XAMARIN holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software) with 1 filings. The WikiTrademarks Expansion Score is 7/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 10, 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 |
|---|---|---|---|---|---|
| 86982189 | XAMARIN | Sep 03, 2015 | Pending | 035 Advertising & Business 038 Telecommunications 041 Education & Entertainment | MICROSOFT CORPORATION |
| 86691619 | XAMARIN | Jul 13, 2015 | Pending | 042 Science & Technology | MICROSOFT CORPORATION |
| 86683741 | XAMARIN | Jul 06, 2015 | Pending | 009 Electronics & Software | MICROSOFT CORPORATION |
Weekly visibility reports showing how ChatGPT mentions XAMARIN, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: XAMARIN trademark portfolio
What trademarks does XAMARIN hold?
XAMARIN holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 9 (Electronics & Software), Class 42 (Science & Technology), Class 35 (Advertising & Business). The most recent filings are registered to MICROSOFT CORPORATION.
How many trademarks does XAMARIN have at the USPTO?
WikiTrademarks tracks 3 USPTO trademark filings attributed to XAMARIN. The brand has been actively filing since July 2015. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does XAMARIN file most often?
XAMARIN'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 XAMARIN trademark?
The most recent filings under the XAMARIN mark are registered to MICROSOFT CORPORATION. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is XAMARIN expanding into new categories?
The current WikiTrademarks Expansion Score for XAMARIN is 7 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 XAMARIN trademark filings?
Click the Watch Brand button at the top of this page to add XAMARIN 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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