DENKA ER trademark filings?
Click the Watch Brand button at the top of this page to add DENKA ER 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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