| CYCLOMEN 0385977 · TMA215427 | sanofi-aventis U.S. LLC a Delaware limited liability company | 5 Pharmaceuticals | Registered | 1976 |
| CYCLEWIN 2217914 · TMA1246751 | 1000337078 Ontario Inc. | 12 Vehicles | Registered | 2024 |
| CYCLONE 2185236 · TMA1214666 | A. O. SMITH CORPORATION | 11 Lighting | Registered | 2023 |
| CYCLONECC 2171436 · TMA1278802 | Carbon Clean Solutions Limited | 11 Lighting42 Science | Registered | 2024 |
| CYCLONE 1980350 · TMA1245942 | BRITISH FASTENING SYSTEMS LIMITED | 6 Metal | Registered | 2024 |
| cyclamen 1917057 · TMA1108954 | Donglan Chuangfu Technology (shenzhen) Co., Ltd. | 8 Hand9 Electronics11 Lighting+3 | Registered | 2021 |
| CYCLONIS 1865452 · TMA1086337 | Cyclonis Limited, a legal entity | 9 Electronics42 Science | Registered | 2020 |
| CYCLONE 1840705 · TMA1039371 | ALTERA CORPORATION | 9 Electronics | Registered | 2019 |
| CYCLONE 1745468 · TMA1081828 | Heartland Recreational Vehicles, LLC | 12 Vehicles | Registered | 2020 |
| CYCLONE 1718224 · TMA973459 | Checkers Industrial Products, LLC | 9 Electronics | Registered | 2017 |
| CYCLONE 1644351 · TMA891472 · design | Cyclone Diamond products Ltd. | 7 Machines8 Hand | Registered | 2014 |
| CYCLOMOLY 1578355 · TMA873244 | Advanced Cyclotron Systems Inc. | 1 Chemicals5 Pharmaceuticals9 Electronics+5 | Registered | 2014 |
| CYCLONE 1509584 · TMA957445 · design | Sikorsky Aircraft Corporation | 12 Vehicles | Registered | 2016 |
| CYCLONE 1509583 · TMA957414 | Sikorsky Aircraft Corporation | 12 Vehicles | Registered | 2016 |
| CYCLONE 1470638 · TMA808671 | Batteries Dixon Inc. | 9 Electronics | Registered | 2011 |
| CYCLONE 1439054 · TMA809319 | Portacool, LLC | 11 Lighting16 Paper | Registered | 2011 |
| CYCLONE 1356611 · TMA788031 | Applica Consumer Products, Inc. | 7 Machines | Registered | 2011 |
| CYCLONE 1250965 · TMA680461 · design | North America Range Hoods Inc. | 11 Lighting35 Advertising37 Construction | Registered | 2007 |
| CYCLONE 1226350 · TMA679103 | North America Range Hoods Inc. | 11 Lighting35 Advertising | Registered | 2007 |
| CYCLONE 1172566 · TMA615665 · design | The Luminaires Group U.S.A. LLC | 6 Metal9 Electronics11 Lighting+7 | Registered | 2004 |
| CYCLONE 1136068 · TMA589670 | Unilever Canada Inc. | 30 Coffee | Registered | 2003 |
| CYCLONE 1078501 · TMA599096 | The Luminaires Group U.S.A. LLC | 9 Electronics10 Medical11 Lighting+7 | Registered | 2004 |
| CYCLONE 0764842 · TMA492314 | LINVATEC CORPORATION, A FLORIDA CORPORATION | 10 Medical | Registered | 1998 |
| CYCLAMATIC 0570995 · TMA343900 | Rite-Hite Holding Corporation (a Wisconsin corporation) | 7 Machines | Registered | 1988 |
| CYCLONE 0489615 · TMA283269 | ECM Industries, LLC | 7 Machines | Registered | 1983 |