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Stony Brook University

Patent & Trademark Resources on the Web

This guide directs you to free databases and other materials that explain and help with the patent and trademark search process

Trademark Websites

The following is a list of online trademark resources you may find useful in your research:

Trademark Databases

USPTO Trademark Electronic Search System - TESS
USPTO Trademark Status and Document Retrieval - TSDR (formerly Trademark Application and Registration Retrieval System - TARR)
USPTO Trademark Assignment Query Menu
USPTO Trademark Trial and Appeal Board Inquiry System - TTABVUE
Connecticut State Trademark/Business Name Search - Business Filings 
Canadian Trademarks Database
Trade Marks from the Patent Office of the United Kingdom
Madrid Express structured (Trademarks) Search
WIPO Gazette of International Marks
WIPO ROMARIN (International Trademark Information Database)
WIPO Article 6ter Structured Search (State Emblems, Official Hallmarks, and Emblems of Intergovernmental Organizations)
WIPO Appellations of Origin - Lisbon Structured Search
WIPOLex - WIPO Collection of Laws for Electronic Access

Trademark Classification Manuals and Search Guides

USPTO Basic Facts about Trademarks
Making a Mark: An Introduction to Trademarks for Small and Medium-sized Enterprises - WIPO (Downloadable PDF)
International (Nice) Schedule of Classes
USPTO Acceptable Identification of Goods and Services Manual U.S. and International Classification numbers
USPTO Design Code Search Manual
Trademark Manual of Examining Procedure - TMEP
USPTO Official Gazette - Trademarks: recent five weeks
USPTO FAQ about how to use TESS to search for Native American Tribal Insignia
Guide to the International Registration of Marks under the Madrid Agreement and the Madrid Protocol (Downloadable PDF)
International (Nice) Classification of Goods and Services
International Classification of the Figurative Elements of Marks - Vienna Classification
European Union Intellectual Property Office - EUIPO - Trade Marks and Designs (formerly Office for Harmonization in the Internal Market - OHIM)
Official Journal of the EUIPO (formerly OHIM)

National and International Trademark Offices

United States Patent and Trademark Office
State Trademark Offices
Canadian Trademark Services
Industrial Property Digital Library - Japan
Community Trade Mark System Services - European Union
WIPO Trademark Gateway