| MICROBLADE 0702533 · TMA412680 | an individual | 28 Toys | Registered | 1993 |
| MICROBRITE 2243109 · TMA1261752 | Carson Optical, Inc. | 9 Electronics | Registered | 2024 |
| MICROPLANE 1820038 · TMA1022767 | Grace Manufacturing, Inc. | 8 Hand21 Housewares30 Coffee | Registered | 2019 |
| MICROBLUE 1416561 · TMA794285 · design | COBRA ELECTRONICS CORPORATION | 9 Electronics | Registered | 2011 |
| MICROPLANE 1400954 · TMA764901 | Grace Manufacturing, Inc. | 8 Hand | Registered | 2010 |
| MICROPLACE 1377151 · TMA786337 | Microplace, Inc. | 36 Finance | Registered | 2011 |
| MICROPLANE 1278510 · TMA673696 | Grace Manufacturing, Inc. | 7 Machines | Registered | 2006 |
| MICROFLUTE 0583391 · TMA338279 | INTEPLAST BAGS AND FILMS CORPORATION | 16 Paper17 Rubber | Registered | 1988 |
| MICROBALANCE 1530967 · TMA864120 · design | an individual | 5 Pharmaceuticals31 Fresh42 Science | Registered | 2013 |
| MICROBREATHE 0816218 · TMA478221 | SPECIALTY COATINGS (AUST.) PTY LTD. | 24 Textiles | Registered | 1997 |
| MICROBECARE 2027725 | Parasol Medical, LLC | 5 Pharmaceuticals | Pending | 2020 |
| 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 |
| MICROBANK 2138047 · TMA1200204 | an individual | 9 Electronics | Registered | 2023 |
| MICROBEAU 2133735 · TMA1175968 | FK Irons, Inc. | 8 Hand35 Advertising41 Education | Registered | 2023 |
| MICROBLOK 2048709 · TMA1273724 | Chroma Color Corporation | 5 Pharmaceuticals | Registered | 2024 |
| MICROBYRE 1953518 · TMA1222694 | Microbyre, Inc. | 42 Science | Registered | 2024 |
| MicroBalm 1852254 · TMA1120097 | an individual | 16 Paper41 Education44 Medical | Registered | 2022 |
| MICROBAN 1799403 · TMA1071556 · design | Microban Products Company | 5 Pharmaceuticals42 Science | Registered | 2020 |
| MICROBIT 1713964 · TMA935135 | Toyo Tire Corporation | 12 Vehicles | Registered | 2016 |
| MICROBOTZ 1616817 · TMA1047770 | Afton Chemical Corporation | 1 Chemicals4 Oils | Registered | 2019 |
| MICROBOTZ 1616816 · TMA1047756 · design | Afton Chemical Corporation | 1 Chemicals4 Oils | Registered | 2019 |
| MICROBOLT 1612510 · TMA876076 | NACHURS ALPINE SOLUTIONS, LLC | 1 Chemicals42 Science44 Medical | Registered | 2014 |
| MICROBYTES 1605103 · TMA897162 | 9200-8283 QUÉBEC INC. opérant sous le nom de MICROBITS | 35 Advertising37 Construction | Registered | 2015 |