PEI holds 4 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 17 (Rubber & Insulation) with 1 filings. The WikiTrademarks Expansion Score is 8/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 30, 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 |
|---|---|---|---|---|---|
| 99426528 | PEI | Oct 03, 2025 | Registered | 009 Electronics & Software | SIELC Technologies Corporation |
| 79383757 | PEI | Feb 09, 2023 | Pending | 012 Vehicles | P.E.I. PROTEZIONI ELABORAZIONI INDUSTRIALI S.R.L. |
| 88637547 | PEI | Oct 01, 2019 | Pending | 017 Rubber & Insulation | PITTSBURGH ELECTRICAL INSULATION, LLC |
| 87256846 | PEI | Dec 05, 2016 | Pending | 035 Advertising & Business | Getwellnetwork, Inc. |
Weekly visibility reports showing how ChatGPT mentions PEI, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: PEI trademark portfolio
What trademarks does PEI hold?
PEI holds 4 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 17 (Rubber & Insulation), Class 9 (Electronics & Software), Class 35 (Advertising & Business). The most recent filings are registered to SIELC Technologies Corporation.
How many trademarks does PEI have at the USPTO?
WikiTrademarks tracks 4 USPTO trademark filings attributed to PEI. The brand has been actively filing since December 2016. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does PEI file most often?
PEI'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 PEI trademark?
The most recent filings under the PEI mark are registered to SIELC Technologies Corporation. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is PEI expanding into new categories?
The current WikiTrademarks Expansion Score for PEI is 8 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 PEI trademark filings?
Click the Watch Brand button at the top of this page to add PEI 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 PEI to another owner · Browse all NICE classes · Most valuable brands
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