| OpticEye 1984602 · TMA1117443 | an individual | 7 Machines9 Electronics | Registered | 2022 |
| OPTICLUDE 0363794 · TMA204763 | 3M Company (a Delaware corporation) | 5 Pharmaceuticals | Registered | 1975 |
| OPTICARE 2147833 · TMA1237017 | Owner not shown | 10 Medical20 Furniture | Registered | 2024 |
| OPTICELL 2105312 · TMA1190725 | Medline Industries, LP | 5 Pharmaceuticals | Registered | 2023 |
| OPTICORE 2057125 · TMA1259175 | Arcanum Alloys, Inc. | 6 Metal | Registered | 2024 |
| OPTICALE 2007604 · TMA1146553 · design | an individual | 9 Electronics16 Paper41 Education+1 | Registered | 2022 |
| OPTICEL 1950661 · TMA1209229 | Summit Innovation Labs, LLC | 5 Pharmaceuticals | Registered | 2023 |
| OPTICIZE 1921902 · TMA1113451 | TB CLIFT LIMITED | 10 Medical35 Advertising41 Education | Registered | 2021 |
| OPTICORE 1651914 · TMA1031794 | an individual | 5 Pharmaceuticals | Registered | 2019 |
| OPTICAKE 1587321 · TMA869749 | Owner not shown | 1 Chemicals | Registered | 2014 |
| OPTICORE 1585927 · TMA904487 | Sealy Technology LLC a North Carolina limited liability company | 20 Furniture | Registered | 2015 |
| OPTICITÉ 1572071 · TMA869539 | oeilsec.ca inc. | 9 Electronics21 Housewares35 Advertising+1 | Registered | 2014 |
| OPTICARE 1570676 · TMA860186 | SOCIETE DES PRODUITS NESTLE SA | 31 Fresh | Registered | 2013 |
| OPTICID 1324210 · TMA750654 | Archroma IP GmbH | 1 Chemicals | Registered | 2009 |
| OPTICORE 1256758 · TMA682690 | Owner not shown | 16 Paper | Registered | 2007 |
| OPTICURE 0552330 · TMA323768 | AKZO NOBEL COATINGS INC. | 2 Paints | Registered | 1987 |
| OPTICITE 0532026 · TMA311831 | Transcendia, Inc. | 16 Paper | Registered | 1986 |
| OPTICLOSE 2280736 · TMA1243434 | Owner not listed | 5 Pharmaceuticals | Registered | 2024 |
| OPTICYCLE 2142738 · TMA1200395 | Graphic Packaging International, LLC | 21 Housewares | Registered | 2023 |
| OPTISENSE 1879995 · TMA1071339 | OTIS ELEVATOR COMPANY | 9 Electronics | Registered | 2020 |
| OPTISENSE 1868319 · TMA1041900 | Hayward Industries, Inc. | 7 Machines | Registered | 2019 |
| OPTIXCARE 1848718 · TMA1016030 | CLC Medica Corporation | 3 Cosmetics5 Pharmaceuticals | Registered | 2019 |
| OPTIXCARE 1722525 · TMA958735 · design | CLC Medica Corporation | 3 Cosmetics5 Pharmaceuticals | Registered | 2016 |
| OPTISENSE 1585921 · TMA904485 | Sealy Technology LLC a North Carolina limited liability company | 17 Rubber20 Furniture | Registered | 2015 |
| OPTICLEAN 1438249 · TMA767828 | BISSELL Inc. | 7 Machines | Registered | 2010 |