| Openfit 2069724 · TMA1198595 | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2023 |
| OPENFIT 1944149 · TMA1211535 | OPENFIT, LLC | 41 Education | Registered | 2023 |
| OPENFIELD 2267487 | Owner not listed | 9 Electronics16 Paper35 Advertising+2 | Pending | 2023 |
| openfast 2132250 · TMA1246183 | SHOKZ HOLDING LIMITED | 9 Electronics | Registered | 2024 |
| OPENBIKE 2056480 · TMA1198551 | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2023 |
| OPENVINO 1925579 · TMA1111163 · design | INTEL CORPORATION | 9 Electronics | Registered | 2021 |
| OPENVINO 1925578 · TMA1111162 | INTEL CORPORATION | 9 Electronics | Registered | 2021 |
| OPENFLEX 1913540 · TMA1127929 | Western Digital Technologies, Inc. | 9 Electronics37 Construction42 Science | Registered | 2022 |
| OpenView 1589091 · TMA883545 | an individual | 6 Metal19 Building | Registered | 2014 |
| OPENFLOW 1551485 · TMA879848 | Open Networking Foundation, an Oregon non-profit corporation | 9 Electronics42 Science | Registered | 2014 |
| OPENFOLK 1540462 · TMA885736 | an individual | 6 Metal9 Electronics14 Jewellery+7 | Registered | 2014 |
| OPENFOAM 1410703 · TMA761690 | OpenCFD Limited | 9 Electronics41 Education42 Science | Registered | 2010 |
| OPENVIEW 1219117 · TMA768542 | an individual | 9 Electronics16 Paper | Registered | 2010 |
| OPENIPO 1056393 · TMA562628 | W.R. Hambrecht + Co., Inc. | 9 Electronics16 Paper35 Advertising+5 | Registered | 2002 |
| OpenFlex 2129248 | BEE2LINK | 9 Electronics35 Advertising41 Education+1 | Pending | 2021 |
| OPENFLEX 2120670 · design | BEE2LINK | 9 Electronics35 Advertising41 Education+1 | Pending | 2021 |
| OPENFORM 2038250 | OpenRoad Auto Group Limited | 36 Finance37 Construction | Pending | 2020 |
| OPENVISION 1671831 · TMA914149 | QSA Global Inc. | 9 Electronics | Registered | 2015 |
| OPENOFFICE 1382849 · TMA901778 | The Apache Software Foundation | 9 Electronics | Registered | 2015 |
| OPENFORCE 1871907 · TMA1074974 | Contractor Management Services, LLC | 35 Advertising42 Science | Registered | 2020 |
| OPEN2VIEW 1308856 · TMA704655 | O 2 V IP Trustees Limited | 35 Advertising36 Finance37 Construction+1 | Registered | 2008 |
| OPENFRONT 2086802 | Lemon Inc. | 9 Electronics16 Paper35 Advertising+4 | Pending | 2021 |
| OPENBISHENG 2152802 · TMA1207572 | HUAWEI TECHNOLOGIES CO., LTD. | 9 Electronics42 Science | Registered | 2023 |
| openBOS 2123731 · TMA1181867 | Busch-Jaeger Elektro GmbH | 9 Electronics | Registered | 2023 |
| Openmove 2059255 · TMA1198561 | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2023 |