| COLORCORE 2063936 · TMA1172207 | Conair LLC | 8 Hand | Registered | 2023 |
| ColorCoreHD 1866676 · TMA1104123 | BEAULIEU CANADA LTD. / BEAULIEU CANADA LTEE | 27 Carpets | Registered | 2021 |
| COLORCUPS 1605101 · TMA900342 | WILTON INDUSTRIES, INC. | 16 Paper | Registered | 2015 |
| COLORCONSTRUCT 1554304 · TMA887841 | D'Cinque Hair Science, LLC (a Delaware corporation) | 3 Cosmetics | Registered | 2014 |
| COLORCORE 0493265 · TMA319564 | The Diller Corporation | 6 Metal17 Rubber19 Building+1 | Registered | 1986 |
| COLORCHIEF 2370791 | Shenzhen Yiyun Industrial Co. Ltd. | 16 Paper | Pending | 2024 |
| COLORCOTE 2048304 | CORNELLCOOKSON, LLC | 6 Metal | Pending | 2020 |
| Clirass 2303374 · TMA1266100 | Owner not listed | 11 Lighting | Registered | 2024 |
| CLARUS 2282684 · TMA1279639 | KOHLER CO. | 11 Lighting | Registered | 2024 |
| COLORROSE 2257220 · TMA1274796 · design | Zhejiang Cheerflor Cosmetics Co. Ltd. | 3 Cosmetics | Registered | 2024 |
| ClarkeHébert 2237505 · TMA1268499 | Owner not listed | 11 Lighting | Registered | 2024 |
| colorself 2219325 · TMA1249787 | Owner not shown | 24 Textiles25 Clothing27 Carpets | Registered | 2024 |
| COLORSCAPES 2207543 · TMA1246449 | Wangs Alliance Corporation DBA WAC Lighting | 11 Lighting | Registered | 2024 |
| COLORSCAPING 2207542 · TMA1249149 | Wangs Alliance Corporation DBA WAC Lighting | 11 Lighting | Registered | 2024 |
| CLEARCHOICE 2194091 · TMA1220014 | ClearChoice Holdings LLC | 44 Medical | Registered | 2024 |
| CLEARCHOICE 2194087 · TMA1220012 · design | ClearChoice Holdings LLC | 44 Medical | Registered | 2024 |
| CLEARYX 2194000 · TMA1219997 · design | Cleary Gottlieb Steen & Hamilton LLP | 9 Electronics42 Science45 Legal | Registered | 2024 |
| CLERKY 2192574 · TMA1266945 | Clerky, Inc. | 42 Science | Registered | 2024 |
| COLORSUB 2191966 · TMA1237219 · design | Guangzhou Caihua Zhuanyin E-commerce Co., Ltd. | 21 Housewares | Registered | 2024 |
| CLARYSENSE 2191504 · TMA1271155 | Biosense Webster, Inc. | 9 Electronics10 Medical | Registered | 2024 |
| coolours 2184552 · TMA1280713 | CYBER LUX INC | 3 Cosmetics | Registered | 2025 |
| CLEARAQUA 2173173 · TMA1207865 | OriginClear, Inc | 42 Science | Registered | 2023 |
| ClearyX 2167244 · TMA1200529 | Cleary Gottlieb Steen & Hamilton LLP | 9 Electronics42 Science45 Legal | Registered | 2023 |
| CLEARSIPS 2166327 · TMA1219864 | CLEARSIPS LTD. | 32 Beer35 Advertising | Registered | 2024 |
| COLOROCK 2164846 · TMA1213352 · design | an individual | 11 Lighting | Registered | 2023 |