| CORSTEM 1835784 · TMA1019075 · design | Circle Cardiovascular Imaging Inc. | 42 Science | Registered | 2019 |
| CORSTEM 1835713 · TMA1018289 | Circle Cardiovascular Imaging Inc. | 42 Science | Registered | 2019 |
| CORSTOP 1732669 · TMA998658 | Avent, Inc. | 10 Medical35 Advertising40 Treatment+1 | Registered | 2018 |
| CORSET 1477566 · TMA789075 · design | Owner not shown | 4 Oils34 Tobacco | Registered | 2011 |
| CARSTAR 0742984 · TMA435431 | Carstar Franchisor SPV LLC | 37 Construction | Registered | 1994 |
| CORESTAFF 1540356 · TMA929216 | Corporate Services Group Holdings, Inc. | 35 Advertising | Registered | 2016 |
| CORUSCATE 2340736 | Shenzhen Lifa Sibang Trading Co. Ltd | 3 Cosmetics | Pending | 2024 |
| CORESTOR 1422037 · TMA777051 | SPACESAVER CORPORATION A WISCONSIN CORPORATION | 20 Furniture | Registered | 2010 |
| COORSTEK 1249036 · TMA688302 | CoorsTek, Inc. | 1 Chemicals3 Cosmetics7 Machines+9 | Registered | 2007 |
| CHRISTAR 1031810 · TMA568851 · design | Christar International, Inc. | 45 Legal | Registered | 2002 |
| CHRISTAR 1031808 · TMA568849 | Christar International, Inc. | 45 Legal | Registered | 2002 |
| CORISTEX 0514881 · TMA296679 | RATIOPHARM GMBH | 5 Pharmaceuticals | Registered | 1984 |
| CURESTAR 2244263 | Owner not listed | 1 Chemicals | Pending | 2023 |
| COREXTRACT 2245363 | L'OREAL | 1 Chemicals5 Pharmaceuticals | Pending | 2023 |
| CRYSTAR 2129935 · TMA1210876 | FURYU CORPORATION | 9 Electronics | Registered | 2023 |
| CRYSTAL 2030866 · TMA1129942 | SodaStream (Switzerland) GmbH | 6 Metal7 Machines21 Housewares | Registered | 2022 |
| CRYSTAL 1964346 · TMA1144973 | Bitfury Group Limited | 9 Electronics42 Science | Registered | 2022 |
| CRST 1935106 · TMA1136736 | Board of Canadian Registered Safety Professionals | 45 Legal | Registered | 2022 |
| CRISTAL 1891791 · TMA1074949 · design | Owner not shown | 10 Medical | Registered | 2020 |
| CARYSTA 1836411 · TMA1069276 · design | Zoetis Services LLC | 10 Medical | Registered | 2020 |
| CARYSTA 1832610 · TMA1066573 | Zoetis Services LLC | 10 Medical | Registered | 2019 |
| CARESTA 1796080 · TMA1051734 | Aquestive Therapeutics, Inc. a Delaware corporation | 5 Pharmaceuticals | Registered | 2019 |
| COROCUT 1787981 · TMA1045445 | an individual | 7 Machines9 Electronics | Registered | 2019 |
| CRYSTAR 1784217 · TMA986891 | Saint-Gobain Ceramics & Plastics, Inc. | 7 Machines11 Lighting | Registered | 2017 |
| CRYSTAL 1783685 · TMA976916 | Clotures Frontenac Inc. | 6 Metal19 Building | Registered | 2017 |