How to Check if a Trademark is Already Registered?Check if a Trademark is Registered
You can search all registered trademarks free of charge on the U.S. Patent and Trademark Office (USPTO) website using TESS (Trademark Electronic Search System). If your mark includes a design element, you will have to search it by using a design code. To locate the proper design code(s), please consult the Design Search Code Manual, which is here. (link is external)
You may also conduct a trademark search by visiting the Trademark Public Search Library, between 8 a.m. and 8 p.m. (research assistance is offered between the hours of 8 a.m. and 5 p.m.) at Public Search Facility - Madison East, 1st Floor; 600 Dulany St.; Alexandria, VA 22313. Use of the Public Search Library is free to the public. You can also conduct a search at a Patent and Trademark Depository Library near you.
Private trademark search firms will conduct searches for a fee. The USPTO cannot aid in the selection of a search firm. Search firms are often listed in the yellow page section of telephone directories under the heading "Trademark Search Services" or "Patent and Trademark Search Services."