U.S. federal trademark · Serial No. 98922612
I'm currently employed as a therapist at an addiction treatment center. The phrase "YEAH YOU DO!" is used by me when I confirm the days of sobriety from my clientele. The idea to trademark the phrase was suggested as it's an encouraging phrase. The idea to make hoodies, tshirts, or so on is the direction I'm going with this.
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.