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DPL Patents: Patent Search

Patent Databases

Combining remote access and a graphic-user interface, AcclaimIP offers ease-of-use to DPL patrons.  Contact us to set up a session.

Index to the US Patent Classification System
Browse the index to find classes and subclasses for different technologies and designs. This is the first place to begin your preliminary patent search.

The United States Patent and Trademark Office (USPTO) patent grant and patent application databases.

Espacenet - European Patent Office (EPO)
The worldwide database enables you to search for information about published patent applications and grants from over 92 different countries and regions.

Located in the Special Collections Department of the Main Street Library, PubWEST is used by USPTO patent examiners.  Contact us to make a reservation.

Preliminary Search

Before you visit, it is recommended you watch this online tutorial on conducting a preliminary patent search.  This tutorial was created by the U.S. Patent and Trademark Office, USPTO, an agency of the Department of Commerce.

Quick Search

Advanced Patent Search