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Trademarks: Searching Trademaks

What are trademarks? How are they created? How are they lost?

Searching Tradmarks

If you simply wish to determine whether a trademark is in use, searching te web with Google or other search engine can be useful. For graphic trademarks, Google Images ( allows you to search both y keyword and by uploading the image you wish to search for.

For more formal trademark searches:

  • Most state trademark agencies have a search capability. For example, the California Trademark Search ( lets you search trademarks and service marks registered in the state of California. It does not have a graphic ssearch option.
  • The United States Patent and Trademark Office (USPTO) has a trademark search at has the Trademark Electronic Search System (TESS) ( TESS lets you search by keyword. While it does not have a direct graphic search option, it usese the Design Search Code Manual ( to enable you to identify design elements.
  • The World Intellectual Property Organization (@IPO)'s Madrid System offers tools for searching trademarks internationally. See for more information.
  • DesignView ( is a search system covering over 20 million designs from the European Union and beyond. You may search by keyword and/or uploading a graphic image for searching.
  • You can find a list of international trademark databases at the Patent and Trademark Resource Center Association website (
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