| DILLINGER 1800505 · TMA1046876 · design | Owner not shown | 6 Metal40 Treatment | Registered | 2019 |
| DALING 1952243 · TMA1135977 · design | an individual | 8 Hand11 Lighting | Registered | 2022 |
| Diolong 2352566 | Owner not listed | 20 Furniture | Pending | 2024 |
| DOLLINGER 0611652 · TMA381834 | CELEROS FLOW TECHNOLOGY, LLC | 7 Machines11 Lighting | Registered | 1991 |
| DILLIMAX 2204891 · TMA1225510 · design | an individual | 6 Metal | Registered | 2024 |
| DUOLINGO 1686122 · TMA923676 | Duolingo, Inc. | 9 Electronics41 Education | Registered | 2015 |
| DUALLINK 2339686 | an individual | 5 Pharmaceuticals | Pending | 2024 |
| DUOLINGO 2166747 | Duolingo, Inc. | 16 Paper28 Toys | Pending | 2022 |
| DELANG 1695761 · TMA965425 · design | Shanghai Delang Auto Parts Manufacturing Co. LTD | 7 Machines12 Vehicles17 Rubber | Registered | 2017 |
| D2DLINK 1118003 · TMA587904 | OEConnection LLC | 35 Advertising | Registered | 2003 |
| DELONG 0771866 · TMA467766 · design | Rock Creek Athletics, Inc. | 16 Paper24 Textiles25 Clothing+1 | Registered | 1996 |
| DELONG 2294353 · design | XUZHOU DELONG GUANPAI SHEBEI CO. LTD. | 7 Machines | Pending | 2023 |
| Dalang 2272704 | Jiangmen Huacai Sanitary Ware Co. Ltd. | 11 Lighting | Pending | 2023 |
| DOLINCE 2206201 · TMA1244052 | Zhuji Shuxu Trading Co., Ltd. | 18 Leather | Registered | 2024 |
| DOLINCE 2206200 · TMA1244051 | Zhuji Shuxu Trading Co., Ltd. | 9 Electronics | Registered | 2024 |
| Delmag 2177919 · TMA1264025 | Owner not shown | 7 Machines | Registered | 2024 |
| DuelingSAUCER 2084402 · TMA1182629 | PROSLIDE TECHNOLOGY INC. | 28 Toys | Registered | 2023 |
| Dylonic 2083781 · TMA1141491 | PERCH ACQUISITION CO 3, LLC | 21 Housewares | Registered | 2022 |
| DWELLNESS 1987207 · TMA1251914 | The Brand Factory Inc. | 37 Construction | Registered | 2024 |
| DelíMCT 1913652 · TMA1154771 | an individual | 5 Pharmaceuticals29 Meat30 Coffee | Registered | 2022 |
| DELIMEX 1826285 · TMA1047638 | H.J. Heinz Company Brands LLC | 29 Meat30 Coffee | Registered | 2019 |
| DEALMAKER 1815282 · TMA1003336 | NOVATION SOLUTIONS INC. | 36 Finance42 Science | Registered | 2018 |
| DEALMAKER 1667278 · TMA965191 | The Driving Force Inc. | 9 Electronics | Registered | 2017 |
| DEALNEXUS 1647208 · TMA891857 | IntraLinks, Inc. a legal entity | 38 Telecommunications39 Transport42 Science | Registered | 2014 |
| DEALMAKER 1607904 · TMA889971 | Upland Software Ireland Limited | 42 Science | Registered | 2014 |