| OFID 0972189 | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2006 |
| OPTIO 2227628 · TMA1255047 | BASF Agricultural Solutions Seed US LLC | 1 Chemicals31 Fresh | Registered | 2024 |
| OPTI 2215682 · TMA1233972 | IDEXX LABORATORIES, INC. | 1 Chemicals5 Pharmaceuticals | Registered | 2024 |
| OBAT 2165546 · TMA1231213 | Owner not shown | 9 Electronics35 Advertising42 Science | Registered | 2024 |
| OOHPOD!! 2122206 · TMA1217089 · design | Oohpod Limited | 9 Electronics35 Advertising39 Transport | Registered | 2024 |
| OOHPOD 2113126 · TMA1217035 | Oohpod Limited | 9 Electronics35 Advertising39 Transport | Registered | 2024 |
| OPTO 2111588 · TMA1159462 | Berkeley Lights, Inc. | 1 Chemicals | Registered | 2023 |
| OPADEI 2095918 · TMA1172615 | Xiamihezi(Xiamen) culture media Co. Ltd. | 21 Housewares | Registered | 2023 |
| OVATIO 2084056 · TMA1215986 | an individual | 4 Oils7 Machines17 Rubber | Registered | 2023 |
| OVATIO 2084054 · TMA1215985 · design | an individual | 4 Oils7 Machines17 Rubber | Registered | 2023 |
| OptiO2 2057680 · TMA1187107 | Fisher & Paykel Healthcare Limited | 10 Medical | Registered | 2023 |
| OBT 2011733 · TMA1134853 | Alexza Pharmaceuticals, Inc. | 5 Pharmaceuticals10 Medical | Registered | 2022 |
| OphtAI 1996876 · TMA1216728 | Owner not shown | 9 Electronics10 Medical42 Science+1 | Registered | 2024 |
| OPTI 1940635 · TMA1140842 | OptiRTC, Inc. | 36 Finance42 Science | Registered | 2022 |
| OPTIA 1938677 · TMA1125418 | Infastech Intellectual Properties Pte. Ltd. | 6 Metal | Registered | 2022 |
| OVID 1880387 · TMA1074251 | Metamorphosis Wines, LLC | 33 Wine | Registered | 2020 |
| OPTI 1880249 · TMA1072552 | an individual | 25 Clothing28 Toys | Registered | 2020 |
| OVIDIO 1877257 · TMA1073006 | an individual | 11 Lighting | Registered | 2020 |
| OVADIA 1849893 · TMA1030095 · design | JACQUES MORET INC. | 25 Clothing | Registered | 2019 |
| OBTi 1848851 · TMA1032318 | an individual | 9 Electronics42 Science | Registered | 2019 |
| OVID 1847171 · TMA1012282 | OVID LIGHTING INNOVATIONS INC. | 11 Lighting | Registered | 2019 |
| OPT+ 1784179 · TMA971719 | CASH MONEY CHEQUE CASHING INC. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2017 |
| OPT + 1784178 · TMA983186 · design | CASH MONEY CHEQUE CASHING INC. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2017 |
| OVD 1780397 · TMA1014465 | AZNETWORK | 9 Electronics38 Telecommunications42 Science | Registered | 2019 |
| OVID 1759565 · TMA1026767 | Ovid Therapeutics, Inc. | 42 Science | Registered | 2019 |