| NEMATREX 1871849 · TMA1067321 | COSMOCEL, SA | 1 Chemicals | Registered | 2019 |
| NEWMETRIX 2254554 · TMA1271616 | Oracle America, Inc. | 42 Science | Registered | 2024 |
| NUMATROL 0297137 · TMA153853 | an individual | 9 Electronics | Registered | 1967 |
| NUMETRIC 2315553 | Verily Life Sciences LLC | 9 Electronics10 Medical42 Science+1 | Pending | 2024 |
| NUMYTRIS 2025112 | Levo Therapeutics, Inc. | 5 Pharmaceuticals | Pending | 2020 |
| NEMATHORIN 0821696 · TMA485102 | ISHIHARA SANGYO KAISHA, LTD. | 5 Pharmaceuticals | Registered | 1997 |
| Numetrica 1994695 · TMA1125022 | an individual | 35 Advertising | Registered | 2022 |
| NINETREX 2257656 · TMA1276382 | Wenzhou Yijing Technology Co.Ltd. | 6 Metal | Registered | 2024 |
| NANOTRAP 2189417 · TMA1216522 | COWAY CO. LTD. | 11 Lighting | Registered | 2023 |
| NEWENTOR 2100068 · TMA1174831 | SHENZHEN GGMM INDUSTRIAL CO. LTD. | 9 Electronics11 Lighting | Registered | 2023 |
| Nemidor 2069393 · TMA1159284 | an individual | 25 Clothing | Registered | 2023 |
| Nomader 1840228 · TMA1056410 | Nomader, LLC | 5 Pharmaceuticals6 Metal9 Electronics+2 | Registered | 2019 |
| NEANDERTHAL 1802346 · TMA990015 · design | NORTH SHORE SURFACING INC. | 30 Coffee | Registered | 2018 |
| NANOTHERM 1701301 · TMA949256 | an individual | 1 Chemicals5 Pharmaceuticals10 Medical | Registered | 2016 |
| nanothermia 1626632 · TMA906366 | an individual | 9 Electronics10 Medical | Registered | 2015 |
| NANODERM 1605287 · TMA907353 | Axcelon Dermacare Inc. | 5 Pharmaceuticals | Registered | 2015 |
| NANOTRAC 1542840 · TMA863148 | Microtrac, Inc. | 9 Electronics | Registered | 2013 |
| NANTERO 1414016 · TMA781288 | Nantero, Inc. | 9 Electronics | Registered | 2010 |
| neoNytro 1405796 · TMA758359 | NeoTerra Systems Inc. | 9 Electronics | Registered | 2010 |
| NANOTHERM 1311226 · TMA699712 | an individual | 5 Pharmaceuticals | Registered | 2007 |
| NANOTRON 1155397 · TMA727743 · design | NANOTRON TECHNOLOGIES GmbH | 9 Electronics38 Telecommunications42 Science | Registered | 2008 |
| NANOTRON 1149542 · TMA619414 | NANOTRON TECHNOLOGIES GmbH | 9 Electronics38 Telecommunications42 Science | Registered | 2004 |
| NEONTRAIN 2324666 | Owner not listed | 9 Electronics35 Advertising41 Education+1 | Pending | 2024 |
| NANOTERRATECH 2313664 · design | NanoTerraTech Advanced Materials Inc. | 1 Chemicals42 Science | Pending | 2024 |
| NANOTERRATECH 2313663 | NanoTerraTech Advanced Materials Inc. | 1 Chemicals42 Science | Pending | 2024 |