U.S. Patent and Trademark Office for the words OK BOOMER. The application covers the following services in Class 41:
Entertainment services, namely, an on-going television series featuring reality competition, comedy, and game shows; providing on-line information in the field of television and video entertainment featuring reality competition, comedy, and game shows via the Internet; entertainment services in the nature of non-downloadable videos and images featuring television shows about reality competition, comedy, and game shows transmitted via the Internet and wireless communication networksFox filed the application on an intent-to-use basis, suggesting this trademark isn't currently being used with the listed services, but the network has a bona fide intention to use this mark in the near future. 15 USC 1051(b); TMEP 806.01(b). Before the mark can register, Fox will need to start rendering the listed services, including a reality TV show, under the OK BOOMER mark.
The "OK BOOMER" phrase went viral on social media recently and is commonly used by younger generations as a jab to the baby boomer generation. Now, it appears, Fox may be attempting to capitalize on that popularity (rightfully or wrongfully) by developing a related reality television show, along with related online content.
Fox Media LLC appears to be a holding company for the network's trademarks. That entity currently owns 571 active trademark applications or registrations with the USPTO, including many for Fox programs like THE MASKED SINGER and FOX & FRIENDS.