KnowEm USPTO Trademark Search

想知道你的品牌名称已被注册为商标？

KnowEm allows you to search the entire USPTO (United States Patent & Trademark Office) trademark database for the use of your brand, product, or business name.

Now with dynamic data updates running constantly daily to keep the trademark information more up to date than any other search system, the database has been re-engineered for 2015 performance upgrades. Now you can search the millions of records in the U.S. trademark database faster than ever!

Check for the availability of your brand and grab your name and register the trademark before someone else does!