| OTURE 2037246 · TMA1269522 · design | Shenzhen Longsi Technology Co. Ltd. | 12 Vehicles | Registered | 2024 |
| OUTREE 2371550 · design | Ningbo Heyme Information Technology Co.Ltd | 10 Medical20 Furniture22 Ropes+2 | Pending | 2024 |
| Outdooree 1522639 · TMA831341 | Outdooree Industrial Ltd. | 6 Metal9 Electronics12 Vehicles+6 | Registered | 2012 |
| OTR 2262903 · TMA1220831 | JIM BEAM BRANDS CO. | 32 Beer | Registered | 2024 |
| Oterri 2232699 · TMA1256609 | Shenzhen Yong Jin Da Technology Co. Ltd. | 16 Paper | Registered | 2024 |
| OTTER 2118269 · TMA1163757 | QSM Diagnostics Inc. | 10 Medical | Registered | 2023 |
| Outera 2100062 · TMA1198705 | Yichang Seymour Trading Co.Ltd. | 11 Lighting | Registered | 2023 |
| OTR 2085001 · TMA1182649 | JIM BEAM BRANDS CO. | 33 Wine | Registered | 2023 |
| OTTR 2078995 · TMA1141444 | CareDx, Inc. | 42 Science | Registered | 2022 |
| OTIRA 2070609 · TMA1162400 | KOHLER CO. | 11 Lighting | Registered | 2023 |
| ODORA 2035522 · TMA1162142 | 9016-5176 Québec inc. | 3 Cosmetics | Registered | 2023 |
| OTTER 1962893 · TMA1270500 · design | Medical Depot, Inc. | 11 Lighting20 Furniture | Registered | 2024 |
| OTTER 1962892 · TMA1270499 | Medical Depot, Inc. | 11 Lighting20 Furniture | Registered | 2024 |
| ODREII 1892706 · TMA1104031 | an individual | 9 Electronics16 Paper25 Clothing+1 | Registered | 2021 |
| OUTDOOR 1855334 · TMA1044574 · design | WRANGLER APPAREL CORP. | 25 Clothing | Registered | 2019 |
| OTR 1781550 · TMA987949 | J. MORITA MFG. CORP. | 10 Medical | Registered | 2018 |
| OTTER 1730449 · TMA943007 | Churchill Brewing Corp. | 6 Metal9 Electronics14 Jewellery+9 | Registered | 2016 |
| OUTRE 1713689 · TMA933175 · design | Sun Taiyang Co. Ltd. dba OUTRE | 26 Sewing | Registered | 2016 |
| OUTRE 1713688 · TMA933194 | Sun Taiyang Co. Ltd. dba OUTRE | 26 Sewing | Registered | 2016 |
| OUTDRY 1597828 · TMA988692 | OutDry Technologies Corporation | 9 Electronics10 Medical11 Lighting+4 | Registered | 2018 |
| ODRA 1568509 · TMA898248 · design | PROTEOR, SA | 10 Medical | Registered | 2015 |
| OTRIA 1506957 · TMA866852 | T. MARZETTI COMPANY | 29 Meat | Registered | 2013 |
| OTR3 1435446 · TMA845622 | Owner not shown | 5 Pharmaceuticals10 Medical42 Science | Registered | 2013 |
| OTTER 1411020 · TMA795401 | De Havilland Aircraft of Canada Limited | 6 Metal12 Vehicles16 Paper+2 | Registered | 2011 |
| OTR 1400226 · TMA751046 | FLEETPRIDE, INC. | 12 Vehicles | Registered | 2009 |