| OWIT 2247314 · design | Zhuhai Owit Technology Co. LTD. | 7 Machines9 Electronics | Pending | 2022 |
| OT 2167815 · TMA1277370 · design | OMNITRANS INC. | 16 Paper35 Advertising | Registered | 2024 |
| O8T 2077417 · TMA1204893 | Omniscient Neurotechnology Pty Limited | 9 Electronics42 Science | Registered | 2023 |
| OT 2067439 · TMA1268204 · design | Owner not shown | 16 Paper21 Housewares25 Clothing+2 | Registered | 2024 |
| OT 1848974 · TMA1059003 · design | Kimberly-Clark Worldwide, Inc. | 5 Pharmaceuticals | Registered | 2019 |
| OUT 1819746 · TMA1040468 | IOIP Holdings, LLC | 3 Cosmetics | Registered | 2019 |
| OT 1792922 · TMA987599 · design | Guangzhou Daming United Rubber Products Ltd. | 10 Medical | Registered | 2018 |
| OUT!! 1760532 · TMA978484 · design | Manna Pro Products, LLC | 1 Chemicals3 Cosmetics5 Pharmaceuticals+4 | Registered | 2017 |
| OT 1708122 · TMA986912 · design | Mitsubishi Chemical Corporation | 28 Toys | Registered | 2017 |
| OHT 1679786 · TMA928266 · design | University of New Hampshire | 24 Textiles25 Clothing | Registered | 2016 |
| OUT 1658002 · TMA988155 | IOIP Holdings, LLC (Indiana Limited Liability Company) | 3 Cosmetics | Registered | 2018 |
| OUT 1629404 · TMA1024577 | IOIP Holdings, LLC (Limited Liability Company Indiana) | 1 Chemicals3 Cosmetics | Registered | 2019 |
| OUT!! 1586410 · TMA868327 | Manna Pro Products, LLC | 1 Chemicals3 Cosmetics5 Pharmaceuticals+5 | Registered | 2014 |
| OUT 1465988 · TMA795148 | Here Publishing Inc. | 16 Paper | Registered | 2011 |
| OTT 1403846 · TMA746885 | D. Jenner OTT Legal Franchise Corp. | 45 Legal | Registered | 2009 |
| OET 0820549 · TMA479373 | Owner not shown | 6 Metal | Registered | 1997 |
| OT 0658278 · TMA387142 | RELIGIOUS TECHNOLOGY CENTER | 45 Legal | Registered | 1991 |
| OT 0636465 · TMA387737 · design | O.M. TREUTLER HOLDINGS LTD. | 14 Jewellery | Registered | 1991 |
| OT 2348616 · design | Open Text SA ULC | 9 Electronics16 Paper35 Advertising+4 | Pending | 2024 |
| OT 2306687 · design | WK Travel Inc. | 35 Advertising39 Transport43 Restaurants | Pending | 2023 |
| OET 2275962 | Cambridge Boxhill Language Assessment Pty Ltd. | 9 Electronics16 Paper35 Advertising+2 | Pending | 2023 |
| OAT 2207956 | Star Frameworks Labs Pte. Ltd. | 36 Finance42 Science | Pending | 2022 |
| OTT 2167702 | OTT FINANCIAL GROUP CORPORATION | 9 Electronics35 Advertising36 Finance+2 | Pending | 2022 |
| OOt 2165936 | an individual | 9 Electronics42 Science45 Legal | Pending | 2022 |
| OT 2159137 · design | LifeScan IP Holdings, LLC | 1 Chemicals5 Pharmaceuticals9 Electronics+3 | Pending | 2022 |