Comparing Trademarks Side by Side

GleanMark's comparison tool lets you view up to 5 trademarks side by side, comparing every detail from owner and status to goods and services. When comparing exactly 2 marks, you can run a Confusion Analysis directly.

How It Works

1. Select marks from search results — check the boxes next to trademarks you want to compare (up to 5)
2. Click Compare — or go directly to /compare?serials=12345678,87654321
3. Review the comparison — marks appear in columns with rows for each attribute
4. Run Confusion Analysis — when exactly 2 marks are selected, a button appears to run a full DuPont factor analysis

What's Compared

The comparison table shows these attributes side by side:

Attribute	What It Shows
Owner	Entity that owns the mark
Status	Registration status (color-coded badges)
Mark Category	Trademark, Service Mark, Collective, or Certification
Mark Type	Word, Stylized, Design, Sound, or Composite
Filing Date	Application date (earliest is highlighted)
First Use Date	Date of first commercial use
Registration Date	When registered (earliest highlighted)
Nice Classes	International classes with description tooltips
Goods & Services	Full description of covered goods/services
Current Basis	Filing basis (use-in-commerce, intent-to-use, etc.) — shows both current and original when they differ
TTAB Activity	Any opposition or cancellation proceedings

Earliest dates are highlighted across columns so you can quickly see which mark has seniority.

Sharing Comparisons

The comparison URL contains all selected serial numbers: /compare?serials=90244982,88126475. Copy and share the URL to send the comparison to a colleague — no login required to view.

Export

Use the export button to download the comparison data for offline review or client deliverables.

Tips

• Compare potential conflicts — after a knockout search, compare your proposed mark with the highest-risk results
• Check filing basis differences — a use-based application has different legal standing than an intent-to-use application
• Look at class overlap — if two marks are in the same Nice class, the conflict risk is higher
• Use the 2-mark Confusion Analysis — for the most thorough analysis, select exactly 2 marks and run the DuPont analysis

Related Features

• Power Search — Search and select marks for comparison
• Confusion Analysis (DuPont) — Full 13-factor analysis
• Reading Search Results — Understanding what each result shows

Need Help?

Click the chat icon in the bottom right or email support@gleanmark.com.