| DEFLECT 1748537 · TMA1005753 | LOVELAND PRODUCTS, INC. | 5 Pharmaceuticals | Registered | 2018 |
| DEFLECT 1601062 · TMA902787 | Specialized Bicycle Components, Inc. | 25 Clothing | Registered | 2015 |
| DEFLECT 1229990 · TMA654733 | AG Hair Ltd. | 3 Cosmetics | Registered | 2005 |
| DEFLECT 0711171 · TMA427514 | DEB CANADIAN HYGIENE INC. | 3 Cosmetics | Registered | 1994 |
| DEVLIEG 0420998 · TMA241829 · design | Bourn & Koch, LLC | 7 Machines | Registered | 1980 |
| DEFLICK 2335926 | an individual | 9 Electronics | Pending | 2024 |
| DUPLACH 2330094 · design | Owner not listed | 11 Lighting35 Advertising | Pending | 2024 |
| DEVILCASE 2071858 · TMA1280333 | DEVILCASE CO. LTD. | 9 Electronics | Registered | 2025 |
| DFLEX 2251230 · TMA1270104 | MindMatter Wheel Works Inc. | 12 Vehicles | Registered | 2024 |
| DEPOLOGY 2225539 · TMA1251209 | 25 Yale Street Holdings Co., Limited | 3 Cosmetics | Registered | 2024 |
| DUVELCO 2186613 · TMA1272595 | Goodwin PLC | 1 Chemicals | Registered | 2024 |
| dplight 2176960 · TMA1227179 | Shenzhen Zhongmao Huitong Technology Co. Ltd. | 11 Lighting | Registered | 2024 |
| DIAFLASH 2151736 · TMA1210997 · design | SHIMANO INC. | 28 Toys | Registered | 2023 |
| DOUBLESHOT 2128014 · TMA1216211 | INTEL CORPORATION | 9 Electronics | Registered | 2023 |
| DABALASH 2119542 · TMA1224320 · design | R&G Business LLC | 3 Cosmetics35 Advertising | Registered | 2024 |
| Doobilicious 2083041 · TMA1170045 | an individual | 34 Tobacco | Registered | 2023 |
| DBlosp 2074070 · TMA1282256 | Shenzhen Anpu desi Technology Co.Ltd. | 28 Toys | Registered | 2025 |
| DABLICATOR 2051902 · TMA1188135 | Jetty Marketing LLC | 5 Pharmaceuticals29 Meat30 Coffee+3 | Registered | 2023 |
| Deubelskerl 2032227 · TMA1127431 | Owner not shown | 25 Clothing | Registered | 2022 |
| DEFLEX 2031517 · TMA1141853 | TRAFIC INNOVATION INC. | 17 Rubber19 Building | Registered | 2022 |
| DIAFLOCC 2030698 · TMA1262527 | Diachem Polymers Ltd. | 1 Chemicals | Registered | 2024 |
| dvulk 2027572 · TMA1134104 | an individual | 10 Medical | Registered | 2022 |
| DUPLEXOME 2017848 · TMA1247769 | TwinStrand Biosciences, Inc. | 1 Chemicals5 Pharmaceuticals9 Electronics+2 | Registered | 2024 |
| DOPELESS 1991275 · TMA1281843 | an individual | 6 Metal | Registered | 2025 |
| DoppLock 1983595 · TMA1111266 | Doppstadt Beteilligungs GmbH | 6 Metal7 Machines | Registered | 2021 |