| DORMEX 0458565 · TMA256786 | LE GROUPE JEAN COUTU (PJC) INC. | 5 Pharmaceuticals | Registered | 1981 |
| Duramex 1855398 · TMA1017556 | Bison Communications Inc. | 6 Metal9 Electronics15 Musical+1 | Registered | 2019 |
| DARIMAX 0776712 · TMA456077 | LACTALIS CANADA INC. | 29 Meat | Registered | 1996 |
| DermX 1379710 · TMA896239 | JRX Biotechnology, Inc. | 1 Chemicals | Registered | 2015 |
| DERMAX 1142776 · TMA598057 | Covidien LP | 10 Medical | Registered | 2003 |
| "DRAMEX" 0209075 · UCA38024 | Owner not shown | 2 Paints | Registered | 1950 |
| DARWINEX 2266489 · design | Tradeslide Ventures Limited | 36 Finance41 Education42 Science | Pending | 2023 |
| DURAMAX 1925628 · TMA1174176 · design | RelaDyne, LLC | 1 Chemicals3 Cosmetics4 Oils+2 | Registered | 2023 |
| DUROMAX 1729557 · TMA962813 | Fast-Sexing Technologies ULC | 5 Pharmaceuticals31 Fresh | Registered | 2017 |
| DURANEX 1687690 · TMA1039922 · design | POLYPLASTICS CO. LTD. | 1 Chemicals17 Rubber | Registered | 2019 |
| DURAMIX 1475769 · TMA792227 | KUHN NORTH AMERICA, INC. | 7 Machines | Registered | 2011 |
| DURAMAX 1473523 · TMA847070 | Grinder Wear Parts, Inc. | 7 Machines | Registered | 2013 |
| DURAMAX 1458135 · TMA802046 · design | an individual | 1 Chemicals3 Cosmetics6 Metal+8 | Registered | 2011 |
| DuraMax 1391629 · TMA740697 | an individual | 9 Electronics | Registered | 2009 |
| DURAMAX 1286562 · TMA578204 | Duramax Marine, LLC an Ohio limited liability company | 10 Medical11 Lighting12 Vehicles+3 | Registered | 2003 |
| DURAMAX 1286561 · TMA578204 | Duramax Marine, LLC an Ohio limited liability company | 6 Metal12 Vehicles17 Rubber+2 | Registered | 2003 |
| DURAMAX 1195091 · TMA634765 | Messer Canada Inc. | 21 Housewares | Registered | 2005 |
| DURAMAX 1069770 · TMA564969 | Flags Unlimited Corporation | 24 Textiles36 Finance | Registered | 2002 |
| DURAMAX 1066227 · TMA586691 | an individual | 1 Chemicals3 Cosmetics6 Metal+9 | Registered | 2003 |
| DURAMAX 1006915 · TMA531168 | Rohm and Haas Company | 1 Chemicals | Registered | 2000 |
| DURAMAX 0870844 · TMA549804 | General Motors LLC | 12 Vehicles | Registered | 2001 |
| DURAMIX 0861245 · TMA510175 | 3M Company | 1 Chemicals2 Paints | Registered | 1999 |
| DURAMAX 0742887 · TMA435045 | General Binding LLC | 16 Paper | Registered | 1994 |
| DUROMAX 0680749 · TMA402659 | an individual | 7 Machines | Registered | 1992 |
| DURAMAX 0333739 · TMA178546 | Duramax Marine, LLC an Ohio limited liability company | 7 Machines8 Hand12 Vehicles+1 | Registered | 1971 |