| OPENVINO 1925579 · TMA1111163 · design | INTEL CORPORATION | 9 Electronics | Registered | 2021 |
| OPENVINO 1925578 · TMA1111162 | INTEL CORPORATION | 9 Electronics | Registered | 2021 |
| OPENBISHENG 2152802 · TMA1207572 | HUAWEI TECHNOLOGIES CO., LTD. | 9 Electronics42 Science | Registered | 2023 |
| OPENFIGI 1743296 · TMA994707 | an individual | 9 Electronics16 Paper35 Advertising+1 | Registered | 2018 |
| OpenView 1589091 · TMA883545 | an individual | 6 Metal19 Building | Registered | 2014 |
| OPENVIEW 1219117 · TMA768542 | an individual | 9 Electronics16 Paper | Registered | 2010 |
| OPENVMS 1178741 · TMA628270 | Hewlett Packard Enterprise Development LP | 9 Electronics | Registered | 2004 |
| OPENIPO 1056393 · TMA562628 | W.R. Hambrecht + Co., Inc. | 9 Electronics16 Paper35 Advertising+5 | Registered | 2002 |
| OPENVPN 2248948 | OPENVPN, INC. | 9 Electronics | Pending | 2023 |
| openfast 2132250 · TMA1246183 | SHOKZ HOLDING LIMITED | 9 Electronics | Registered | 2024 |
| openBOS 2123731 · TMA1181867 | Busch-Jaeger Elektro GmbH | 9 Electronics | Registered | 2023 |
| Openfit 2069724 · TMA1198595 | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2023 |
| Openmove 2059255 · TMA1198561 | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2023 |
| OPENBIKE 2056480 · TMA1198551 | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2023 |
| OPENBLUE 2041374 · TMA1249415 | Tyco Fire & Security GmbH | 9 Electronics35 Advertising37 Construction+1 | Registered | 2024 |
| OPENFIT 1944149 · TMA1211535 | OPENFIT, LLC | 41 Education | Registered | 2023 |
| OPENFLEX 1913540 · TMA1127929 | Western Digital Technologies, Inc. | 9 Electronics37 Construction42 Science | Registered | 2022 |
| OPENBET 1904636 · TMA1212653 | OpenBet Limited | 9 Electronics38 Telecommunications41 Education | Registered | 2023 |
| OPENFORCE 1871907 · TMA1074974 | Contractor Management Services, LLC | 35 Advertising42 Science | Registered | 2020 |
| OPENBOOK 1821106 · TMA1095735 | GTY SOFTWARE INC. | 9 Electronics42 Science | Registered | 2021 |
| OPENPHA 1814056 · TMA992779 | ACM Risk Sciences & Development Inc. | 9 Electronics42 Science | Registered | 2018 |
| OPNUVY 1797932 · TMA1051325 | BRISTOL-MYERS SQUIBB COMPANY (A DELAWARE CORPORATION) | 5 Pharmaceuticals | Registered | 2019 |
| OpenPlex 1760119 · TMA1013243 | an individual | 9 Electronics | Registered | 2019 |
| OpenPBX 1757888 · TMA969165 | an individual | 38 Telecommunications | Registered | 2017 |
| OPNFV 1716402 · TMA1009011 · design | The Linux Foundation | 9 Electronics35 Advertising42 Science | Registered | 2018 |