| CONVOCARE 1810062 · TMA1054898 | CONVOTHERM Elektrogeräte GmbH | 1 Chemicals3 Cosmetics | Registered | 2019 |
| CONFYCARE 1824117 · TMA1000059 · design | HUANGSHAN JINFU MEDICAL EQUIPMENT CO. LTD | 10 Medical | Registered | 2018 |
| COMBOCARE 1650840 · TMA903689 | Roscoe Medical, Inc. | 10 Medical | Registered | 2015 |
| COMPCARE 1225123 · TMA676004 | Goodman Manufacturing Company, L.P. (a Texas corporation) | 36 Finance | Registered | 2006 |
| CONVOCAN 0413711 · TMA230817 | Huhtamaki, Inc. | 16 Paper | Registered | 1978 |
| Canfacture 2233501 · TMA1261390 | an individual | 35 Advertising | Registered | 2024 |
| CONVECTAIR 0510888 · TMA295449 · design | GLEN DIMPLEX AMERICAS LIMITED | 9 Electronics | Registered | 1984 |
| CONVOCOACH 2176882 | EYGN Limited | 9 Electronics35 Advertising41 Education+1 | Pending | 2022 |
| COMVAC 2084110 · TMA1143862 | GROUNDED INVESTMENTS LIMITED | 16 Paper | Registered | 2022 |
| CANNABASE 1821303 · TMA1000918 | Xenex Laboratories Inc. | 5 Pharmaceuticals | Registered | 2018 |
| CONFIGURE 1807372 · TMA1027063 | Owner not shown | 3 Cosmetics | Registered | 2019 |
| CONFIGURE 1750384 · TMA950895 | Rubbermaid Commercial Products LLC | 6 Metal20 Furniture21 Housewares | Registered | 2016 |
| CANVASRX 1684819 · TMA930062 | CanvasRx Inc. | 35 Advertising41 Education42 Science+1 | Registered | 2016 |
| CONFIGURE 1313347 · TMA844156 | FINE AGROCHEMICALS LIMITED | 1 Chemicals5 Pharmaceuticals | Registered | 2013 |
| COMPUCAGE 0881526 · TMA547662 | Compucage International Inc. | 9 Electronics20 Furniture | Registered | 2001 |
| COMBOCORE 2344758 | Owner not listed | 42 Science | Pending | 2024 |
| ComboCard 0907635 | HER MAJESTY THE QUEEN IN RIGHT OF ONTARIO AS REPRESENTED BY THE MINISTRY OF TRANSPORTATION | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1995 |
| CANNABICORE 1948563 · TMA1129413 | VITEXXA, LLC | 5 Pharmaceuticals | Registered | 2022 |
| CONFISCATED 1921571 · TMA1103158 | an individual | 33 Wine | Registered | 2021 |
| CANVASCHAMP 1793864 · TMA991077 | Prints and Signs International LLC | 16 Paper | Registered | 2018 |
| COMPACTPREP 1280762 · TMA717179 | QIAGEN GMBH | 1 Chemicals5 Pharmaceuticals9 Electronics | Registered | 2008 |
| CONFECSHURE 1061563 · TMA575109 | BALCHEM CORPORATION, a corporation of MARYLAND | 30 Coffee | Registered | 2003 |
| COMBOCURVE 2212057 · TMA1243060 | ComboCurve, Inc. | 42 Science | Registered | 2024 |
| CANVASBACK 2161360 · TMA1212248 | PLM Global Logistics, LLC | 22 Ropes | Registered | 2023 |
| CONVOCLEAN 1810061 · TMA1005821 | CONVOTHERM Elektrogeräte GmbH | 3 Cosmetics | Registered | 2018 |