| CRYOFREEZE 1479632 · TMA792596 | CALIFORNIA INNOVATIONS INC. | 21 Housewares | Registered | 2011 |
| CRYOFROG 1811189 · TMA1063781 | Cryofrog Inc. | 9 Electronics28 Toys41 Education+1 | Registered | 2019 |
| CAREFRESH 1468907 · TMA823814 | an individual | 18 Leather31 Fresh | Registered | 2012 |
| CERROPRESS 1986353 | Cerro Flow Products LLC | 6 Metal | Pending | 2019 |
| CRYOFORM 1839271 · TMA1045665 | AtriCure, Inc. | 10 Medical | Registered | 2019 |
| CRYOFIRM 2372148 | Elemis USA, Inc. | 44 Medical | Pending | 2024 |
| CRYOPRIDE 2306669 · design | CSIC Pride (Nanjing) Cryogenic Technology Co. Ltd. | 7 Machines11 Lighting | Pending | 2023 |
| CAREVERSE 2259148 · TMA1281083 | Solis Healthcare Solutions Inc. | 9 Electronics42 Science | Registered | 2025 |
| Carvero 2238631 · TMA1254202 | SUMITOMO CHEMICAL COMPANY LIMITED | 1 Chemicals5 Pharmaceuticals | Registered | 2024 |
| CAREFOR 2228718 · TMA1271230 | Weichen Innovation Technology (Shenzhen) Co. Ltd. | 10 Medical | Registered | 2024 |
| Coarbor 2194657 · TMA1235156 | Hangzhou Xinyi Outdoor Products Co. Ltd. | 22 Ropes | Registered | 2024 |
| Carvoriy 2178442 · TMA1228211 | Huizhou Zhongxingwang Technology Co. Ltd. | 21 Housewares | Registered | 2024 |
| CORPORALITY 2162580 · TMA1275741 · design | TECH CONSULTANTS AUSTRALIA PTY LTD | 35 Advertising | Registered | 2024 |
| CARFAR 2161298 · TMA1212237 · design | an individual | 9 Electronics | Registered | 2023 |
| CARBRAVO 2160361 · TMA1210091 · design | General Motors LLC | 35 Advertising | Registered | 2023 |
| CARBRAVO 2160342 · TMA1194002 | General Motors LLC | 35 Advertising | Registered | 2023 |
| CAREFREE 2134757 · TMA1212061 | Edgewell Personal Care Brands, LLC | 3 Cosmetics5 Pharmaceuticals10 Medical | Registered | 2023 |
| CORAFRITZ 2068230 · TMA1174563 | Quanzhou Fengze District Lanxi Clothing Co. Ltd. | 25 Clothing | Registered | 2023 |
| CRAYPORT 2060874 · TMA1131272 | Hewlett Packard Enterprise Development LP | 42 Science | Registered | 2022 |
| COREPRENEUR 2055892 · TMA1277052 | an individual | 9 Electronics16 Paper35 Advertising+3 | Registered | 2024 |
| Carfarm 2043056 · TMA1139758 | Shenzhen Lepower Electronic Co., Ltd. | 7 Machines12 Vehicles | Registered | 2022 |
| COREBRIDGE 2033300 · TMA1097343 · design | Corebridge, Inc. | 42 Science | Registered | 2021 |
| Cerprise 2021000 · TMA1132763 | Shenzhen Eryone Technology Co.Ltd | 17 Rubber | Registered | 2022 |
| Cerviron 2017249 · TMA1118602 | an individual | 5 Pharmaceuticals | Registered | 2022 |
| Cerberis 2011694 · TMA1147714 | ID Quantique SA | 9 Electronics42 Science | Registered | 2022 |