IONIS holds 5 USPTO trademark filings across 4 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals) with 2 filings. The WikiTrademarks Expansion Score is 49/100, moderate — the brand is steadily adding adjacent classes.
USPTO data refreshed July 8, 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 |
|---|---|---|---|---|---|
| 99668507 | IONIS | Feb 24, 2026 | Registered | 036 Insurance & Finance | Ionis Pharmaceuticals, Inc. |
| 99666317 | IONIS | Feb 23, 2026 | Registered | 005 Pharmaceuticals | Ionis Pharmaceuticals, Inc. |
| 99666330 | IONIS | Feb 23, 2026 | Registered | 041 Education & Entertainment | Ionis Pharmaceuticals, Inc. |
| 99666334 | IONIS | Feb 23, 2026 | Registered | 044 Medical & Beauty Services | Ionis Pharmaceuticals, Inc. |
| 90157979 | IONIS | Sep 03, 2020 | Pending | 005 Pharmaceuticals 042 Science & Technology | Ionis Pharmaceuticals, Inc. |
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FAQ: IONIS trademark portfolio
What trademarks does IONIS hold?
IONIS holds 5 USPTO trademark filings across 4 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals), Class 41 (Education & Entertainment), Class 44 (Medical & Beauty Services). The most recent filings are registered to Ionis Pharmaceuticals, Inc..
How many trademarks does IONIS have at the USPTO?
WikiTrademarks tracks 5 USPTO trademark filings attributed to IONIS. The brand has been actively filing since September 2020. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does IONIS file most often?
IONIS's most active class is NICE Class 5 (Pharmaceuticals), with 2 filings. The full distribution across all 4 classes is shown in the Nice Class Distribution panel on this page.
Who owns the IONIS trademark?
The most recent filings under the IONIS mark are registered to Ionis Pharmaceuticals, Inc.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is IONIS expanding into new categories?
The current WikiTrademarks Expansion Score for IONIS is 49 out of 100, which is moderate — the brand is steadily adding adjacent classes. 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 IONIS trademark filings?
Click the Watch Brand button at the top of this page to add IONIS 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 IONIS to another owner · Browse all NICE classes · Most valuable brands
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