A trademark is a form of intellectual property that identifies and differentiates the source of goods or services, acting as a legal safeguard against confusion and unauthorized use. Authors such as James Boyle emphasize its role in conferring limited exclusion rights, similar to those of patents and copyrights, while Arthur P. Greeley highlights its close connection to commerce and the importance of transferring it alongside business operations.
Judicial decisions, including those from the Supreme Court of Korea and U.S. courts, stress its function in protecting consumer confidence by preventing misleading claims about origin. These viewpoints collectively demonstrate trademarks as both legal protections and commercial assets, balancing proprietary interests with the public's need for accurate market information.