Which system is used to file trademark applications and related requests?

The Trademark Electronic Application System (TEAS) is the correct system for filing trademark applications and related requests. TEAS is designed specifically for applicants to submit their trademarks electronically, making it a streamlined and effective tool for managing the application process with the USPTO. It allows users to fill out and submit applications efficiently, track their application status, and manage any related requests, such as extensions or amendments.

This system includes different forms tailored for various types of filings, ensuring that applicants can select the appropriate form based on their specific needs. The benefits of using TEAS include faster processing times, reduced chances of errors compared to paper submissions, and the convenience of accessing and managing trademark applications online.

In contrast, Trademark Status and Document Retrieval (TSDR) is primarily used for checking the status of existing trademark applications and retrieving documents related to those trademarks, rather than for filing new applications. The Trademark Assignment Notification System (TANS) focuses on recording and notifying changes in ownership of registered trademarks and is not used for initial application submissions. Lastly, the Patent Application Tracking System (PATS) is associated with patent applications, not trademark filings, and serves a different purpose within the USPTO framework. Thus, TEAS is the system designated solely for the trademark application process