KS-21 holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals) with 2 filings. The WikiTrademarks Expansion Score is 19/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed June 17, 2026
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Sign in to claimHow is KS-21 filing trademarks, and where is the portfolio expanding?
Filing Velocity (24 Months)
Filing Activity by NICE Class
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 79447473 | KS-21 | Mar 03, 2026 | Registered | 001 Chemicals | MITSUBISHI HEAVY INDUSTRIES, LTD. |
| 79260815 | KS-21 | Mar 22, 2019 | Pending | 001 Chemicals | MITSUBISHI HEAVY INDUSTRIES, LTD. |
Weekly visibility reports showing how ChatGPT mentions KS-21, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: KS-21 trademark portfolio
What trademarks does KS-21 hold?
KS-21 holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals). The most recent filings are registered to MITSUBISHI HEAVY INDUSTRIES, LTD..
How many trademarks does KS-21 have at the USPTO?
WikiTrademarks tracks 2 USPTO trademark filings attributed to KS-21. The brand has been actively filing since March 2019. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does KS-21 file most often?
KS-21's most active class is NICE Class 1 (Chemicals), with 2 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the KS-21 trademark?
The most recent filings under the KS-21 mark are registered to MITSUBISHI HEAVY INDUSTRIES, LTD.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is KS-21 expanding into new categories?
The current WikiTrademarks Expansion Score for KS-21 is 19 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 KS-21 trademark filings?
Click the Watch Brand button at the top of this page to add KS-21 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 KS-21 to another owner · Browse all NICE classes · Most valuable brands
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