| COMBIPLEX 1172182 · TMA687172 | CELATOR PHARMACEUTICALS, INC. | 42 Science | Registered | 2007 |
| COMBIPARTS 0539176 · TMA330026 | an individual | 6 Metal7 Machines8 Hand+4 | Registered | 1987 |
| CombiFlex 1882476 · TMA1084376 | Owner not shown | 6 Metal12 Vehicles | Registered | 2020 |
| CombiFlex 1480115 · TMA807565 | an individual | 7 Machines | Registered | 2011 |
| COMBIBLOC 1105693 · TMA643077 | an individual | 16 Paper | Registered | 2005 |
| COMBIBLOC 0454522 · TMA256729 · design | an individual | 7 Machines9 Electronics10 Medical+2 | Registered | 1981 |
| COMBIFLEX 0309536 · TMA160672 | an individual | 6 Metal9 Electronics | Registered | 1969 |
| COMBIPATCH 2009567 · TMA1166408 | HISAMITSU PHARMACEUTICAL CO. INC. | 5 Pharmaceuticals | Registered | 2023 |
| COMBOPLATE 1080513 · TMA576941 | MANAC INC. | 12 Vehicles | Registered | 2003 |
| COMPUPLAST 0742732 · TMA451091 | COMPUPLAST INTERNATIONAL, INC. | 9 Electronics41 Education42 Science+1 | Registered | 1995 |
| COMBIBAR 2163908 · TMA1233415 | ESG Edelmetall-Service GmbH & Co. KG | 14 Jewellery35 Advertising40 Treatment | Registered | 2024 |
| COMBIBALE 2037435 · TMA1166507 · design | INTERCORD | 17 Rubber | Registered | 2023 |
| COMBOPRO 1552920 · TMA878882 | PrimeSource Building Products, Inc. | 7 Machines | Registered | 2014 |
| COMBIBAR 1524806 · TMA848937 | ESG Edelmetall-Service GmbH & Co. KG | 14 Jewellery35 Advertising40 Treatment | Registered | 2013 |
| COMBOPRO 1499260 · TMA817003 | PrimeSource Building Products, Inc. | 7 Machines | Registered | 2012 |
| COMFIHIPS 1402421 · TMA750998 | ComfiHips, LLC | 10 Medical | Registered | 2009 |
| COMBUBOIS 1320203 · TMA754593 · design | an individual | 19 Building37 Construction40 Treatment | Registered | 2009 |
| COMBIFIT 1105694 · TMA716679 | an individual | 16 Paper | Registered | 2008 |
| COMBIVIR 0836151 · TMA511776 | ViiV Healthcare UK Limited | 5 Pharmaceuticals | Registered | 1999 |
| COMBIVENT 0679652 · TMA472507 | Boehringer Ingelheim Pharma GmbH & Co. KG | 5 Pharmaceuticals | Registered | 1997 |
| Combibeam 2371146 | ArcelorMittal | 6 Metal12 Vehicles40 Treatment | Pending | 2024 |
| COMBIFILTER 1184089 · TMA617758 | ECS Holdings, Inc. | 7 Machines | Registered | 2004 |
| CAMBIVO 2252479 · TMA1239093 | Owner not listed | 20 Furniture | Registered | 2024 |
| COMBOPROXIMITY 2243728 · TMA1243401 | Owner not listed | 42 Science | Registered | 2024 |
| COMFIFY 2238130 · TMA1259823 | RK VENTURES INC. | 21 Housewares | Registered | 2024 |