| Outhis 2302688 | Shenzhen Tenchao Technology Co.Ltd | 20 Furniture | Pending | 2023 |
| OUTHOUSE 1844405 · TMA1011271 | an individual | 5 Pharmaceuticals | Registered | 2018 |
| Outus 2226069 · TMA1251285 | SHENZHEN JUANJING NETWORK TECHNOLOGY CO., LTD. | 16 Paper | Registered | 2024 |
| OUTASK 2203845 · TMA1239969 · design | Shenzhen Habitat Technology Co., Ltd. | 11 Lighting | Registered | 2024 |
| OATIS 1821971 · TMA1019197 | an individual | 29 Meat30 Coffee | Registered | 2019 |
| OTIS 1811667 · TMA1017718 · design | Otis Products, Inc. dba Otis Technology, Inc. | 1 Chemicals4 Oils8 Hand+4 | Registered | 2019 |
| OTIS 1630126 · TMA939071 | TForce Holdings Inc. | 35 Advertising | Registered | 2016 |
| OTISS 1573169 · TMA857730 | TRANSOFT SOLUTIONS INC. | 39 Transport42 Science | Registered | 2013 |
| OTIS 1184152 · TMA670295 | Aspire Bakeries LLC | 30 Coffee | Registered | 2006 |
| OUTS 1064320 · TMA562970 | TEND SKIN INTERNATIONAL, INC. a legal entity | 3 Cosmetics | Registered | 2002 |
| OTIS 0991691 · NFLD1691 · design | OTIS ELEVATOR COMPANY | 7 Machines9 Electronics16 Paper+1 | Registered | 1929 |
| OTIS 0991379 · NFLD1379 | OTIS ELEVATOR COMPANY | 7 Machines9 Electronics13 Firearms+2 | Registered | 1926 |
| OATWICH 0736930 · TMA433218 | Boulangerie Vachon Inc. / Vachon Bakery Inc. | 30 Coffee | Registered | 1994 |
| OTIS 0573185 · TMA345741 | OTIS ELEVATOR COMPANY (A NEW JERSEY CORPORATION) | 37 Construction | Registered | 1988 |
| OTIS 0230156 · TMA108234 | Halliburton Energy Services, Inc. (a Delaware Corporation) | 1 Chemicals2 Paints3 Cosmetics+5 | Registered | 1957 |
| OTIS 0230155 · TMA108233 · design | Halliburton Energy Services, Inc. (a Delaware Corporation) | 1 Chemicals2 Paints3 Cosmetics+5 | Registered | 1957 |
| OTIS 0159840 · TMDA56612 · design | OTIS ELEVATOR COMPANY (A NEW JERSEY CORPORATION) | 3 Cosmetics7 Machines9 Electronics+1 | Registered | 1933 |
| OTIS 0159839 · TMDA57039 | OTIS ELEVATOR COMPANY (A NEW JERSEY CORPORATION) | 3 Cosmetics7 Machines9 Electronics+1 | Registered | 1933 |
| OUTES 2295797 · design | Owner not listed | 11 Lighting | Pending | 2023 |
| OUTIGO 2266222 · design | METOTRADE | 7 Machines | Pending | 2023 |
| OUTES 2262518 · design | ZHEJIANG ZHONGGUANG ELECTRICAL CO. LTD. | 11 Lighting | Pending | 2023 |
| OETZI 2226399 · TMA1252601 · design | BEIJING JIURICHENG TECHNOLOGY AND TRADE CO. LTD. | 25 Clothing | Registered | 2024 |
| OTSO 2221581 · TMA1239045 | OTSO CYCLES, LLC | 12 Vehicles | Registered | 2024 |
| Oddekey 2217670 · TMA1245520 | an individual | 21 Housewares | Registered | 2024 |
| Odokee 2177243 · TMA1227243 | Shenzhen Yixunjie Electronic Commerce Co. Ltd. | 14 Jewellery | Registered | 2024 |