NGK holds 5 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software) with 3 filings. The WikiTrademarks Expansion Score is 23/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed June 28, 2026
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Filing Velocity (24 Months)
Filing Activity by NICE Class
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99616721 | NGK | Jan 27, 2026 | Registered | 007 Machinery | NIPPON TOKUSHU TOGYO KABUSHIKI KAISHA |
| 79409212 | NGK | Jun 24, 2024 | Pending | 007 Machinery 011 Lighting & HVAC | NGK INSULATORS, LTD. |
| 79223784 | NGK | Sep 06, 2017 | Pending | 009 Electronics & Software | NGK Insulators, LTD. |
| 79180424 | NGK | Oct 23, 2015 | Pending | 009 Electronics & Software 014 Jewelry & Watches | NGK Insulators, Ltd. |
| 79180587 | NGK | Mar 04, 2015 | Pending | ["009"] | NGK Insulators, Ltd. |
Weekly visibility reports showing how ChatGPT mentions NGK, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: NGK trademark portfolio
What trademarks does NGK hold?
NGK holds 5 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software), Class 7 (Machinery), Class 11 (Lighting & HVAC). The most recent filings are registered to NIPPON TOKUSHU TOGYO KABUSHIKI KAISHA.
How many trademarks does NGK have at the USPTO?
WikiTrademarks tracks 5 USPTO trademark filings attributed to NGK. The brand has been actively filing since March 2015. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does NGK file most often?
NGK's most active class is NICE Class 9 (Electronics & Software), with 3 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the NGK trademark?
The most recent filings under the NGK mark are registered to NIPPON TOKUSHU TOGYO KABUSHIKI KAISHA. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is NGK expanding into new categories?
The current WikiTrademarks Expansion Score for NGK is 23 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 NGK trademark filings?
Click the Watch Brand button at the top of this page to add NGK 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 NGK to another owner · Browse all NICE classes · Most valuable brands
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