| WindowGuru 2250938 · TMA1270064 | Owner not listed | 37 Construction | Registered | 2024 |
| WINDOWSMITH 0872774 · TMA524170 | S & D SMITH CENTRAL SUPPLIES LIMITED | 19 Building | Registered | 2000 |
| WINDOWSKIN 1886192 · TMA1083786 | WEXENERGY LLC LIMITED LIABILITY COMPANY DELAWARE | 17 Rubber19 Building | Registered | 2020 |
| WINDOWS 1840842 · TMA1111656 | Microsoft Corporation | 9 Electronics38 Telecommunications41 Education+1 | Registered | 2021 |
| WINDOWSEAT 1643570 · TMA910681 | HAWORTH, INC. | 20 Furniture | Registered | 2015 |
| WINDOWS 1526409 · TMA886177 · design | Prym Consumer USA Inc. | 6 Metal20 Furniture | Registered | 2014 |
| WINDOWS 1061912 · TMA561972 | Microsoft Corporation | 35 Advertising41 Education42 Science+1 | Registered | 2002 |
| WINDOWS 1010012 · TMA545757 | Microsoft Corporation | 9 Electronics38 Telecommunications | Registered | 2001 |
| WINDOWS 0791577 · TMA479464 | Microsoft Corporation | 16 Paper35 Advertising42 Science | Registered | 1997 |
| WINDOWS 0708515 · TMA459607 | Microsoft Corporation | 9 Electronics16 Paper | Registered | 1996 |
| WINDOWSTAR 2345601 · design | ClassicBrand Building Supply Inc. | 6 Metal20 Furniture37 Construction+2 | Pending | 2024 |
| WINDOWSTAR 2312294 · design | ClassicBrand Building Supply Inc. | 6 Metal | Pending | 2024 |
| WINDOXAL 2216015 | MEDICURE INC. | 5 Pharmaceuticals44 Medical | Pending | 2022 |
| WINDOWS 2116795 · design | Microsoft Corporation | 9 Electronics16 Paper35 Advertising+4 | Pending | 2021 |
| WINDOWS 11 2116778 · design | Microsoft Corporation | 9 Electronics16 Paper35 Advertising+4 | Pending | 2021 |
| WINDCOMMAND 1790922 · TMA1026429 | Owner not shown | 9 Electronics | Registered | 2019 |
| WINDOWS 365 1713102 · TMA1053051 | Microsoft Corporation | 9 Electronics35 Advertising37 Construction+5 | Registered | 2019 |
| WenTigDY 2260113 · TMA1279388 | Shenzhen Dihu Chuanglian Technology Co. Ltd. | 21 Housewares | Registered | 2024 |
| WINDCHASER 2218832 · TMA1246856 | Shenzhen Bilifu Technology Co., Ltd. | 9 Electronics | Registered | 2024 |
| WINDST 2205109 · TMA1240143 | an individual | 24 Textiles | Registered | 2024 |
| WINDSOR 2185028 · TMA1280719 | Castrads Ltd | 11 Lighting | Registered | 2025 |
| WYNTECRI 2183927 · TMA1213625 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| WOUNDEXPRESS 2146549 · TMA1216265 | an individual | 10 Medical | Registered | 2023 |
| Wintcomfort 2145583 · TMA1202887 | Zhongshan Wanzhu Technology Co. Ltd. | 11 Lighting | Registered | 2023 |
| WINDGUARD 2122984 · TMA1208499 | TAMKO Building Products LLC | 19 Building | Registered | 2023 |