The startup claims X Corp. ‘legally abandoned its rights’ to Twitter’s brand.

Brand owners face a changing landscape at the U.S. federal registration level as the U.S. Patent and Trademark Office (“USPTO ...

The only way to legally sell items with a trademark that you do not own is to obtain a license from the trademark owner. Trademarks are valuable property rights and are vigorously protected by their ...

A Virginia-based startup, Operation Bluebird, has filed a petition with the U.S. Patent and Trademark Office to nullify the ...

Trademark law protects against the unauthorized use of a trademark in a manner that causes a reasonable consumer to believe that the trademark owner either was the source of the goods or endorsed or ...

The CAFC issued a precedential decision today reversing the Trademark Trial and Appeal Board’s affirmance of a refusal to ...

In Canada, trademark owners may wish to use trademark symbols — i.e., ®, TM, MC and MD — to signify a claimed trademark and ward off competitors.

GM has filed a trademark application for uMan Robot Assist, a name intended for use with collaborative robots and The General ...

Teresa Earnhardt won a small victory Thursday as the U.S. Court of Appeals ruled that the U.S. Trademark Trial and Appeal Board must clarify its decision that allowed Kerry Earnhardt to use the term ...

GM has filed to trademark the term Infinite Route for a second time. The term may be used in conjunction with the automaker's ...

If you want to use someone else's trademark, you must ask the trademark owner for permission to use it. Generally, if the trademark owner gives you permission to use his trademark, you may have to pay ...

A federal appeals court has said that an individual named Steve Elster has the right to register “Trump Too Small” for T-shirts. The U.S. Patent and Trademark Office had refused registration to Mr.