| OXYGENEO 2095428 · TMA1192569 | Pollogen Ltd. | 3 Cosmetics | Registered | 2023 |
| OXYGENEO 1866423 · TMA1032944 | Pollogen Ltd. | 10 Medical | Registered | 2019 |
| OXYGÈNE 1255882 · TMA664373 | Beneva Inc. | 36 Finance | Registered | 2006 |
| OXYGENE 0642637 · TMA380865 | Oxyfresh Worldwide, Inc. | 1 Chemicals | Registered | 1991 |
| OXYGENOS 2275659 · design | OnePlus Technology (Shenzhen) Co. Ltd. | 9 Electronics | Pending | 2023 |
| OXYGENICS 2054124 · TMA1168194 | ETL, LLC | 11 Lighting | Registered | 2023 |
| OXYGENI 2019186 · TMA1264978 | Electrochemical Oxygen Concepts, Inc. | 10 Medical | Registered | 2024 |
| OXYGENI 2019185 · TMA1264977 | Electrochemical Oxygen Concepts, Inc. | 41 Education | Registered | 2024 |
| OXYGEN 8 1979169 · TMA1226617 | Owner not shown | 44 Medical | Registered | 2024 |
| OXYGENI 1788892 · TMA1063754 · design | Electrochemical Oxygen Concepts, Inc. | 44 Medical | Registered | 2019 |
| OXYGENI 1788891 · TMA1063756 · design | Electrochemical Oxygen Concepts, Inc. | 41 Education | Registered | 2019 |
| OXYGENI 1788890 · TMA1063753 · design | Electrochemical Oxygen Concepts, Inc. | 10 Medical | Registered | 2019 |
| OXYGENICS 1727150 · TMA959375 | Oxygen Biological Inc. | 3 Cosmetics5 Pharmaceuticals21 Housewares+2 | Registered | 2017 |
| OXYGEN 1600269 · TMA877201 | Owner not shown | 14 Jewellery | Registered | 2014 |
| OXYGEN 1483514 · TMA851716 | 1817132 Ontario Inc. and 1817133 Ontario Inc. a joint venture | 19 Building36 Finance37 Construction | Registered | 2013 |
| OXYGEN 1124373 · TMA642756 | Formula Brands Inc. | 9 Electronics10 Medical11 Lighting | Registered | 2005 |
| OXYGEN 1063706 · TMA576501 | an individual | 35 Advertising38 Telecommunications40 Treatment+1 | Registered | 2003 |
| OXYGEN 1050964 · TMA559417 | Outside Interactive, Inc. | 9 Electronics | Registered | 2002 |
| OXYGON 0879746 · TMA538569 | OXYGON TECHNOLOGIES INC. | 3 Cosmetics5 Pharmaceuticals | Registered | 2000 |
| OXYGEN 0807863 · TMA477896 | ATOMIC AUSTRIA GMBH | 28 Toys | Registered | 1997 |
| OXYGEN 0805053 · TMA486452 | INDUSTRIES RAD INC. | 12 Vehicles | Registered | 1997 |
| OXYGEN 0708917 · TMA449513 | ATOMIC AUSTRIA GMBH | 9 Electronics18 Leather25 Clothing+1 | Registered | 1995 |
| OxygenX 2144883 | Owner not shown | 9 Electronics11 Lighting31 Fresh+3 | Pending | 2021 |
| OXYGEN8 2038541 | Oxygen8 Solutions Inc. a British Columbia corporation | 11 Lighting | Pending | 2020 |
| O2XYGENATION 1703264 · TMA1040860 | O2XYGENATION INC. | 16 Paper35 Advertising41 Education | Registered | 2019 |