| DAYTEK 1867889 · TMA1104934 | DAYTEK AUSTRALIA PTY LTD. | 6 Metal7 Machines8 Hand+5 | Registered | 2021 |
| DAYTEK 0734664 · TMA437987 · design | POSCO International Corporation | 9 Electronics11 Lighting37 Construction+1 | Registered | 1995 |
| DITEK 1804716 · TMA995152 · design | Diversified Technology Group, Inc. | 9 Electronics42 Science | Registered | 2018 |
| DITEK 1804491 · TMA995171 | Diversified Technology Group, Inc. | 9 Electronics42 Science | Registered | 2018 |
| DYTEC 1531008 · TMA845173 · design | NANTONG QIANGSHENG NEW MATERIALS TECHNOLOGY CO. LTD. | 6 Metal9 Electronics10 Medical+1 | Registered | 2013 |
| DOTEKI 2350988 | TOMY International, Inc. | 28 Toys | Pending | 2024 |
| Duttek 2219192 | Shenzhen WeiLuoHua Electronics Co. Ltd. | 9 Electronics | Pending | 2022 |
| DITEC 1937383 · TMA1144979 | an individual | 6 Metal7 Machines9 Electronics+2 | Registered | 2022 |
| DETEX 1591448 · TMA911391 | ILLINOIS TOOL WORKS INC. | 4 Oils | Registered | 2015 |
| DUTEX 1455224 · TMA780012 | an individual | 20 Furniture | Registered | 2010 |
| DETEX 1119124 · TMA601311 | DETEX CORPORATION | 6 Metal9 Electronics14 Jewellery+1 | Registered | 2004 |
| DETEX 0157568 · TMDA54850 | DETEX CORPORATION | 6 Metal9 Electronics14 Jewellery+2 | Registered | 1932 |
| DATEG 2262753 | Owner not listed | 9 Electronics | Pending | 2023 |
| Dotyk 2222657 | an individual | 9 Electronics20 Furniture38 Telecommunications+2 | Pending | 2022 |
| DAYTECH 2185008 · design | QUANZHOU DAYTECH ELECTRONICS CO. LTD. | 9 Electronics | Pending | 2022 |
| Diydeg 2228584 · TMA1252790 | Shenzhen Kelingli Technology Co. Ltd. | 11 Lighting20 Furniture21 Housewares | Registered | 2024 |
| DOODOGS 2193786 · TMA1218751 · design | Jinjang Xuanyu Trade Co. Ltd. | 25 Clothing | Registered | 2024 |
| DOTSHA 2171722 · TMA1282596 · design | DOTSHA | 38 Telecommunications | Registered | 2025 |
| DIDK 2144468 · TMA1230029 | SHENHE INTERNATIONAL HOLDING GROUP CO., LIMITED | 25 Clothing | Registered | 2024 |
| DEDICA 2120748 · TMA1222093 | an individual | 7 Machines11 Lighting | Registered | 2024 |
| DUTZW 2103486 · TMA1189543 | an individual | 3 Cosmetics | Registered | 2023 |
| datasy 2088042 · TMA1184882 | Shanghai Pinteng Electronic Commerce Co. Ltd. | 25 Clothing | Registered | 2023 |
| DIYTEACH 2070934 · TMA1160328 · design | Zhejiang Teach E-Commerce Co.Ltd | 6 Metal | Registered | 2023 |
| DODECA 2048769 · TMA1167936 | Matthew McCormick Studio Inc. | 11 Lighting | Registered | 2023 |
| DOTCH 1935100 · TMA1123791 | TCL Communication Technology Holdings Limited | 9 Electronics | Registered | 2022 |