| OrgVue 1869547 · TMA1084029 | CONCENTRA CONSULTING LIMITED | 9 Electronics35 Advertising42 Science | Registered | 2020 |
| ORGPLAN 1365935 · TMA781575 | Aquire Solutions, Inc. | 9 Electronics | Registered | 2010 |
| ORASPENSE 1679785 · TMA1028511 | DENTSPLY SIRONA Inc. | 10 Medical | Registered | 2019 |
| ORCAPOD 2251738 · TMA1268974 | Owner not listed | 10 Medical | Registered | 2024 |
| ORISUPP 2211797 · TMA1243017 · design | LKK HEALTH PRODUCTS GROUP LIMITED | 5 Pharmaceuticals30 Coffee32 Beer | Registered | 2024 |
| OURJOB 2195483 · TMA1237259 · design | Shenzhen Yongchangda Electronics Co., Ltd. | 9 Electronics | Registered | 2024 |
| ORGOVYX 2141357 · TMA1261055 · design | Myovant Sciences GmbH | 5 Pharmaceuticals44 Medical | Registered | 2024 |
| ORCAUBOAT 2132465 · TMA1193841 · design | Shaanxi ORCA Electronic Technology Co.Ltd | 12 Vehicles | Registered | 2023 |
| ORGOVYX 2053690 · TMA1178623 | Sumitomo Pharma Switzerland GmbH | 5 Pharmaceuticals | Registered | 2023 |
| OurSupplyRoom 2053111 · TMA1151890 | an individual | 25 Clothing | Registered | 2022 |
| orgabon 2041391 · TMA1121774 | New Kids On Co. Ltd | 3 Cosmetics | Registered | 2022 |
| orrsheffa 1990034 · TMA1128919 | AD-N-ART INC | 21 Housewares | Registered | 2022 |
| OREXPANT 1878127 · TMA1061448 | KARYOPHARM THERAPEUTICS INC. | 5 Pharmaceuticals | Registered | 2019 |
| OREXPLORE 1853463 · TMA1023581 | an individual | 9 Electronics42 Science | Registered | 2019 |
| ORISVIO 1823835 · TMA1076569 | Actelion Pharmaceuticals Ltd. | 5 Pharmaceuticals | Registered | 2020 |
| ORSBiotic 1752328 · TMA965738 | Medlab IP Pty Ltd | 5 Pharmaceuticals29 Meat | Registered | 2017 |
| ORGAPOWER 1710427 · TMA1029414 | Renewi PLC | 1 Chemicals4 Oils40 Treatment | Registered | 2019 |
| ORKEPA 1681109 · TMA1068883 | BRISTOL-MYERS SQUIBB COMPANY (A DELAWARE CORPORATION) | 5 Pharmaceuticals | Registered | 2020 |
| ORGABEE 1595336 · TMA914616 | ALPAYA DOGAL VE KOZMETIK URUNLER SAN VE TIC LTD | 3 Cosmetics5 Pharmaceuticals | Registered | 2015 |
| OREGAPET 1530834 · TMA861220 | True Leaf Pet Inc. | 3 Cosmetics5 Pharmaceuticals31 Fresh | Registered | 2013 |
| ORAZEPHIN 1503459 · TMA821721 | ORX PHARMACEUTICAL CORPORATION | 5 Pharmaceuticals | Registered | 2012 |
| ORESKABAND 1338316 · TMA798030 · design | Sony Music Associated Records Inc. | 7 Machines9 Electronics16 Paper+8 | Registered | 2011 |
| ORACOVER 1217368 · TMA649649 | an individual | 16 Paper17 Rubber | Registered | 2005 |
| ORASCOPTIC 0823162 · TMA508303 | KERR CORPORATION a Delaware corporation | 9 Electronics10 Medical20 Furniture | Registered | 1999 |
| ORAHESIVE 0655006 · TMA400432 | ConvaTec Inc. | 5 Pharmaceuticals | Registered | 1992 |