| MICROFLUIDICS 1829001 · TMA1005125 · design | Microfluidics International Corporation | 9 Electronics42 Science | Registered | 2018 |
| MICROFLUTE 0583391 · TMA338279 | INTEPLAST BAGS AND FILMS CORPORATION | 16 Paper17 Rubber | Registered | 1988 |
| MICROBUDDIES 2149291 | Good Gaming, Inc. | 9 Electronics36 Finance42 Science | Pending | 2021 |
| MICROFORMER 2161193 · TMA1256236 | Lagree Technologies, Inc. | 28 Toys41 Education | Registered | 2024 |
| MICROFLEX 1865824 · TMA1050204 | Shure Incorporated | 9 Electronics | Registered | 2019 |
| MICROFINE 1743808 · TMA1070799 | Haddenham Healthcare Limited | 5 Pharmaceuticals9 Electronics10 Medical+2 | Registered | 2020 |
| MICROFINISH 1722441 · TMA946074 | Thetford LLC | 4 Oils | Registered | 2016 |
| MICROFINE 1486205 · TMA804812 | an individual | 21 Housewares | Registered | 2011 |
| MICROBLUE 1416561 · TMA794285 · design | COBRA ELECTRONICS CORPORATION | 9 Electronics | Registered | 2011 |
| MICROFLEX 1236899 · TMA731404 | MARK'S WORK WEARHOUSE LTD. | 25 Clothing | Registered | 2008 |
| MICROFUSION 1187288 · TMA644054 | KURARAY CO. LTD. | 18 Leather25 Clothing | Registered | 2005 |
| MICROFLEX 1163771 · TMA606988 | EPICOR INDUSTRIES, INC. (a Delaware corporation) | 6 Metal | Registered | 2004 |
| MICROFLEX 0881452 · TMA519233 | Spectrum Brands, Inc. | 8 Hand | Registered | 1999 |
| MICROFLEX 0783828 · TMA472514 | Live Nation Entertainment, Inc. a Delaware corporation | 9 Electronics39 Transport42 Science | Registered | 1997 |
| MICROFIBRES 0760892 · TMA446060 | MICROFIBRES, INC. | 24 Textiles | Registered | 1995 |
| MICROFLEX 0720503 · TMA476351 | Ansell Healthcare Products LLC | 2 Paints9 Electronics10 Medical | Registered | 1997 |
| MICROBLADE 0702533 · TMA412680 | an individual | 28 Toys | Registered | 1993 |
| MICROBRITE 2243109 · TMA1261752 | Carson Optical, Inc. | 9 Electronics | Registered | 2024 |
| MyGroBox 2242029 · TMA1262941 | Owner not listed | 31 Fresh | Registered | 2024 |
| MACROBAR 2194575 · TMA1235132 | Go Macro, LLC | 5 Pharmaceuticals29 Meat30 Coffee | Registered | 2024 |
| MICROPILLOWS 2193766 · TMA1219401 | Fisher & Paykel Healthcare Limited | 10 Medical | Registered | 2024 |
| MICROBT 2188421 · TMA1232694 · design | Shenzhen MicroBT Electronics Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| MICROBT 2188420 · TMA1232693 | Shenzhen MicroBT Electronics Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| MICROBAN 2186261 · TMA1233509 · design | Microban Products Company | 21 Housewares | Registered | 2024 |
| MakerPlane 2184886 · TMA1231427 | Corona Aerospace Inc | 42 Science | Registered | 2024 |